1662 lines
53 KiB
C
1662 lines
53 KiB
C
/*
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A little auto-calibration utility, for boards
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that support it.
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copyright (C) 1999,2000,2001,2002 by David Schleef
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copyright (C) 2003 by Frank Mori Hess
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*/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License as *
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* published by *
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* the Free Software Foundation; either version 2.1 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <getopt.h>
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#include <ctype.h>
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "calib.h"
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char ni_id[] = "$Id$";
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struct board_struct{
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char *name;
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int status;
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int (*cal)( calibration_setup_t *setup);
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void (*setup_observables)( calibration_setup_t *setup );
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int ref_eeprom_lsb;
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int ref_eeprom_msb;
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};
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static int ni_setup_board( calibration_setup_t *setup , const char *device_name );
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static void ni_setup_observables( calibration_setup_t *setup );
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static void ni_setup_observables_611x( calibration_setup_t *setup );
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static void ni67xx_setup_observables( calibration_setup_t *setup );
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static int cal_ni_at_mio_16e_2(calibration_setup_t *setup);
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static int cal_ni_daqcard_ai_16xe_50(calibration_setup_t *setup);
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static int cal_ni_at_mio_16e_1(calibration_setup_t *setup);
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static int cal_ni_pci_mio_16e_1(calibration_setup_t *setup);
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static int cal_ni_pci_6014(calibration_setup_t *setup);
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static int cal_ni_pci_6024e(calibration_setup_t *setup);
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static int cal_ni_pci_6025e(calibration_setup_t *setup);
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static int cal_ni_pci_6032e(calibration_setup_t *setup);
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static int cal_ni_pci_6034e(calibration_setup_t *setup);
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static int cal_ni_pci_6035e(calibration_setup_t *setup);
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static int cal_ni_pci_6036e(calibration_setup_t *setup);
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static int cal_ni_pci_6071e(calibration_setup_t *setup);
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static int cal_ni_pxi_6071e(calibration_setup_t *setup);
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static int cal_ni_at_mio_16e_10(calibration_setup_t *setup);
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static int cal_ni_pci_mio_16xe_50(calibration_setup_t *setup);
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static int cal_ni_pci_6023e(calibration_setup_t *setup);
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static int cal_ni_at_mio_16xe_50(calibration_setup_t *setup);
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static int cal_ni_pci_mio_16xe_10(calibration_setup_t *setup);
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static int cal_ni_pci_6052e(calibration_setup_t *setup);
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static int cal_ni_daqcard_ai_16e_4(calibration_setup_t *setup);
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static int cal_ni_pci_611x(calibration_setup_t *setup);
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static int cal_ni_pci_mio_16e_4(calibration_setup_t *setup);
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static int cal_ni_daqcard_6062e(calibration_setup_t *setup);
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static int cal_ni_daqcard_6024e(calibration_setup_t *setup);
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static int cal_ni_daqcard_6036e(calibration_setup_t *setup);
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static int cal_ni_pci_6711(calibration_setup_t *setup);
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static double ni_get_reference( calibration_setup_t *setup, int lsb_loc,int msb_loc);
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static struct board_struct boards[]={
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{ "at-ai-16xe-10", STATUS_UNKNOWN, NULL, ni_setup_observables, 0x1b7, 0x1b8 },
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{ "at-mio-16de-10", STATUS_UNKNOWN, NULL, ni_setup_observables, 0x1a7, 0x1a8 },
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{ "at-mio-16e-1", STATUS_DONE, cal_ni_at_mio_16e_1, ni_setup_observables, 0x1a9, 0x1aa },
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{ "at-mio-16e-2", STATUS_DONE, cal_ni_at_mio_16e_2, ni_setup_observables, 0x1a9, 0x1aa },
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{ "at-mio-16e-10", STATUS_DONE, cal_ni_at_mio_16e_10, ni_setup_observables, 0x1a7, 0x1a8 },
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{ "at-mio-16xe-10", STATUS_UNKNOWN, NULL, ni_setup_observables, 0x1b7, 0x1b8 },
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{ "at-mio-16xe-50", STATUS_SOME, cal_ni_at_mio_16xe_50, ni_setup_observables, 0x1b5, 0x1b6 },
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{ "at-mio-64e-3", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1},
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{ "DAQCard-ai-16e-4", STATUS_DONE, cal_ni_daqcard_ai_16e_4, ni_setup_observables, 0x1b5, 0x1b6 },
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{ "DAQCard-ai-16xe-50", STATUS_DONE, cal_ni_daqcard_ai_16xe_50, ni_setup_observables, 0x1be, 0x1bf },
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{ "DAQCard-6024E", STATUS_SOME, cal_ni_daqcard_6024e, ni_setup_observables, -1, -1 },
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{ "DAQCard-6036E", STATUS_DONE, cal_ni_daqcard_6036e, ni_setup_observables, 0x1ab, 0x1ac },
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{ "DAQCard-6062E", STATUS_DONE, cal_ni_daqcard_6062e, ni_setup_observables, 0x1a9, 0x1aa },
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{ "pci-mio-16e-1", STATUS_DONE, cal_ni_pci_mio_16e_1, ni_setup_observables, 0x1a9, 0x1aa },
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{ "pci-mio-16e-4", STATUS_SOME, cal_ni_pci_mio_16e_4, ni_setup_observables, 0x1a9, 0x1aa },
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{ "pci-mio-16xe-10", STATUS_DONE, cal_ni_pci_mio_16xe_10, ni_setup_observables, 0x1ae, 0x1af },
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{ "pci-mio-16xe-50", STATUS_SOME, cal_ni_pci_mio_16xe_50, ni_setup_observables, 0x1b5, 0x1b6 },
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{ "pci-6014", STATUS_DONE, cal_ni_pci_6014, ni_setup_observables, 0x1ab, 0x1ac },
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{ "pci-6023e", STATUS_DONE, cal_ni_pci_6023e, ni_setup_observables, 0x1bb, 0x1bc },
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{ "pci-6024e", STATUS_SOME, cal_ni_pci_6024e, ni_setup_observables, 0x1af, 0x1b0 },
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{ "pci-6025e", STATUS_SOME, cal_ni_pci_6025e, ni_setup_observables, 0x1af, 0x1b0 },
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{ "pci-6031e", STATUS_DONE, cal_ni_pci_mio_16xe_10, ni_setup_observables, 0x1ae, 0x1af },
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{ "pci-6032e", STATUS_DONE, cal_ni_pci_6032e, ni_setup_observables, 0x1ae, 0x1af },
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{ "pci-6033e", STATUS_DONE, cal_ni_pci_6032e, ni_setup_observables, 0x1b7, 0x1b8 },
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{ "pci-6034e", STATUS_DONE, cal_ni_pci_6034e, ni_setup_observables, 0x1bb, 0x1bc },
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{ "pci-6035e", STATUS_DONE, cal_ni_pci_6035e, ni_setup_observables, 0x1af, 0x1b0 },
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{ "pci-6036e", STATUS_DONE, cal_ni_pci_6036e, ni_setup_observables, 0x1ab, 0x1ac },
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{ "pci-6052e", STATUS_DONE, cal_ni_pci_6052e, ni_setup_observables, 0x19f, 0x1a0 },
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{ "pci-6071e", STATUS_DONE, cal_ni_pci_6071e, ni_setup_observables, 0x1a9, 0x1aa },
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{ "pci-6110", STATUS_DONE, cal_ni_pci_611x, ni_setup_observables_611x, 0x1d4, 0x1d5 },
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{ "pci-6111", STATUS_DONE, cal_ni_pci_611x, ni_setup_observables_611x, 0x1d4, 0x1d5 },
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{ "pxi-6025e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
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{ "pxi-6030e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
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{ "pxi-6031e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
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{ "pxi-6040e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
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{ "pxi-6052e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
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{ "pxi-6070e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
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{ "pxi-6071e", STATUS_GUESS, cal_ni_pxi_6071e, ni_setup_observables, -1, -1 },
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{ "pci-6711", STATUS_DONE, cal_ni_pci_6711, ni67xx_setup_observables, 0x1d4, 0x1d5},
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{ "pci-6713", STATUS_DONE, cal_ni_pci_6711, ni67xx_setup_observables, 0x1d4, 0x1d5},
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{ "pci-6731", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
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{ "pci-6733", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
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{ "pxi-6711", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
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{ "pxi-6713", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
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{ "pxi-6731", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
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{ "pxi-6733", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
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#if 0
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{ "at-mio-64e-3", cal_ni_16e_1 },
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#endif
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};
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#define n_boards (sizeof(boards)/sizeof(boards[0]))
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static const int ni_num_observables = 20;
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enum observables{
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ni_zero_offset_low = 0,
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ni_zero_offset_high,
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ni_reference_low,
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ni_unip_zero_offset_low,
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ni_unip_zero_offset_high,
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ni_unip_reference_low,
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ni_ao0_zero_offset,
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ni_ao0_reference,
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ni_ao0_linearity,
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ni_ao1_zero_offset,
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ni_ao1_reference,
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ni_ao1_linearity,
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ni_ao0_unip_zero_offset,
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ni_ao0_unip_reference,
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ni_ao0_unip_low_linearity,
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ni_ao0_unip_mid_linearity,
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ni_ao1_unip_zero_offset,
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ni_ao1_unip_reference,
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ni_ao1_unip_low_linearity,
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ni_ao1_unip_mid_linearity,
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};
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static inline unsigned int ni_ao_zero_offset( unsigned int channel )
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{
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if( channel ) return ni_ao1_zero_offset;
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else return ni_ao0_zero_offset;
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}
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static inline unsigned int ni_ao_reference( unsigned int channel )
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{
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if( channel ) return ni_ao1_reference;
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else return ni_ao0_reference;
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}
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static inline unsigned int ni_ao_mid_linearity( unsigned int channel )
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{
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if( channel ) return ni_ao1_linearity;
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else return ni_ao0_linearity;
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}
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static inline unsigned int ni_ao_unip_zero_offset( unsigned int channel )
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{
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if( channel ) return ni_ao1_unip_zero_offset;
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else return ni_ao0_unip_zero_offset;
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}
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static inline unsigned int ni_ao_unip_reference( unsigned int channel )
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{
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if( channel ) return ni_ao1_unip_reference;
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else return ni_ao0_unip_reference;
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}
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static inline unsigned int ni_ao_unip_low_linearity( unsigned int channel )
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{
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if( channel ) return ni_ao1_unip_low_linearity;
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else return ni_ao0_unip_low_linearity;
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}
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static inline unsigned int ni_ao_unip_mid_linearity( unsigned int channel )
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{
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if( channel ) return ni_ao1_unip_mid_linearity;
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else return ni_ao0_unip_mid_linearity;
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}
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static const int num_ao_observables_611x = 4;
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static int ni_ao_zero_offset_611x( const calibration_setup_t *setup,
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unsigned int channel, unsigned int range ) {
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assert( range == 0 );
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return 2 * channel;
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};
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static int ni_ao_reference_611x( const calibration_setup_t *setup,
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unsigned int channel, unsigned int range ) {
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assert( range == 0 );
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return 2 * channel + 1;
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};
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static int ni_zero_offset_611x( const calibration_setup_t *setup,
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unsigned int channel, unsigned int range ) {
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return num_ao_observables_611x + 8 * range + 2 * channel;
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};
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static int ni_reference_611x( const calibration_setup_t *setup,
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unsigned int channel, unsigned int range ) {
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return num_ao_observables_611x + 8 * range + 2 * channel + 1;
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};
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enum reference_sources {
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REF_GND_GND = 0,
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REF_AOGND_AIGND = 1,
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REF_DAC0_GND = 2,
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REF_DAC1_GND = 3,
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REF_CALSRC_CALSRC = 4,
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REF_CALSRC_GND = 5,
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REF_DAC0_CALSRC = 6,
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REF_DAC1_CALSRC = 7,
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};
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static inline unsigned int REF_DAC_GND( unsigned int channel )
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{
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if( channel ) return REF_DAC1_GND;
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else return REF_DAC0_GND;
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}
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static inline unsigned int REF_DAC_CALSRC( unsigned int channel )
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{
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if( channel ) return REF_DAC1_CALSRC;
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else return REF_DAC0_CALSRC;
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}
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static struct board_struct* ni_board( calibration_setup_t *setup )
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{
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return setup->private_data;
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}
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typedef struct
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{
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int adc_pregain_offset;
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int adc_postgain_offset;
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int adc_gain;
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int adc_pregain_offset_fine;
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int adc_postgain_offset_fine;
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int adc_gain_fine;
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int adc_unip_offset;
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int adc_unip_offset_fine;
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int dac_offset[ 2 ];
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int dac_offset_fine[ 2 ];
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int dac_gain[ 2 ];
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int dac_gain_fine[ 2 ];
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int dac_linearity[ 2 ];
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} ni_caldac_layout_t;
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static int cal_ni_generic( calibration_setup_t *setup,
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const ni_caldac_layout_t *layout );
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static inline void init_ni_caldac_layout( ni_caldac_layout_t *layout )
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{
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int i;
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layout->adc_pregain_offset = -1;
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layout->adc_postgain_offset = -1;
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layout->adc_gain = -1;
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layout->adc_unip_offset = -1;
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layout->adc_unip_offset_fine = -1;
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layout->adc_pregain_offset_fine = -1;
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layout->adc_postgain_offset_fine = -1;
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layout->adc_gain_fine = -1;
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for( i = 0; i < 2; i++ )
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{
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layout->dac_offset[ i ] = -1;
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layout->dac_offset_fine[ i ] = -1;
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layout->dac_gain[ i ] = -1;
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layout->dac_gain_fine[ i ] = -1;
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layout->dac_linearity[ i ] = -1;
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}
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}
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int ni_setup( calibration_setup_t *setup , const char *device_name )
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{
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int retval;
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retval = ni_setup_board( setup, device_name );
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if( retval < 0 ) return retval;
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setup_caldacs( setup, setup->caldac_subdev );
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return 0;
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}
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static int ni_setup_board( calibration_setup_t *setup, const char *device_name )
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{
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int i;
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for(i = 0; i < n_boards; i++ ){
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if(!strcmp( device_name, boards[i].name )){
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setup->status = boards[i].status;
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setup->do_cal = boards[i].cal;
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setup->private_data = &boards[ i ];
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boards[i].setup_observables( setup );
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break;
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}
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}
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if( i == n_boards ) return -1;
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return 0;
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}
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static void ni_setup_ao_observables( calibration_setup_t *setup )
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{
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observable *o;
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comedi_insn tmpl, po_tmpl;
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unsigned int channel;
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int ai_bipolar_lowgain;
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int ao_bipolar_lowgain;
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int ao_unipolar_lowgain;
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ai_bipolar_lowgain = get_bipolar_lowgain( setup->dev, setup->ad_subdev);
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assert(ai_bipolar_lowgain >= 0);
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ao_bipolar_lowgain = get_bipolar_lowgain( setup->dev, setup->da_subdev);
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assert(ao_bipolar_lowgain >= 0);
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ao_unipolar_lowgain = get_unipolar_lowgain( setup->dev, setup->da_subdev);
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memset(&tmpl,0,sizeof(tmpl));
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tmpl.insn = INSN_READ;
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tmpl.n = 1;
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tmpl.subdev = setup->ad_subdev;
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memset(&po_tmpl, 0, sizeof(po_tmpl));
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po_tmpl.insn = INSN_WRITE;
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po_tmpl.n = 1;
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po_tmpl.subdev = setup->da_subdev;
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for( channel = 0; channel < 2; channel++ )
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{
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/* ao zero offset */
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o = setup->observables + ni_ao_zero_offset( channel );
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assert( o->name == NULL );
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asprintf( &o->name, "ao %i, zero offset, low gain", channel );
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK(channel,ao_bipolar_lowgain,0);
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o->preobserve_insn.data = o->preobserve_data;
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o->observe_insn = tmpl;
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o->observe_insn.chanspec =
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CR_PACK(REF_DAC_GND( channel ),ai_bipolar_lowgain,AREF_OTHER)
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| CR_ALT_SOURCE | CR_ALT_FILTER;
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o->reference_source = REF_DAC_GND( channel );
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set_target( setup, ni_ao_zero_offset( channel ),0.0);
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/* ao gain */
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o = setup->observables + ni_ao_reference( channel );
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assert( o->name == NULL );
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asprintf( &o->name, "ao %i, reference voltage, low gain", channel );
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK(channel,ao_bipolar_lowgain,0);
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o->preobserve_insn.data = o->preobserve_data;
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o->observe_insn = tmpl;
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o->observe_insn.chanspec =
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CR_PACK(REF_DAC_GND( channel ),ai_bipolar_lowgain,AREF_OTHER)
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| CR_ALT_SOURCE | CR_ALT_FILTER;
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o->reference_source = REF_DAC_GND( channel );
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set_target( setup, ni_ao_reference( channel ),8.0);
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/* ao linearity, mid */
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o = setup->observables + ni_ao_mid_linearity( channel );
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assert( o->name == NULL );
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asprintf( &o->name, "ao %i, linearity (mid), low gain", channel );
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK(channel,ao_bipolar_lowgain,0);
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|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_DAC_GND( channel ),ai_bipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_DAC_GND( channel );
|
|
set_target( setup, ni_ao_mid_linearity( channel ),4.0);
|
|
|
|
if( ao_unipolar_lowgain >= 0 )
|
|
{
|
|
/* ao unipolar zero offset */
|
|
o = setup->observables + ni_ao_unip_zero_offset( channel );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ao %i, unipolar zero offset, low gain", channel );
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK(channel,ao_unipolar_lowgain,0);
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_DAC_GND( channel ),ai_bipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_DAC_GND( channel );
|
|
set_target( setup, ni_ao_unip_zero_offset( channel ),0.0);
|
|
|
|
/* ao unipolar gain */
|
|
o = setup->observables + ni_ao_unip_reference( channel );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ao %i, unipolar high, low gain", channel );
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK(channel,ao_unipolar_lowgain,0);
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_DAC_GND( channel ),ai_bipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_DAC_GND( channel );
|
|
set_target( setup, ni_ao_unip_reference( channel ), 9.0);
|
|
|
|
/* ao unipolar linearity, mid */
|
|
o = setup->observables + ni_ao_unip_mid_linearity( channel );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ao %i, unipolar linearity (mid), low gain", channel );
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK(channel,ao_unipolar_lowgain,0);
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_DAC_GND( channel ),ai_bipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_DAC_GND( channel );
|
|
set_target( setup, ni_ao_unip_mid_linearity( channel ), 5.0);
|
|
|
|
/* ao unipolar linearity, low */
|
|
o = setup->observables + ni_ao_unip_low_linearity( channel );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ao %i, unipolar linearity (low), low gain", channel );
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK(channel,ao_unipolar_lowgain,0);
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_DAC_GND( channel ),ai_bipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_DAC_GND( channel );
|
|
set_target( setup, ni_ao_unip_low_linearity( channel ), 1.0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ni_setup_observables( calibration_setup_t *setup )
|
|
{
|
|
comedi_insn tmpl;
|
|
int bipolar_lowgain;
|
|
int bipolar_highgain;
|
|
int unipolar_lowgain;
|
|
int unipolar_highgain;
|
|
double voltage_reference;
|
|
observable *o;
|
|
|
|
bipolar_lowgain = get_bipolar_lowgain( setup->dev, setup->ad_subdev);
|
|
bipolar_highgain = get_bipolar_highgain( setup->dev, setup->ad_subdev);
|
|
unipolar_lowgain = get_unipolar_lowgain( setup->dev, setup->ad_subdev);
|
|
unipolar_highgain = get_unipolar_highgain( setup->dev, setup->ad_subdev);
|
|
|
|
if( ni_board( setup )->ref_eeprom_lsb >= 0 &&
|
|
ni_board( setup )->ref_eeprom_msb >= 0 )
|
|
{
|
|
voltage_reference = ni_get_reference( setup,
|
|
ni_board( setup )->ref_eeprom_lsb, ni_board( setup )->ref_eeprom_msb );
|
|
}else
|
|
{
|
|
DPRINT( 0, "WARNING: unknown eeprom address for reference voltage\n"
|
|
"correction. This might be fixable if you send us an eeprom dump\n"
|
|
"(see the demo/eeprom_dump program).\n");
|
|
voltage_reference = 5.0;
|
|
}
|
|
|
|
memset(&tmpl,0,sizeof(tmpl));
|
|
tmpl.insn = INSN_READ;
|
|
tmpl.n = 1;
|
|
tmpl.subdev = setup->ad_subdev;
|
|
|
|
setup->n_observables = ni_num_observables;
|
|
|
|
/* 0 offset, low gain */
|
|
o = setup->observables + ni_zero_offset_low;
|
|
o->name = "ai, bipolar zero offset, low gain";
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK(REF_GND_GND,bipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_GND_GND;
|
|
o->target = 0;
|
|
|
|
/* 0 offset, high gain */
|
|
o = setup->observables + ni_zero_offset_high;
|
|
o->name = "ai, bipolar zero offset, high gain";
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK(REF_GND_GND,bipolar_highgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_GND_GND;
|
|
o->target = 0;
|
|
|
|
/* voltage reference */
|
|
o = setup->observables + ni_reference_low;
|
|
o->name = "ai, bipolar voltage reference, low gain";
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK(REF_CALSRC_GND,bipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_CALSRC_GND;
|
|
o->target = voltage_reference;
|
|
|
|
if(unipolar_lowgain>=0){
|
|
o = setup->observables + ni_unip_zero_offset_low;
|
|
o->name = "ai, unipolar zero offset, low gain";
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_GND_GND,unipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_GND_GND;
|
|
o->target = very_low_target( setup->dev, setup->ad_subdev, 0, unipolar_lowgain );
|
|
|
|
o = setup->observables + ni_unip_reference_low;
|
|
o->name = "ai, unipolar voltage reference, low gain";
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_CALSRC_GND,unipolar_lowgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_CALSRC_GND;
|
|
o->target = voltage_reference;
|
|
}
|
|
|
|
if(unipolar_highgain >= 0)
|
|
{
|
|
o = setup->observables + ni_unip_zero_offset_high;
|
|
o->name = "ai, unipolar zero offset, high gain";
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec =
|
|
CR_PACK(REF_GND_GND,unipolar_highgain,AREF_OTHER)
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_GND_GND;
|
|
o->target = very_low_target( setup->dev, setup->ad_subdev, 0, unipolar_highgain );
|
|
}
|
|
|
|
if(setup->da_subdev >= 0)
|
|
ni_setup_ao_observables( setup );
|
|
}
|
|
|
|
/* for +-50V and +-20V ranges, the reference source goes 0V
|
|
* to 50V instead of 0V to 5V */
|
|
static unsigned int cal_gain_register_bits_611x( double reference, double *voltage )
|
|
{
|
|
int bits;
|
|
|
|
bits = 200.0 * ( *voltage / reference );
|
|
if( bits > 200 ) bits = 200;
|
|
if( bits < 0 ) bits = 0;
|
|
|
|
*voltage = reference * ( bits / 200.0 );
|
|
return bits;
|
|
}
|
|
|
|
static unsigned int ref_source_611x( unsigned int ref_source, unsigned int cal_gain_bits )
|
|
{
|
|
return ( ref_source & 0xf ) | ( ( cal_gain_bits << 4 ) & 0xff0 );
|
|
}
|
|
|
|
static void reference_target_611x( calibration_setup_t *setup,
|
|
observable *o, double master_reference, unsigned int range )
|
|
{
|
|
int cal_gain_reg_bits;
|
|
double reference;
|
|
double target;
|
|
comedi_range *range_ptr;
|
|
|
|
range_ptr = comedi_get_range( setup->dev, setup->ad_subdev, 0, range );
|
|
assert( range_ptr != NULL );
|
|
if( range_ptr->max > 19.0 ) reference = 10 * master_reference;
|
|
else reference = master_reference;
|
|
target = range_ptr->max * 0.8;
|
|
|
|
cal_gain_reg_bits = cal_gain_register_bits_611x( reference, &target );
|
|
|
|
o->reference_source = ref_source_611x( REF_CALSRC_GND, cal_gain_reg_bits );
|
|
o->target = target;
|
|
}
|
|
|
|
static void ni_setup_observables_611x( calibration_setup_t *setup )
|
|
{
|
|
comedi_insn tmpl;
|
|
comedi_insn po_tmpl;
|
|
int range, channel;
|
|
double master_reference;
|
|
observable *o;
|
|
int num_ai_channels, num_ai_ranges;
|
|
static const int num_ao_channels = 2;
|
|
|
|
setup->sv_settling_time_ns = 10000000;
|
|
setup->sv_order = 14;
|
|
|
|
master_reference = ni_get_reference( setup,
|
|
ni_board( setup )->ref_eeprom_lsb, ni_board( setup )->ref_eeprom_msb );
|
|
|
|
memset(&tmpl,0,sizeof(tmpl));
|
|
tmpl.insn = INSN_READ;
|
|
tmpl.n = 1;
|
|
tmpl.subdev = setup->ad_subdev;
|
|
|
|
num_ai_channels = comedi_get_n_channels( setup->dev, setup->ad_subdev );
|
|
assert( num_ai_channels >= 0 );
|
|
num_ai_ranges = comedi_get_n_ranges( setup->dev, setup->ad_subdev, 0 );
|
|
assert( num_ai_ranges >= 0 );
|
|
|
|
for( channel = 0; channel < num_ai_channels; channel++ )
|
|
{
|
|
for( range = 0; range < num_ai_ranges; range++ )
|
|
{
|
|
/* 0 offset */
|
|
o = setup->observables + ni_zero_offset_611x( setup, channel, range );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ai, ch %i, range %i, zero offset",
|
|
channel, range );
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK( channel, range, AREF_DIFF )
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_GND_GND;
|
|
o->target = 0.0;
|
|
|
|
/* voltage reference */
|
|
o = setup->observables + ni_reference_611x( setup, channel, range );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ai, ch %i, range %i, voltage reference",
|
|
channel, range );
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK( channel, range, AREF_DIFF )
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
reference_target_611x( setup, o, master_reference, range );
|
|
}
|
|
}
|
|
|
|
memset(&po_tmpl,0,sizeof(po_tmpl));
|
|
po_tmpl.insn = INSN_WRITE;
|
|
po_tmpl.n = 1;
|
|
po_tmpl.subdev = setup->da_subdev;
|
|
|
|
for( channel = 0; channel < num_ao_channels; channel ++ )
|
|
{
|
|
static const int ai_range_for_ao = 2;
|
|
|
|
/* ao zero offset */
|
|
o = setup->observables + ni_ao_zero_offset_611x( setup, channel, 0 );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ao ch %i, zero offset", channel );
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK( channel, 0, AREF_GROUND );
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK( 0, ai_range_for_ao, AREF_DIFF )
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_DAC_GND( channel );
|
|
set_target( setup, ni_ao_zero_offset_611x( setup, channel, 0 ), 0.0 );
|
|
|
|
/* ao gain */
|
|
o = setup->observables + ni_ao_reference_611x( setup, channel, 0 );
|
|
assert( o->name == NULL );
|
|
asprintf( &o->name, "ao ch %i, reference voltage", channel );
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK( channel, 0, AREF_GROUND );
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK( 0, ai_range_for_ao, AREF_DIFF )
|
|
| CR_ALT_SOURCE | CR_ALT_FILTER;
|
|
o->reference_source = REF_DAC_GND( channel );
|
|
set_target( setup, ni_ao_reference_611x( setup, channel, 0 ), 5.0 );
|
|
}
|
|
|
|
setup->n_observables = num_ao_observables_611x + 2 * num_ai_ranges * num_ai_channels;
|
|
}
|
|
|
|
static int cal_ni_daqcard_ai_16xe_50(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 2;
|
|
layout.adc_gain = 0;
|
|
layout.adc_gain_fine = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_at_mio_16xe_50(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 2;
|
|
layout.adc_gain = 0;
|
|
layout.adc_gain_fine = 1;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 4;
|
|
layout.dac_offset[ 1 ] = 7;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_mio_16xe_10(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 2;
|
|
layout.adc_postgain_offset_fine = 3;
|
|
layout.adc_gain = 0;
|
|
layout.adc_gain_fine = 1;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 4;
|
|
layout.dac_offset[ 1 ] = 7;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_at_mio_16e_1(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 1;
|
|
layout.adc_gain = 3;
|
|
layout.adc_unip_offset = 2;
|
|
layout.dac_offset[0] = 5;
|
|
layout.dac_gain[0] = 6;
|
|
layout.dac_linearity[0] = 4;
|
|
layout.dac_offset[1] = 8;
|
|
layout.dac_gain[1] = 9;
|
|
layout.dac_linearity[1] = 7;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_at_mio_16e_2(calibration_setup_t *setup)
|
|
{
|
|
return cal_ni_at_mio_16e_1(setup);
|
|
}
|
|
|
|
static int cal_ni_pci_mio_16e_1(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 1;
|
|
layout.adc_unip_offset = 2;
|
|
layout.adc_gain = 3;
|
|
layout.dac_offset[ 0 ] = 5;
|
|
layout.dac_gain[ 0 ] = 6;
|
|
layout.dac_linearity[ 0 ] = 4;
|
|
layout.dac_offset[ 1 ] = 8;
|
|
layout.dac_gain[ 1 ] = 9;
|
|
layout.dac_linearity[ 1 ] = 7;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6014(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_gain = 2;
|
|
layout.dac_offset[0] = 6;
|
|
layout.dac_offset_fine[0] = 10;
|
|
layout.dac_gain[0] = 7;
|
|
layout.dac_gain_fine[0] = 11;
|
|
layout.dac_offset[1] = 9;
|
|
layout.dac_offset_fine[1] = 1;
|
|
layout.dac_gain[1] = 3;
|
|
layout.dac_gain_fine[1] = 5;
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6032e(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 2;
|
|
layout.adc_postgain_offset_fine = 3;
|
|
layout.adc_gain = 0;
|
|
layout.adc_gain_fine = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6034e(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6035e(calibration_setup_t *setup)
|
|
{
|
|
/* this is for the ad8804_debug caldac */
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6036e(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
if( comedi_get_version_code( setup->dev ) <= COMEDI_VERSION_CODE( 0, 7, 66 ) )
|
|
{
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.67 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
}
|
|
|
|
/* this is for the ad8804_debug caldac */
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_gain = 2;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 7;
|
|
layout.dac_gain_fine[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 3;
|
|
layout.dac_gain_fine[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6071e(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
if( comedi_get_version_code( setup->dev ) <= COMEDI_VERSION_CODE( 0, 7, 66 ) )
|
|
{
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.67 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
}
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_unip_offset = 7;
|
|
layout.adc_gain = 2;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pxi_6071e(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
if( comedi_get_version_code( setup->dev ) <= COMEDI_VERSION_CODE( 0, 7, 66 ) )
|
|
{
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.67 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
}
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_at_mio_16e_10(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
if(comedi_get_version_code(setup->dev) <= COMEDI_VERSION_CODE(0, 7, 68))
|
|
{
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.69 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
}
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
layout.adc_unip_offset = 7;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[1] = 1;
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_mio_16xe_50(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 2;
|
|
layout.adc_gain = 0;
|
|
layout.adc_gain_fine = 1;
|
|
layout.adc_unip_offset = 7;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 4;
|
|
layout.dac_offset[ 1 ] = 7;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6023e(calibration_setup_t *setup)
|
|
{
|
|
/* for comedi-0.7.65 */
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8; /* possibly wrong */
|
|
layout.adc_pregain_offset_fine = 0;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6024e(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_gain = 2;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6025e(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_gain = 2;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_6052e(calibration_setup_t *setup)
|
|
{
|
|
/*
|
|
* This board has noisy caldacs
|
|
*
|
|
* The NI documentation says (true mb88341 addressing):
|
|
* 0, 8 AI pregain (coarse, fine)
|
|
* 4, 12 AI postgain
|
|
* 2, 10 AI reference
|
|
* 14, 7 AI unipolar offset
|
|
*
|
|
* 0 AO0 linearity
|
|
* 8, 4 AO0 reference
|
|
* 12 AO0 offset
|
|
* 2 AO1 linearity
|
|
* 10, 6 AO1 reference
|
|
* 14 AO1 offset
|
|
*
|
|
* For us, these map to (ad8804 channels)
|
|
*
|
|
* 0, 1 AI pregain (coarse, fine)
|
|
* 2, 3 AI postgain
|
|
* 4, 5 AI reference
|
|
* 7 AI unipolar offset
|
|
*
|
|
* 0 AO0 linearity
|
|
* 1, 2 AO0 reference
|
|
* 3 AO0 offset
|
|
* 4 AO1 linearity
|
|
* 5, 6 AO1 reference
|
|
* 7 AO1 offset
|
|
*
|
|
* or, with mb88341 channels
|
|
*
|
|
* xxx AO0 linearity
|
|
* 7, 3 AO0 reference
|
|
* 11 AO0 offset
|
|
* 1 AO1 linearity
|
|
* 9, 5 AO1 reference
|
|
* xxx AO1 offset
|
|
*
|
|
*/
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 2;
|
|
layout.adc_gain = 4;
|
|
layout.adc_unip_offset = 6;
|
|
layout.adc_unip_offset_fine = 7;
|
|
layout.adc_pregain_offset_fine = 1;
|
|
layout.adc_postgain_offset_fine = 3;
|
|
layout.adc_gain_fine = 5;
|
|
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.67 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
/* this works when the first two caldacs are ad8804_debug */
|
|
layout.dac_offset[ 0 ] = 16 + 3;
|
|
layout.dac_gain[ 0 ] = 16 + 1;
|
|
layout.dac_gain_fine[ 0 ] = 16 + 2;
|
|
layout.dac_linearity[ 0 ] = 16 + 0;
|
|
layout.dac_offset[ 1 ] = 16 + 7;
|
|
layout.dac_gain[ 1 ] = 16 + 5;
|
|
layout.dac_gain_fine[ 1 ] = 16 + 6;
|
|
layout.dac_linearity[ 1 ] = 16 + 4;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_daqcard_ai_16e_4(calibration_setup_t *setup)
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 1;
|
|
layout.adc_gain = 3;
|
|
layout.adc_unip_offset = 2;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int adc_offset_611x( unsigned int channel )
|
|
{
|
|
return 2 * channel + 2;
|
|
}
|
|
static int adc_gain_611x( unsigned int channel )
|
|
{
|
|
return 2 * channel + 1;
|
|
}
|
|
static int dac_offset_611x( unsigned int channel )
|
|
{
|
|
return 12 + 2 + 2 * channel;
|
|
}
|
|
static int dac_gain_611x( unsigned int channel )
|
|
{
|
|
return 12 + 1 + 2 * channel;
|
|
}
|
|
static int cal_ni_pci_611x( calibration_setup_t *setup )
|
|
{
|
|
generic_layout_t layout;
|
|
|
|
init_generic_layout( &layout );
|
|
layout.adc_offset = adc_offset_611x;
|
|
layout.adc_gain = adc_gain_611x;
|
|
layout.dac_offset = dac_offset_611x;
|
|
layout.dac_gain = dac_gain_611x;
|
|
layout.adc_high_observable = ni_reference_611x;
|
|
layout.adc_ground_observable = ni_zero_offset_611x;
|
|
layout.dac_high_observable = ni_ao_reference_611x;
|
|
layout.dac_ground_observable = ni_ao_zero_offset_611x;
|
|
|
|
return generic_cal_by_channel_and_range( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_pci_mio_16e_4( calibration_setup_t *setup )
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
layout.adc_unip_offset = 7;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_daqcard_6062e( calibration_setup_t *setup )
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
if( comedi_get_version_code( setup->dev ) <= COMEDI_VERSION_CODE( 0, 7, 66 ) )
|
|
{
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.67 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
}
|
|
init_ni_caldac_layout( &layout );
|
|
layout.adc_pregain_offset = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
layout.adc_unip_offset = 7;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 11;
|
|
layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
layout.dac_linearity[ 1 ] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_daqcard_6024e( calibration_setup_t *setup )
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
//layout.adc_unip_offset = 7;
|
|
layout.dac_offset[ 0 ] = 6;
|
|
layout.dac_gain[ 0 ] = 3;
|
|
//layout.dac_linearity[ 0 ] = 10;
|
|
layout.dac_offset[ 1 ] = 1;
|
|
layout.dac_gain[ 1 ] = 5;
|
|
//layout.dac_linearity[ 1 ] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static int cal_ni_daqcard_6036e( calibration_setup_t *setup )
|
|
{
|
|
ni_caldac_layout_t layout;
|
|
|
|
if( comedi_get_version_code( setup->dev ) <= COMEDI_VERSION_CODE( 0, 7, 68 ) )
|
|
{
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.69 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
}
|
|
|
|
init_ni_caldac_layout( &layout );
|
|
|
|
layout.adc_pregain_offset = 0;
|
|
layout.adc_pregain_offset_fine = 8;
|
|
layout.adc_postgain_offset = 4;
|
|
layout.adc_gain = 2;
|
|
|
|
layout.dac_offset[0] = 6;
|
|
layout.dac_gain[0] = 7;
|
|
layout.dac_gain_fine[ 0 ] = 11;
|
|
layout.dac_linearity[0] = 10;
|
|
|
|
layout.dac_offset[ 1 ] = 9;
|
|
layout.dac_gain[ 1 ] = 3;
|
|
layout.dac_gain_fine[ 1 ] = 5;
|
|
layout.dac_linearity[1] = 1;
|
|
|
|
return cal_ni_generic( setup, &layout );
|
|
}
|
|
|
|
static void prep_adc_caldacs_generic( calibration_setup_t *setup,
|
|
const ni_caldac_layout_t *layout, unsigned int range )
|
|
{
|
|
int retval;
|
|
|
|
if( setup->old_calibration == NULL )
|
|
{
|
|
reset_caldac( setup, layout->adc_pregain_offset );
|
|
reset_caldac( setup, layout->adc_postgain_offset );
|
|
reset_caldac( setup, layout->adc_gain );
|
|
reset_caldac( setup, layout->adc_pregain_offset_fine );
|
|
reset_caldac( setup, layout->adc_postgain_offset_fine );
|
|
reset_caldac( setup, layout->adc_gain_fine );
|
|
reset_caldac( setup, layout->adc_unip_offset );
|
|
reset_caldac( setup, layout->adc_unip_offset_fine );
|
|
}else
|
|
{
|
|
retval = comedi_apply_parsed_calibration( setup->dev, setup->ad_subdev,
|
|
0, range, AREF_GROUND, setup->old_calibration );
|
|
if( retval < 0 )
|
|
{
|
|
DPRINT( 0, "Failed to apply existing calibration, reseting adc caldacs.\n" );
|
|
reset_caldac( setup, layout->adc_pregain_offset );
|
|
reset_caldac( setup, layout->adc_postgain_offset );
|
|
reset_caldac( setup, layout->adc_gain );
|
|
reset_caldac( setup, layout->adc_pregain_offset_fine );
|
|
reset_caldac( setup, layout->adc_postgain_offset_fine );
|
|
reset_caldac( setup, layout->adc_gain_fine );
|
|
reset_caldac( setup, layout->adc_unip_offset );
|
|
reset_caldac( setup, layout->adc_unip_offset_fine );
|
|
}
|
|
}
|
|
}
|
|
|
|
static void prep_dac_caldacs_generic( calibration_setup_t *setup,
|
|
const ni_caldac_layout_t *layout, unsigned int channel, unsigned int range )
|
|
{
|
|
int retval;
|
|
|
|
if( setup->da_subdev < 0 ) return;
|
|
|
|
if( setup->old_calibration == NULL )
|
|
{
|
|
reset_caldac( setup, layout->dac_offset[ channel ] );
|
|
reset_caldac( setup, layout->dac_offset_fine[ channel ] );
|
|
reset_caldac( setup, layout->dac_gain[ channel ] );
|
|
reset_caldac( setup, layout->dac_gain_fine[ channel ] );
|
|
reset_caldac( setup, layout->dac_linearity[ channel ] );
|
|
}else
|
|
{
|
|
retval = comedi_apply_parsed_calibration( setup->dev, setup->da_subdev,
|
|
channel, range, AREF_GROUND, setup->old_calibration );
|
|
if( retval < 0 )
|
|
{
|
|
DPRINT( 0, "Failed to apply existing calibration, reseting dac caldacs.\n" );
|
|
reset_caldac( setup, layout->dac_offset[ channel ] );
|
|
reset_caldac( setup, layout->dac_offset_fine[ channel ] );
|
|
reset_caldac( setup, layout->dac_gain[ channel ] );
|
|
reset_caldac( setup, layout->dac_gain_fine[ channel ] );
|
|
reset_caldac( setup, layout->dac_linearity[ channel ] );
|
|
}
|
|
}
|
|
}
|
|
|
|
static void prep_adc_for_dac( calibration_setup_t *setup, int observable )
|
|
{
|
|
unsigned int adc_range;
|
|
int chanspec;
|
|
|
|
if( observable < 0 ) return;
|
|
|
|
chanspec = setup->observables[ observable ].observe_insn.chanspec;
|
|
adc_range = CR_RANGE( chanspec );
|
|
|
|
comedi_apply_parsed_calibration( setup->dev, setup->ad_subdev,
|
|
0, adc_range, 0, setup->new_calibration );
|
|
}
|
|
|
|
static int cal_ni_generic( calibration_setup_t *setup, const ni_caldac_layout_t *layout )
|
|
{
|
|
comedi_calibration_setting_t *current_cal;
|
|
int retval;
|
|
int num_ai_ranges;
|
|
int range;
|
|
int ai_unipolar_lowgain, ai_bipolar_lowgain;
|
|
|
|
num_ai_ranges = comedi_get_n_ranges( setup->dev, setup->ad_subdev, 0 );
|
|
assert( num_ai_ranges > 0 );
|
|
|
|
ai_bipolar_lowgain = get_bipolar_lowgain( setup->dev, setup->ad_subdev );
|
|
ai_unipolar_lowgain = get_unipolar_lowgain( setup->dev, setup->ad_subdev );
|
|
|
|
prep_adc_caldacs_generic( setup, layout, ai_bipolar_lowgain );
|
|
|
|
current_cal = sc_alloc_calibration_setting( setup );
|
|
current_cal->subdevice = setup->ad_subdev;
|
|
reset_caldac( setup, layout->adc_gain_fine );
|
|
generic_do_relative( setup, current_cal, ni_zero_offset_low,
|
|
ni_reference_low, layout->adc_gain );
|
|
reset_caldac( setup, layout->adc_postgain_offset_fine );
|
|
generic_do_relative( setup, current_cal, ni_zero_offset_low,
|
|
ni_zero_offset_high, layout->adc_postgain_offset );
|
|
generic_do_relative( setup, current_cal, ni_zero_offset_low,
|
|
ni_zero_offset_high, layout->adc_postgain_offset_fine );
|
|
reset_caldac( setup, layout->adc_pregain_offset_fine );
|
|
generic_do_cal( setup, current_cal, ni_zero_offset_high, layout->adc_pregain_offset );
|
|
generic_do_relative( setup, current_cal, ni_zero_offset_low,
|
|
ni_reference_low, layout->adc_gain_fine );
|
|
generic_do_cal( setup, current_cal, ni_zero_offset_high,
|
|
layout->adc_pregain_offset_fine );
|
|
sc_push_channel( current_cal, SC_ALL_CHANNELS );
|
|
sc_push_aref( current_cal, SC_ALL_AREFS );
|
|
if( layout->adc_unip_offset >= 0 )
|
|
{
|
|
sc_push_range( current_cal, SC_ALL_RANGES );
|
|
}else
|
|
{
|
|
for( range = 0; range < num_ai_ranges; range++ )
|
|
{
|
|
if( is_bipolar( setup->dev, setup->ad_subdev, 0, range ) )
|
|
sc_push_range( current_cal, range );
|
|
}
|
|
}
|
|
|
|
/* do seperate unipolar calibration if appropriate */
|
|
if( ai_unipolar_lowgain >= 0 )
|
|
{
|
|
current_cal = sc_alloc_calibration_setting( setup );
|
|
current_cal->subdevice = setup->ad_subdev;
|
|
if( layout->adc_unip_offset >= 0 )
|
|
{
|
|
reset_caldac( setup, layout->adc_unip_offset_fine );
|
|
generic_do_cal( setup, current_cal, ni_unip_zero_offset_high,
|
|
layout->adc_unip_offset );
|
|
generic_do_cal( setup, current_cal, ni_unip_zero_offset_high,
|
|
layout->adc_unip_offset_fine );
|
|
/* if we don't have a unipolar offset caldac, do a fully
|
|
* independent calibration for unipolar ranges */
|
|
}else
|
|
{
|
|
prep_adc_caldacs_generic( setup, layout, ai_unipolar_lowgain );
|
|
generic_peg( setup, ni_unip_zero_offset_low,
|
|
layout->adc_pregain_offset, 1 );
|
|
generic_peg( setup, ni_unip_zero_offset_low,
|
|
layout->adc_postgain_offset, 1 );
|
|
generic_do_relative( setup, current_cal, ni_unip_zero_offset_low,
|
|
ni_unip_reference_low, layout->adc_gain );
|
|
generic_do_relative( setup, current_cal, ni_unip_zero_offset_low,
|
|
ni_unip_zero_offset_high, layout->adc_postgain_offset );
|
|
generic_do_relative( setup, current_cal, ni_unip_zero_offset_low,
|
|
ni_unip_zero_offset_high, layout->adc_postgain_offset_fine );
|
|
generic_do_cal( setup, current_cal, ni_unip_zero_offset_high,
|
|
layout->adc_pregain_offset );
|
|
generic_do_relative( setup, current_cal, ni_unip_zero_offset_low,
|
|
ni_unip_reference_low, layout->adc_gain_fine );
|
|
generic_do_cal( setup, current_cal, ni_unip_zero_offset_high,
|
|
layout->adc_pregain_offset_fine );
|
|
}
|
|
for( range = 0; range < num_ai_ranges; range++ )
|
|
{
|
|
if( is_unipolar( setup->dev, setup->ad_subdev, 0, range ) )
|
|
sc_push_range( current_cal, range );
|
|
}
|
|
sc_push_channel( current_cal, SC_ALL_CHANNELS );
|
|
sc_push_aref( current_cal, SC_ALL_AREFS );
|
|
}
|
|
if( setup->da_subdev >= 0 && setup->do_output )
|
|
{
|
|
unsigned int channel, range;
|
|
int ao_unipolar_lowgain = get_unipolar_lowgain( setup->dev, setup->da_subdev );
|
|
int ao_bipolar_lowgain = get_bipolar_lowgain( setup->dev, setup->da_subdev );
|
|
int num_ao_ranges;
|
|
|
|
for( channel = 0; channel < 2; channel++ )
|
|
{
|
|
num_ao_ranges = comedi_get_n_ranges( setup->dev, setup->da_subdev, channel );
|
|
prep_dac_caldacs_generic( setup, layout, channel, ao_bipolar_lowgain );
|
|
prep_adc_for_dac( setup, ni_ao_reference( channel ) );
|
|
|
|
current_cal = sc_alloc_calibration_setting( setup );
|
|
current_cal->subdevice = setup->da_subdev;
|
|
generic_do_linearity( setup, current_cal, ni_ao_zero_offset( channel ),
|
|
ni_ao_mid_linearity( channel ), ni_ao_reference( channel ),
|
|
layout->dac_linearity[ channel ] );
|
|
reset_caldac(setup, layout->dac_offset_fine[channel]);
|
|
generic_do_cal( setup, current_cal, ni_ao_zero_offset( channel ),
|
|
layout->dac_offset[ channel ] );
|
|
generic_do_cal( setup, current_cal, ni_ao_zero_offset( channel ),
|
|
layout->dac_offset_fine[ channel ] );
|
|
reset_caldac( setup, layout->dac_gain_fine[ channel ] );
|
|
generic_do_cal( setup, current_cal, ni_ao_reference( channel ),
|
|
layout->dac_gain[ channel ] );
|
|
generic_do_cal( setup, current_cal, ni_ao_reference( channel ),
|
|
layout->dac_gain_fine[ channel ] );
|
|
sc_push_channel( current_cal, channel );
|
|
for( range = 0; range < num_ao_ranges; range++ )
|
|
{
|
|
if( is_bipolar( setup->dev, setup->da_subdev, channel, range ) )
|
|
sc_push_range( current_cal, range );
|
|
}
|
|
sc_push_aref( current_cal, SC_ALL_AREFS );
|
|
|
|
if( ao_unipolar_lowgain >= 0 )
|
|
{
|
|
prep_dac_caldacs_generic( setup, layout, channel, ao_unipolar_lowgain );
|
|
|
|
current_cal = sc_alloc_calibration_setting( setup );
|
|
current_cal->subdevice = setup->da_subdev;
|
|
generic_do_linearity( setup, current_cal, ni_ao_unip_low_linearity( channel ),
|
|
ni_ao_unip_mid_linearity( channel ), ni_ao_unip_reference( channel ),
|
|
layout->dac_linearity[ channel ] );
|
|
reset_caldac( setup, layout->dac_offset_fine[ channel ] );
|
|
generic_do_cal( setup, current_cal, ni_ao_unip_zero_offset( channel),
|
|
layout->dac_offset[ channel ] );
|
|
generic_do_cal( setup, current_cal, ni_ao_unip_zero_offset( channel),
|
|
layout->dac_offset_fine[ channel ] );
|
|
reset_caldac( setup, layout->dac_gain_fine[ channel ] );
|
|
generic_do_cal( setup, current_cal, ni_ao_unip_reference( channel ),
|
|
layout->dac_gain[ channel ] );
|
|
generic_do_cal( setup, current_cal, ni_ao_unip_reference( channel ),
|
|
layout->dac_gain_fine[ channel ] );
|
|
sc_push_channel( current_cal, channel );
|
|
for( range = 0; range < num_ao_ranges; range++ )
|
|
{
|
|
if( is_unipolar( setup->dev, setup->da_subdev, channel, range ) )
|
|
sc_push_range( current_cal, range );
|
|
}
|
|
sc_push_aref( current_cal, SC_ALL_AREFS );
|
|
}
|
|
}
|
|
}
|
|
|
|
retval = write_calibration_file( setup );
|
|
|
|
return retval;
|
|
}
|
|
|
|
static double ni_get_reference( calibration_setup_t *setup, int lsb_loc,int msb_loc)
|
|
{
|
|
int lsb,msb;
|
|
int16_t uv;
|
|
double ref;
|
|
|
|
lsb=read_eeprom( setup, lsb_loc );
|
|
msb=read_eeprom( setup, msb_loc );
|
|
assert( lsb >=0 && msb >= 0 );
|
|
DPRINT(0,"eeprom reference lsb=%d msb=%d\n", lsb, msb);
|
|
|
|
uv = ( lsb & 0xff ) | ( ( msb << 8 ) & 0xff00 );
|
|
ref=5.000+1.0e-6*uv;
|
|
DPRINT(0, "resulting reference voltage: %g\n", ref );
|
|
if( fabs( ref - 5.0 ) > 0.005 )
|
|
DPRINT( 0, "WARNING: eeprom indicates reference is more than 5mV away\n"
|
|
"from 5V. Possible bad eeprom address?\n" );
|
|
|
|
return ref;
|
|
}
|
|
|
|
/****************
|
|
NI 671x and 673x support
|
|
**************/
|
|
|
|
static const int channels_per_ad8804 = 16;
|
|
|
|
static inline int ni67xx_ao_gain_caldac(unsigned int ao_channel)
|
|
{
|
|
int ad8804_gain_channels[4] = {8, 2, 11, 5};
|
|
int caldac_channel = ad8804_gain_channels[ao_channel % 4];
|
|
int caldac_index = ao_channel / 4;
|
|
/* just guessing that second ad8804 is works for ao channels 4-7
|
|
* the same as the first ad8804 works for ao channels 0-3 */
|
|
return caldac_index * channels_per_ad8804 + caldac_channel;
|
|
}
|
|
static inline int ni67xx_ao_linearity_caldac(unsigned int ao_channel)
|
|
{
|
|
int ad8804_linearity_channels[4] = {4, 10, 1, 0};
|
|
int caldac_channel = ad8804_linearity_channels[ao_channel % 4];
|
|
int caldac_index = ao_channel / 4;
|
|
|
|
return caldac_index * channels_per_ad8804 + caldac_channel;
|
|
}
|
|
static inline int ni67xx_ao_offset_caldac(unsigned int ao_channel)
|
|
{
|
|
int ad8804_offset_channels[4] = {7, 6, 9, 3};
|
|
int caldac_channel = ad8804_offset_channels[ao_channel % 4];
|
|
int caldac_index = ao_channel / 4;
|
|
|
|
return caldac_index * channels_per_ad8804 + caldac_channel;
|
|
}
|
|
|
|
static int ni67xx_ao_ground_observable_index( const calibration_setup_t *setup,
|
|
unsigned int channel, unsigned int ao_range )
|
|
{
|
|
return 3 * channel + 0;
|
|
}
|
|
|
|
static int ni67xx_ao_mid_observable_index( const calibration_setup_t *setup,
|
|
unsigned int channel, unsigned int ao_range )
|
|
{
|
|
return 3 * channel + 1;
|
|
}
|
|
|
|
static int ni67xx_ao_high_observable_index( const calibration_setup_t *setup,
|
|
unsigned int channel, unsigned int ao_range )
|
|
{
|
|
return 3 * channel + 2;
|
|
}
|
|
|
|
static const double ni67xx_unitless_adc_offset = 0.5;
|
|
|
|
/* determine conversion factor between actual voltage and
|
|
* interval [0,1) returned by reads from the calibration adc
|
|
* subdevice.
|
|
*/
|
|
static double ni67xx_unitless_adc_slope(calibration_setup_t *setup)
|
|
{
|
|
double reference_in_volts;
|
|
double reference_unitless;
|
|
double slope;
|
|
comedi_insn insn;
|
|
lsampl_t data;
|
|
comedi_range *range;
|
|
static const int maxdata = 0x10000;
|
|
int retval;
|
|
|
|
if(ni_board(setup)->ref_eeprom_lsb >= 0 &&
|
|
ni_board(setup)->ref_eeprom_msb >= 0)
|
|
{
|
|
reference_in_volts = ni_get_reference(setup,
|
|
ni_board(setup)->ref_eeprom_lsb, ni_board(setup)->ref_eeprom_msb );
|
|
}else
|
|
{
|
|
DPRINT( 0, "WARNING: unknown eeprom address for reference voltage\n"
|
|
"correction. This might be fixable if you send us an eeprom dump\n"
|
|
"(see the demo/eeprom_dump program).\n");
|
|
reference_in_volts = 5.0;
|
|
}
|
|
|
|
memset(&insn, 0, sizeof(insn));
|
|
insn.insn = INSN_READ;
|
|
insn.n = 1;
|
|
insn.subdev = setup->ad_subdev;
|
|
insn.data = &data;
|
|
insn.chanspec = CR_PACK(0, 0, AREF_GROUND) | CR_ALT_SOURCE;
|
|
retval = comedi_do_insn(setup->dev, &insn);
|
|
assert(retval >= 0);
|
|
|
|
range = comedi_get_range(setup->dev, setup->ad_subdev, 0, 0);
|
|
assert( range );
|
|
reference_unitless = comedi_to_phys(data, range, maxdata);
|
|
|
|
slope = (reference_unitless - ni67xx_unitless_adc_offset) / reference_in_volts;
|
|
|
|
return slope;
|
|
}
|
|
|
|
/* calibration adc uses RANGE_UNKNOWN, so it will return a value from
|
|
0.0 to 1.0 instead of a voltage, so we need to renormalize. */
|
|
static void ni67xx_set_target( calibration_setup_t *setup, int obs, double target, double slope)
|
|
{
|
|
set_target(setup, obs, target);
|
|
/* convert target from volts to interval [0,1) which calibration
|
|
* adc returns */
|
|
setup->observables[obs].target *= slope;
|
|
setup->observables[obs].target += ni67xx_unitless_adc_offset;
|
|
}
|
|
|
|
static void ni67xx_setup_observables( calibration_setup_t *setup )
|
|
{
|
|
comedi_insn tmpl, po_tmpl;
|
|
observable *o;
|
|
int num_ao_channels;
|
|
int i;
|
|
double slope;
|
|
|
|
slope = ni67xx_unitless_adc_slope(setup);
|
|
|
|
/* calibration adc is very slow (15HZ) but accurate, so only sample a few times */
|
|
setup->sv_order = 1;
|
|
|
|
num_ao_channels = comedi_get_n_channels(setup->dev, setup->da_subdev);
|
|
assert(num_ao_channels >= 0);
|
|
|
|
memset( &tmpl, 0, sizeof(tmpl) );
|
|
tmpl.insn = INSN_READ;
|
|
tmpl.n = 1;
|
|
tmpl.subdev = setup->ad_subdev;
|
|
|
|
memset( &po_tmpl, 0, sizeof(po_tmpl) );
|
|
po_tmpl.insn = INSN_WRITE;
|
|
po_tmpl.n = 1;
|
|
po_tmpl.subdev = setup->da_subdev;
|
|
|
|
setup->n_observables = 0;
|
|
|
|
for(i = 0; i < num_ao_channels; i++)
|
|
{
|
|
o = setup->observables + ni67xx_ao_ground_observable_index( setup,
|
|
i, 0);
|
|
o->reference_source = -1;
|
|
assert( o->name == NULL );
|
|
asprintf(&o->name, "dac%i ground, ground referenced", i);
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK(i, 0, AREF_GROUND);
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK(i, 0, AREF_GROUND);
|
|
ni67xx_set_target(setup, ni67xx_ao_ground_observable_index(setup, i, 0), 0.0, slope);
|
|
setup->n_observables++;
|
|
|
|
o = setup->observables + ni67xx_ao_mid_observable_index( setup,
|
|
i, 0);
|
|
o->reference_source = -1;
|
|
assert( o->name == NULL );
|
|
asprintf(&o->name, "dac%i mid, ground referenced", i);
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK(i, 0, AREF_GROUND);
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK(i, 0, AREF_GROUND);
|
|
ni67xx_set_target(setup, ni67xx_ao_mid_observable_index(setup, i, 0), 4.0, slope);
|
|
setup->n_observables++;
|
|
|
|
o = setup->observables + ni67xx_ao_high_observable_index( setup, i, 0);
|
|
o->reference_source = -1;
|
|
assert( o->name == NULL );
|
|
asprintf(&o->name, "dac%i high, ground referenced", i);
|
|
o->preobserve_insn = po_tmpl;
|
|
o->preobserve_insn.chanspec = CR_PACK( i, 0, AREF_GROUND );
|
|
o->preobserve_insn.data = o->preobserve_data;
|
|
o->observe_insn = tmpl;
|
|
o->observe_insn.chanspec = CR_PACK(i, 0, AREF_GROUND);
|
|
ni67xx_set_target(setup, ni67xx_ao_high_observable_index(setup, i, 0), 8.0, slope);
|
|
setup->n_observables++;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static int cal_ni_pci_6711(calibration_setup_t *setup)
|
|
{
|
|
generic_layout_t layout;
|
|
|
|
if( comedi_get_version_code( setup->dev ) <= COMEDI_VERSION_CODE(0, 7, 69))
|
|
{
|
|
DPRINT(0, "WARNING: you need comedi driver version 0.7.69 or later\n"
|
|
"for this calibration to work properly\n" );
|
|
}
|
|
init_generic_layout( &layout );
|
|
layout.dac_gain = ni67xx_ao_gain_caldac;
|
|
layout.dac_linearity = ni67xx_ao_linearity_caldac;
|
|
layout.dac_offset = ni67xx_ao_offset_caldac;
|
|
layout.dac_high_observable = ni67xx_ao_high_observable_index;
|
|
layout.dac_mid_observable = ni67xx_ao_mid_observable_index;
|
|
layout.dac_ground_observable = ni67xx_ao_ground_observable_index;
|
|
layout.dac_fractional_tolerance = get_tolerance( setup, setup->da_subdev, 1.0 );
|
|
return generic_cal_ao(setup, &layout);
|
|
}
|
|
|