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analog output calibration for cb_pcidas boards, plus reading of calibration

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voltages from eeprom.
This commit is contained in:
Frank Mori Hess 2003-01-01 22:47:07 +00:00
parent 50ea72bc51
commit 68b2748c32
1 changed files with 324 additions and 33 deletions
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357
comedi_calibrate/cb.c
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@ -52,18 +52,21 @@ int setup_cb_pci_64xx( calibration_setup_t *setup );
int setup_cb_pci_60xx( calibration_setup_t *setup );
int setup_cb_pci_4020( calibration_setup_t *setup );
int setup_cb_pci_1xxx( calibration_setup_t *setup );
int setup_cb_pci_1001( calibration_setup_t *setup );
int setup_cb_pci_1602_16( calibration_setup_t *setup );
int cal_cb_pci_64xx( calibration_setup_t *setup );
int cal_cb_pci_60xx( calibration_setup_t *setup );
int cal_cb_pci_4020( calibration_setup_t *setup );
int cal_cb_pci_1xxx( calibration_setup_t *setup );
int cal_cb_pci_1001( calibration_setup_t *setup );
int cal_cb_pci_1602_16( calibration_setup_t *setup );
int init_observables_64xx( calibration_setup_t *setup );
int init_observables_60xx( calibration_setup_t *setup );
int init_observables_4020( calibration_setup_t *setup );
int init_observables_1xxx( calibration_setup_t *setup );
int init_observables_1001( calibration_setup_t *setup );
int init_observables_1602_16( calibration_setup_t *setup );
int actual_source_voltage( comedi_t *dev, unsigned int subdevice, unsigned int eeprom_channel, float *voltage);
@ -80,7 +83,7 @@ static struct board_struct boards[]={
{ "pci-das6035", STATUS_GUESS, setup_cb_pci_60xx },
{ "pci-das4020/12", STATUS_DONE, setup_cb_pci_4020 },
{ "pci-das1000", STATUS_GUESS, setup_cb_pci_1xxx },
{ "pci-das1001", STATUS_GUESS, setup_cb_pci_1xxx },
{ "pci-das1001", STATUS_GUESS, setup_cb_pci_1001 },
{ "pci-das1002", STATUS_GUESS, setup_cb_pci_1xxx },
{ "pci-das1200", STATUS_DONE, setup_cb_pci_1xxx },
{ "pci-das1200/jr", STATUS_GUESS, setup_cb_pci_1xxx },
@ -104,6 +107,10 @@ enum observables_64xx {
enum observables_1xxx {
OBS_0V_RANGE_10V_BIP_1XXX = 0,
OBS_7V_RANGE_10V_BIP_1XXX,
OBS_DAC0_GROUND_1XXX,
OBS_DAC0_HIGH_1XXX,
OBS_DAC1_GROUND_1XXX,
OBS_DAC1_HIGH_1XXX,
};
enum observables_1602_16 {
@ -173,6 +180,18 @@ int setup_cb_pci_1xxx( calibration_setup_t *setup )
return 0;
}
int setup_cb_pci_1001( calibration_setup_t *setup )
{
static const int caldac_subdev = 4;
static const int calpot_subdev = 5;
init_observables_1001( setup );
setup_caldacs( setup, caldac_subdev );
setup_caldacs( setup, calpot_subdev );
setup->do_cal = cal_cb_pci_1001;
return 0;
}
int setup_cb_pci_1602_16( calibration_setup_t *setup )
{
static const int caldac_subdev = 4;
@ -409,21 +428,18 @@ int init_observables_4020( calibration_setup_t *setup )
int init_observables_1xxx( calibration_setup_t *setup )
{
comedi_insn tmpl;//, po_tmpl;
comedi_insn tmpl, po_tmpl;
observable *o;
#if 0
// XXX need to figure out eeprom map
int retval;
float target;
enum source_eeprom_addr
{
EEPROM_7V_CHAN = 0x30,
EEPROM_3500mV_CHAN = 0x32,
EEPROM_1750mV_CHAN = 0x34,
EEPROM_875mV_CHAN = 0x36,
EEPROM_8600uV_CHAN = 0x38,
EEPROM_7V_CHAN = 0x80,
EEPROM_3500mV_CHAN = 0x84,
EEPROM_1750mV_CHAN = 0x88,
EEPROM_875mV_CHAN = 0x8c,
EEPROM_8600uV_CHAN = 0x90,
};
#endif
enum calibration_source
{
CAL_SRC_GROUND = 0,
@ -435,12 +451,17 @@ int init_observables_1xxx( calibration_setup_t *setup )
CAL_SRC_DAC0 = 6,
CAL_SRC_DAC1 = 7,
};
#if 0
memset( &po_tmpl, 0, sizeof(po_tmpl) );
po_tmpl.insn = INSN_CONFIG;
po_tmpl.n = 2;
po_tmpl.subdev = setup->ad_subdev;
#endif
enum ai_ranges
{
AI_RNG_BIP_10V = 0
};
enum ao_ranges
{
AO_RNG_BIP_10V = 1,
};
setup->n_observables = 0;
memset( &tmpl, 0, sizeof(tmpl) );
tmpl.insn = INSN_READ;
tmpl.n = 1;
@ -450,21 +471,197 @@ int init_observables_1xxx( calibration_setup_t *setup )
o->name = "ground calibration source, 10V bipolar range, ground referenced";
o->reference_source = CAL_SRC_GROUND;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, 0, AREF_GROUND) | CR_ALT_SOURCE | CR_ALT_FILTER;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
o->target = 0.0;
setup->n_observables++;
o = setup->observables + OBS_7V_RANGE_10V_BIP_1XXX;
o->name = "7V calibration source, 10V bipolar range, ground referenced";
o->reference_source = CAL_SRC_7V;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, 0, AREF_GROUND) | CR_ALT_SOURCE | CR_ALT_FILTER;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
o->target = 7.0;
#if 0
retval = actual_source_voltage( setup->dev, setup->eeprom_subdev, EEPROM_7V_CHAN, &target );
if( retval == 0 )
o->target = target;
#endif
setup->n_observables = 2;
setup->n_observables++;
if( setup->da_subdev >= 0 )
{
memset( &po_tmpl, 0, sizeof(po_tmpl) );
po_tmpl.insn = INSN_WRITE;
po_tmpl.n = 1;
po_tmpl.subdev = setup->da_subdev;
o = setup->observables + OBS_DAC0_GROUND_1XXX;
o->name = "DAC0 ground calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC0;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 0, AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC0_GROUND_1XXX, 0.0 );
setup->n_observables++;
o = setup->observables + OBS_DAC0_HIGH_1XXX;
o->name = "DAC0 high calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC0;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 0 , AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC0_HIGH_1XXX, 8.0 );
setup->n_observables++;
o = setup->observables + OBS_DAC1_GROUND_1XXX;
o->name = "DAC1 ground calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC1;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 1, AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC1_GROUND_1XXX, 0.0 );
setup->n_observables++;
o = setup->observables + OBS_DAC1_HIGH_1XXX;
o->name = "DAC1 high calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC1;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 1 , AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC1_HIGH_1XXX, 8.0 );
setup->n_observables++;
}
return 0;
}
int init_observables_1001( calibration_setup_t *setup )
{
comedi_insn tmpl, po_tmpl;
observable *o;
int retval;
float target;
enum source_eeprom_addr
{
EEPROM_7V_CHAN = 0x80,
EEPROM_88600uV_CHAN = 0x88,
EEPROM_875mV_CHAN = 0x8c,
EEPROM_8600uV_CHAN = 0x90,
};
enum calibration_source
{
CAL_SRC_GROUND = 0,
CAL_SRC_7V = 1,
CAL_SRC_88600uV = 3,
CAL_SRC_875mV = 4,
CAL_SRC_8600uV = 5,
CAL_SRC_DAC0 = 6,
CAL_SRC_DAC1 = 7,
};
enum ai_ranges
{
AI_RNG_BIP_10V = 0
};
enum ao_ranges
{
AO_RNG_BIP_10V = 1,
};
setup->n_observables = 0;
memset( &tmpl, 0, sizeof(tmpl) );
tmpl.insn = INSN_READ;
tmpl.n = 1;
tmpl.subdev = setup->ad_subdev;
o = setup->observables + OBS_0V_RANGE_10V_BIP_1XXX;
o->name = "ground calibration source, 10V bipolar range, ground referenced";
o->reference_source = CAL_SRC_GROUND;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
o->target = 0.0;
setup->n_observables++;
o = setup->observables + OBS_7V_RANGE_10V_BIP_1XXX;
o->name = "7V calibration source, 10V bipolar range, ground referenced";
o->reference_source = CAL_SRC_7V;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
o->target = 7.0;
retval = actual_source_voltage( setup->dev, setup->eeprom_subdev, EEPROM_7V_CHAN, &target );
if( retval == 0 )
o->target = target;
setup->n_observables++;
if( setup->da_subdev >= 0 )
{
memset( &po_tmpl, 0, sizeof(po_tmpl) );
po_tmpl.insn = INSN_WRITE;
po_tmpl.n = 1;
po_tmpl.subdev = setup->da_subdev;
o = setup->observables + OBS_DAC0_GROUND_1XXX;
o->name = "DAC0 ground calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC0;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 0, AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC0_GROUND_1XXX, 0.0 );
setup->n_observables++;
o = setup->observables + OBS_DAC0_HIGH_1XXX;
o->name = "DAC0 high calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC0;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 0 , AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC0_HIGH_1XXX, 8.0 );
setup->n_observables++;
o = setup->observables + OBS_DAC1_GROUND_1XXX;
o->name = "DAC1 ground calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC1;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 1, AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC1_GROUND_1XXX, 0.0 );
setup->n_observables++;
o = setup->observables + OBS_DAC1_HIGH_1XXX;
o->name = "DAC1 high calibration source, 10V bipolar input range";
o->reference_source = CAL_SRC_DAC1;
o->preobserve_insn = po_tmpl;
o->preobserve_insn.chanspec = CR_PACK( 1 , AO_RNG_BIP_10V, AREF_GROUND );
o->preobserve_insn.data = o->preobserve_data;
o->observe_insn = tmpl;
o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
CR_ALT_SOURCE | CR_ALT_FILTER;
set_target( setup, OBS_DAC1_HIGH_1XXX, 8.0 );
setup->n_observables++;
}
return 0;
}
@ -493,7 +690,7 @@ int init_observables_1602_16( calibration_setup_t *setup )
CAL_SRC_3500mV = 2,
CAL_SRC_1750mV = 3,
CAL_SRC_875mV = 4,
CAL_SRC_8600uV = 5,
CAL_SRC_minus_10V = 5,
CAL_SRC_DAC0 = 6,
CAL_SRC_DAC1 = 7,
};
@ -650,6 +847,55 @@ int cal_cb_pci_1xxx( calibration_setup_t *setup )
cal1( setup, OBS_7V_RANGE_10V_BIP_1XXX, ADC_GAIN );
cal1_fine( setup, OBS_7V_RANGE_10V_BIP_1XXX, ADC_GAIN );
if( setup->da_subdev >= 0 )
{
cal1( setup, OBS_DAC0_GROUND_1XXX, DAC0_OFFSET );
cal1( setup, OBS_DAC0_HIGH_1XXX, DAC0_GAIN_COARSE );
cal1( setup, OBS_DAC0_HIGH_1XXX, DAC0_GAIN_FINE );
cal1( setup, OBS_DAC1_GROUND_1XXX, DAC1_OFFSET );
cal1( setup, OBS_DAC1_HIGH_1XXX, DAC1_GAIN_COARSE );
cal1( setup, OBS_DAC1_HIGH_1XXX, DAC1_GAIN_FINE );
}
return 0;
}
int cal_cb_pci_1001( calibration_setup_t *setup )
{
enum cal_knobs_1xxx
{
DAC0_GAIN_FINE = 0,
DAC0_GAIN_COARSE,
DAC0_OFFSET,
DAC1_OFFSET,
DAC1_GAIN_FINE,
DAC1_GAIN_COARSE,
ADC_OFFSET_COARSE,
ADC_OFFSET_FINE,
ADC_GAIN,
};
cal1( setup, OBS_0V_RANGE_10V_BIP_1XXX, ADC_OFFSET_COARSE );
cal1_fine( setup, OBS_0V_RANGE_10V_BIP_1XXX, ADC_OFFSET_COARSE );
cal1( setup, OBS_0V_RANGE_10V_BIP_1XXX, ADC_OFFSET_FINE );
cal1_fine( setup, OBS_0V_RANGE_10V_BIP_1XXX, ADC_OFFSET_FINE );
cal1( setup, OBS_7V_RANGE_10V_BIP_1XXX, ADC_GAIN );
cal1_fine( setup, OBS_7V_RANGE_10V_BIP_1XXX, ADC_GAIN );
if( setup->da_subdev >= 0 )
{
cal1( setup, OBS_DAC0_GROUND_1XXX, DAC0_OFFSET );
cal1( setup, OBS_DAC0_HIGH_1XXX, DAC0_GAIN_COARSE );
cal1( setup, OBS_DAC0_HIGH_1XXX, DAC0_GAIN_FINE );
cal1( setup, OBS_DAC1_GROUND_1XXX, DAC1_OFFSET );
cal1( setup, OBS_DAC1_HIGH_1XXX, DAC1_GAIN_COARSE );
cal1( setup, OBS_DAC1_HIGH_1XXX, DAC1_GAIN_FINE );
}
return 0;
}
@ -683,7 +929,7 @@ int cal_cb_pci_1602_16( calibration_setup_t *setup )
}
// converts calibration source voltages from two 16 bit eeprom values to a floating point value
float eeprom_to_source(uint16_t ls_word, uint16_t ms_word)
float eeprom16_to_source( uint16_t *data )
{
union translator
{
@ -693,7 +939,26 @@ float eeprom_to_source(uint16_t ls_word, uint16_t ms_word)
union translator my_translator;
my_translator.bits = ( ls_word & 0xffff ) | ( ( ms_word << 16 ) & 0xffff0000 );
my_translator.bits = ( data[ 0 ] & 0xffff ) | ( ( data[ 1 ] << 16 ) & 0xffff0000 );
return my_translator.value;
}
float eeprom8_to_source( uint8_t *data )
{
union translator
{
uint32_t bits;
float value;
};
union translator my_translator;
int i;
my_translator.bits = 0;
for( i = 0; i < 4; i++ )
{
my_translator.bits |= ( data[ i ] & 0xffff ) << ( 8 * i );
}
return my_translator.value;
}
@ -701,22 +966,48 @@ float eeprom_to_source(uint16_t ls_word, uint16_t ms_word)
int actual_source_voltage( comedi_t *dev, unsigned int subdevice, unsigned int eeprom_channel, float *voltage)
{
int retval;
uint16_t word[2];
unsigned int i;
lsampl_t data;
int max_data;
for( i = 0; i < 2; i++ )
max_data = comedi_get_maxdata( dev, subdevice, eeprom_channel );
if( max_data == 0xffff )
{
retval = comedi_data_read( dev, subdevice, eeprom_channel + i, 0, 0, &data );
if( retval < 0 )
uint16_t word[ 2 ];
for( i = 0; i < 2; i++ )
{
perror( "actual_source_voltage()" );
return retval;
retval = comedi_data_read( dev, subdevice, eeprom_channel + i, 0, 0, &data );
if( retval < 0 )
{
perror( "actual_source_voltage()" );
return retval;
}
word[ i ] = data;
}
word[ i ] = data;
*voltage = eeprom16_to_source( word );
}else if( max_data == 0xff )
{
uint8_t byte[ 4 ];
for( i = 0; i < 4; i++ )
{
retval = comedi_data_read( dev, subdevice, eeprom_channel + i, 0, 0, &data );
if( retval < 0 )
{
perror( "actual_source_voltage()" );
return retval;
}
byte[ i ] = data;
}
*voltage = eeprom8_to_source( byte );
}else
{
perror( "actual_source_voltage(), maxdata invalid" );
return -1;
}
*voltage = eeprom_to_source( word[0], word[1] );
DPRINT(0, "eeprom ch %i,%i give calibration source of %gV\n", eeprom_channel, eeprom_channel + 1, *voltage);
DPRINT(0, "eeprom ch %i gives calibration source of %gV\n", eeprom_channel, *voltage);
return 0;
}