added multiple range calibration for measurement computing pci-das1xxx
cards
This commit is contained in:
Frank Mori Hess
parent
3bf61fbe44
commit
bada1b597a
1 changed files with 372 additions and 114 deletions
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@ -84,6 +84,59 @@ enum observables_1602_16 {
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OBS_7V_RANGE_10V_BIP_1602_16,
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};
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enum calibration_source_1xxx
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{
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CS_1XXX_GROUND = 0,
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CS_1XXX_7V = 1,
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CS_1XXX_3500mV = 2,
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CS_1XXX_1750mV = 3,
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CS_1XXX_875mV = 4,
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CS_1XXX_8600uV = 5,
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CS_1XXX_DAC0 = 6,
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CS_1XXX_DAC1 = 7,
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};
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static inline int CS_1XXX_DAC( unsigned int channel )
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{
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if( channel )
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return CS_1XXX_DAC1;
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else
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return CS_1XXX_DAC0;
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}
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enum cal_knobs_1xxx
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{
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DAC0_GAIN_FINE_1XXX = 0,
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DAC0_GAIN_COARSE_1XXX = 1,
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DAC0_OFFSET_1XXX = 2,
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DAC1_OFFSET_1XXX = 3,
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DAC1_GAIN_FINE_1XXX = 4,
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DAC1_GAIN_COARSE_1XXX = 5,
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ADC_OFFSET_COARSE_1XXX = 6,
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ADC_OFFSET_FINE_1XXX = 7,
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ADC_GAIN_1XXX = 8,
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};
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static inline unsigned int DAC_OFFSET_1XXX( unsigned int channel )
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{
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if( channel )
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return DAC1_OFFSET_1XXX;
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else
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return DAC0_OFFSET_1XXX;
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}
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static inline unsigned int DAC_GAIN_FINE_1XXX( unsigned int channel )
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{
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if( channel )
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return DAC1_GAIN_FINE_1XXX;
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else
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return DAC0_GAIN_FINE_1XXX;
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}
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static inline unsigned int DAC_GAIN_COARSE_1XXX( unsigned int channel )
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{
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if( channel )
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return DAC1_GAIN_COARSE_1XXX;
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else
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return DAC0_GAIN_COARSE_1XXX;
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}
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int cb_setup( calibration_setup_t *setup, const char *device_name )
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{
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unsigned int i;
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@ -140,12 +193,54 @@ static int setup_cb_pci_1602_16( calibration_setup_t *setup )
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return 0;
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}
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static int init_observables_1xxx( calibration_setup_t *setup )
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static unsigned int ai_low_observable_1xxx( unsigned int range )
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{
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return 2 * range;
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}
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static unsigned int ai_high_observable_1xxx( unsigned int range )
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{
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return ai_low_observable_1xxx( range ) + 1;
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}
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static unsigned int ao_low_observable_1xxx( calibration_setup_t *setup,
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unsigned int channel, unsigned int range )
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{
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int num_ai_ranges, num_ao_ranges;
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num_ai_ranges = comedi_get_n_ranges( setup->dev, setup->ad_subdev, 0 );
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assert( num_ai_ranges > 0 );
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num_ao_ranges = comedi_get_n_ranges( setup->dev, setup->da_subdev, 0 );
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assert( num_ao_ranges > 0 );
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return 2 * num_ai_ranges + 2 * num_ao_ranges * channel + 2 * range;
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}
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static unsigned int ao_high_observable_1xxx( calibration_setup_t *setup,
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unsigned int channel, unsigned int range )
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{
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return ao_low_observable_1xxx( setup, channel, range ) + 1;
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}
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static double ai_low_target_1xxx( calibration_setup_t *setup,
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unsigned int range_index )
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{
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comedi_range *range;
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int max_data;
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range = comedi_get_range( setup->dev, setup->ad_subdev, 0, range_index );
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assert( range != NULL );
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max_data = comedi_get_maxdata( setup->dev, setup->ad_subdev, 0 );
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assert( max_data != 0 );
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if( range->min < -0.0001 )
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return 0.0;
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else // return half a bit above zero for unipolar ranges
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return comedi_to_phys( 1, range, max_data ) / 2.0;
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}
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static int source_eeprom_addr_1xxx( calibration_setup_t *setup, unsigned int range_index )
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{
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comedi_insn tmpl, po_tmpl;
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observable *o;
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int retval;
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float target;
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enum source_eeprom_addr
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{
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EEPROM_7V_CHAN = 0x80,
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@ -154,25 +249,68 @@ static int init_observables_1xxx( calibration_setup_t *setup )
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EEPROM_875mV_CHAN = 0x8c,
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EEPROM_8600uV_CHAN = 0x90,
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};
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enum calibration_source
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{
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CAL_SRC_GROUND = 0,
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CAL_SRC_7V = 1,
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CAL_SRC_3500mV = 2,
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CAL_SRC_1750mV = 3,
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CAL_SRC_875mV = 4,
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CAL_SRC_8600uV = 5,
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CAL_SRC_DAC0 = 6,
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CAL_SRC_DAC1 = 7,
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};
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enum ai_ranges
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{
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AI_RNG_BIP_10V = 0
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};
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enum ao_ranges
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{
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AO_RNG_BIP_10V = 1,
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};
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comedi_range *range;
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range = comedi_get_range( setup->dev, setup->ad_subdev, 0, range_index );
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if( range == NULL ) return -1;
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if( range->max > 7.0 )
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return EEPROM_7V_CHAN;
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else if( range->max > 3.5 )
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return EEPROM_3500mV_CHAN;
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else if( range->max > 1.750 )
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return EEPROM_1750mV_CHAN;
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else if( range->max > 0.875 )
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return EEPROM_875mV_CHAN;
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else if( range->max > 0.0086 )
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return EEPROM_8600uV_CHAN;
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return -1;
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}
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static int ai_high_cal_source_1xxx( calibration_setup_t *setup, unsigned int range_index )
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{
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comedi_range *range;
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range = comedi_get_range( setup->dev, setup->ad_subdev, 0, range_index );
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if( range == NULL ) return -1;
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if( range->max > 7.0 )
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return CS_1XXX_7V;
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else if( range->max > 3.5 )
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return CS_1XXX_3500mV;
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else if( range->max > 1.750 )
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return CS_1XXX_1750mV;
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else if( range->max > 0.875 )
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return CS_1XXX_875mV;
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else if( range->max > 0.0086 )
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return CS_1XXX_8600uV;
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return -1;
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}
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static int ao_set_high_target_1xxx( calibration_setup_t *setup, unsigned int obs,
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unsigned int range_index )
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{
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double target;
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comedi_range *range;
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range = comedi_get_range( setup->dev, setup->da_subdev, 0, range_index );
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if( range == NULL ) return -1;
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target = range->max * 0.9;
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set_target( setup, obs, target );
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return 0;
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}
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static int init_observables_1xxx( calibration_setup_t *setup )
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{
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comedi_insn tmpl, po_tmpl;
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observable *o;
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int retval, range, num_ai_ranges, num_ao_ranges,
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channel, num_channels;
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float target;
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int ai_for_ao_range;
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setup->n_observables = 0;
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@ -181,81 +319,89 @@ static int init_observables_1xxx( calibration_setup_t *setup )
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tmpl.n = 1;
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tmpl.subdev = setup->ad_subdev;
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o = setup->observables + OBS_0V_RANGE_10V_BIP_1XXX;
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o->name = "ground calibration source, 10V bipolar range, ground referenced";
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o->reference_source = CAL_SRC_GROUND;
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o->observe_insn = tmpl;
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o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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o->target = 0.0;
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setup->n_observables++;
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num_ai_ranges = comedi_get_n_ranges( setup->dev, setup->ad_subdev, 0 );
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if( num_ai_ranges < 0 ) return -1;
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o = setup->observables + OBS_7V_RANGE_10V_BIP_1XXX;
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o->name = "7V calibration source, 10V bipolar range, ground referenced";
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o->reference_source = CAL_SRC_7V;
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o->observe_insn = tmpl;
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o->observe_insn.chanspec = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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o->target = 7.0;
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retval = cb_actual_source_voltage( setup->dev, setup->eeprom_subdev, EEPROM_7V_CHAN, &target );
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if( retval == 0 )
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for( range = 0; range < num_ai_ranges; range++ )
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{
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o = setup->observables + ai_low_observable_1xxx( range );
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o->reference_source = CS_1XXX_GROUND;
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assert( o->name == NULL );
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asprintf( &o->name, "calibration source %i, range %i, ground referenced",
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o->reference_source, range );
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o->observe_insn = tmpl;
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o->observe_insn.chanspec = CR_PACK( 0, range, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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o->target = ai_low_target_1xxx( setup, range );
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setup->n_observables++;
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o = setup->observables + ai_high_observable_1xxx( range );;
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retval = ai_high_cal_source_1xxx( setup, range );
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if( retval < 0 ) return -1;
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o->reference_source = retval;
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assert( o->name == NULL );
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asprintf( &o->name, "calibration source %i, range %i, ground referenced",
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o->reference_source, range );
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o->observe_insn = tmpl;
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o->observe_insn.chanspec = CR_PACK( 0, range, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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retval = cb_actual_source_voltage( setup->dev, setup->eeprom_subdev,
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source_eeprom_addr_1xxx( setup, range ), &target );
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if( retval < 0 ) return -1;
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o->target = target;
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setup->n_observables++;
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setup->n_observables++;
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}
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if( setup->da_subdev >= 0 )
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{
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num_channels = comedi_get_n_channels( setup->dev, setup->da_subdev );
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if( num_channels < 0 ) return -1;
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num_ao_ranges = comedi_get_n_ranges( setup->dev, setup->da_subdev, 0 );
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if( num_ao_ranges < 0 ) return -1;
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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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o = setup->observables + OBS_DAC0_GROUND_1XXX;
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o->name = "DAC0 ground calibration source, 10V bipolar input range";
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o->reference_source = CAL_SRC_DAC0;
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK( 0, AO_RNG_BIP_10V, AREF_GROUND );
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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 = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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set_target( setup, OBS_DAC0_GROUND_1XXX, 0.0 );
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setup->n_observables++;
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ai_for_ao_range = get_bipolar_lowgain( setup->dev, setup->ad_subdev );
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if( ai_for_ao_range < 0 ) return -1;
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o = setup->observables + OBS_DAC0_HIGH_1XXX;
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o->name = "DAC0 high calibration source, 10V bipolar input range";
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o->reference_source = CAL_SRC_DAC0;
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK( 0 , AO_RNG_BIP_10V, AREF_GROUND );
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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 = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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set_target( setup, OBS_DAC0_HIGH_1XXX, 8.0 );
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setup->n_observables++;
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for( range = 0; range < num_ao_ranges; range++ )
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{
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for( channel = 0; channel < num_channels; channel++ )
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{
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o = setup->observables + ao_low_observable_1xxx( setup, channel, range );
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o->reference_source = CS_1XXX_DAC( channel );
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assert( o->name == NULL );
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asprintf( &o->name, "DAC ground calibration source, ch %i, range %i",
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channel, range );
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK( channel, range, AREF_GROUND );
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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 = CR_PACK( 0, ai_for_ao_range, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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set_target( setup, ao_low_observable_1xxx( setup, channel, range ), 0.0 );
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setup->n_observables++;
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o = setup->observables + OBS_DAC1_GROUND_1XXX;
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o->name = "DAC1 ground calibration source, 10V bipolar input range";
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o->reference_source = CAL_SRC_DAC1;
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK( 1, AO_RNG_BIP_10V, AREF_GROUND );
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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 = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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set_target( setup, OBS_DAC1_GROUND_1XXX, 0.0 );
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setup->n_observables++;
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o = setup->observables + OBS_DAC1_HIGH_1XXX;
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o->name = "DAC1 high calibration source, 10V bipolar input range";
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o->reference_source = CAL_SRC_DAC1;
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK( 1 , AO_RNG_BIP_10V, AREF_GROUND );
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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 = CR_PACK( 0, AI_RNG_BIP_10V, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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set_target( setup, OBS_DAC1_HIGH_1XXX, 8.0 );
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setup->n_observables++;
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o = setup->observables + ao_high_observable_1xxx( setup, channel, range );
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o->reference_source = CS_1XXX_DAC( channel );
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assert( o->name == NULL );
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asprintf( &o->name, "DAC high calibration source, ch %i, range %i", channel,
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range );
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o->preobserve_insn = po_tmpl;
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o->preobserve_insn.chanspec = CR_PACK( channel , range, AREF_GROUND );
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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 = CR_PACK( 0, ai_for_ao_range, AREF_GROUND) |
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CR_ALT_SOURCE | CR_ALT_FILTER;
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ao_set_high_target_1xxx( setup, ao_high_observable_1xxx( setup, channel, range ),
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range );
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setup->n_observables++;
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}
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}
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}
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return 0;
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@ -442,42 +588,153 @@ static int init_observables_1602_16( calibration_setup_t *setup )
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return 0;
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}
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static void prep_adc_caldacs_1xxx( calibration_setup_t *setup,
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unsigned int range )
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{
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int retval;
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if( setup->do_reset )
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{
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reset_caldac( setup, ADC_OFFSET_COARSE_1XXX );
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reset_caldac( setup, ADC_OFFSET_FINE_1XXX );
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reset_caldac( setup, ADC_GAIN_1XXX );
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}else
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{
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retval = comedi_apply_calibration( setup->dev, setup->ad_subdev,
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0, range, AREF_GROUND, setup->cal_save_file_path);
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if( retval < 0 )
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{
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reset_caldac( setup, ADC_OFFSET_COARSE_1XXX );
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reset_caldac( setup, ADC_OFFSET_FINE_1XXX );
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reset_caldac( setup, ADC_GAIN_1XXX );
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}
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}
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}
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static void prep_dac_caldacs_1xxx( calibration_setup_t *setup,
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unsigned int channel, unsigned int range )
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{
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int retval;
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if( setup->do_reset )
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{
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reset_caldac( setup, DAC_OFFSET_1XXX( channel ) );
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reset_caldac( setup, DAC_GAIN_FINE_1XXX( channel ) );
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reset_caldac( setup, DAC_GAIN_COARSE_1XXX( channel ) );
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}else
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{
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retval = comedi_apply_calibration( setup->dev, setup->da_subdev,
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channel, range, AREF_GROUND, setup->cal_save_file_path);
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if( retval < 0 )
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{
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reset_caldac( setup, DAC_OFFSET_1XXX( channel ) );
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reset_caldac( setup, DAC_GAIN_FINE_1XXX( channel ) );
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reset_caldac( setup, DAC_GAIN_COARSE_1XXX( channel ) );
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}
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}
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}
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static int prep_ai_for_ao_1xxx( calibration_setup_t *setup,
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saved_calibration_t *saved_cals, unsigned int ao_range )
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{
|
||||
int retval, ai_range, i, num_caldacs;
|
||||
caldac_t *dacs;
|
||||
|
||||
retval = ao_low_observable_1xxx( setup, 0, ao_range );
|
||||
if( retval < 0 ) return -1;
|
||||
ai_range = CR_RANGE( setup->observables[ retval ].observe_insn.chanspec );
|
||||
|
||||
dacs = saved_cals[ ai_range ].caldacs;
|
||||
num_caldacs = saved_cals[ ai_range ].caldacs_length;
|
||||
for( i = 0; i < num_caldacs; i++ )
|
||||
{
|
||||
retval = comedi_data_write( setup->dev, dacs[ i ].subdev, dacs[ i ].chan,
|
||||
0, 0, dacs[ i ].current );
|
||||
assert( retval >= 0 );
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cal_cb_pci_1xxx( 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,
|
||||
};
|
||||
saved_calibration_t *saved_cals, *current_cal;
|
||||
int range, num_ai_ranges, num_ao_ranges, num_calibrations,
|
||||
retval, channel, i;
|
||||
|
||||
cal1( setup, OBS_0V_RANGE_10V_BIP_1XXX, ADC_OFFSET_COARSE );
|
||||
cal1_fine( setup, OBS_0V_RANGE_10V_BIP_1XXX, ADC_OFFSET_COARSE );
|
||||
comedi_set_global_oor_behavior( COMEDI_OOR_NUMBER );
|
||||
|
||||
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 );
|
||||
num_ai_ranges = comedi_get_n_ranges( setup->dev, setup->ad_subdev, 0 );
|
||||
if( num_ai_ranges < 1 ) return -1;
|
||||
|
||||
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 );
|
||||
num_ao_ranges = comedi_get_n_ranges( setup->dev, setup->da_subdev, 0 );
|
||||
if( num_ai_ranges < 1 ) return -1;
|
||||
}else
|
||||
num_ao_ranges = 0;
|
||||
|
||||
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 );
|
||||
num_calibrations = num_ai_ranges + 2 * num_ao_ranges;
|
||||
|
||||
saved_cals = malloc( num_calibrations * sizeof( saved_calibration_t ) );
|
||||
if( saved_cals == NULL ) return -1;
|
||||
memset( saved_cals, 0, num_calibrations * sizeof( saved_calibration_t ) );
|
||||
|
||||
current_cal = saved_cals;
|
||||
|
||||
for( range = 0; range < num_ai_ranges; range++ )
|
||||
{
|
||||
prep_adc_caldacs_1xxx( setup, range );
|
||||
|
||||
cal_binary( setup, ai_low_observable_1xxx( range ), ADC_OFFSET_COARSE_1XXX );
|
||||
cal_binary( setup, ai_low_observable_1xxx( range ), ADC_OFFSET_FINE_1XXX );
|
||||
cal_binary( setup, ai_high_observable_1xxx( range ), ADC_GAIN_1XXX );
|
||||
|
||||
current_cal->subdevice = setup->ad_subdev;
|
||||
sc_push_caldac( current_cal, setup->caldacs[ ADC_OFFSET_COARSE_1XXX ] );
|
||||
sc_push_caldac( current_cal, setup->caldacs[ ADC_OFFSET_FINE_1XXX ] );
|
||||
sc_push_caldac( current_cal, setup->caldacs[ ADC_GAIN_1XXX ] );
|
||||
sc_push_channel( current_cal, SC_ALL_CHANNELS );
|
||||
sc_push_range( current_cal, range );
|
||||
sc_push_aref( current_cal, SC_ALL_AREFS );
|
||||
|
||||
current_cal++;
|
||||
}
|
||||
|
||||
return 0;
|
||||
if( setup->da_subdev >= 0 )
|
||||
{
|
||||
for( range = 0; range < num_ao_ranges; range++ )
|
||||
{
|
||||
for( channel = 0; channel < 2; channel++ )
|
||||
{
|
||||
prep_ai_for_ao_1xxx( setup, saved_cals, range );
|
||||
|
||||
prep_dac_caldacs_1xxx( setup, channel, range );
|
||||
|
||||
cal_binary( setup, ao_low_observable_1xxx( setup, channel, range ),
|
||||
DAC_OFFSET_1XXX( channel ) );
|
||||
cal_binary( setup, ao_high_observable_1xxx( setup, channel, range ),
|
||||
DAC_GAIN_COARSE_1XXX( channel ) );
|
||||
cal_binary( setup, ao_high_observable_1xxx( setup, channel, range ),
|
||||
DAC_GAIN_FINE_1XXX( channel ) );
|
||||
|
||||
current_cal->subdevice = setup->da_subdev;
|
||||
sc_push_caldac( current_cal, setup->caldacs[ DAC_OFFSET_1XXX( channel ) ] );
|
||||
sc_push_caldac( current_cal, setup->caldacs[ DAC_GAIN_COARSE_1XXX( channel ) ] );
|
||||
sc_push_caldac( current_cal, setup->caldacs[ DAC_GAIN_FINE_1XXX( channel ) ] );
|
||||
sc_push_channel( current_cal, channel );
|
||||
sc_push_range( current_cal, range );
|
||||
sc_push_aref( current_cal, SC_ALL_AREFS );
|
||||
|
||||
current_cal++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
retval = write_calibration_file( setup, saved_cals, num_calibrations );
|
||||
for( i = 0; i < num_calibrations; i++ )
|
||||
clear_saved_calibration( &saved_cals[ i ] );
|
||||
free( saved_cals );
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int cal_cb_pci_1001( calibration_setup_t *setup )
|
||||
|
|
@ -623,7 +880,8 @@ int cb_actual_source_voltage( comedi_t *dev, unsigned int subdevice, unsigned in
|
|||
*voltage = eeprom8_to_source( byte );
|
||||
}else
|
||||
{
|
||||
fprintf( stderr, "actual_source_voltage(), maxdata = 0x%x invalid\n", max_data );
|
||||
fprintf( stderr, "%s: maxdata = 0x%x invalid\n",
|
||||
__FUNCTION__, max_data );
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue