static int ni_setup_board( calibration_setup_t *setup , const char *device_name );
static void ni_setup_observables( calibration_setup_t *setup );
static void ni_setup_observables_611x( calibration_setup_t *setup );
+static void ni67xx_setup_observables( calibration_setup_t *setup );
static int cal_ni_at_mio_16e_2(calibration_setup_t *setup);
static int cal_ni_daqcard_ai_16xe_50(calibration_setup_t *setup);
static int cal_ni_at_mio_16e_1(calibration_setup_t *setup);
static int cal_ni_pci_mio_16e_1(calibration_setup_t *setup);
+static int cal_ni_pci_6014(calibration_setup_t *setup);
static int cal_ni_pci_6024e(calibration_setup_t *setup);
static int cal_ni_pci_6025e(calibration_setup_t *setup);
static int cal_ni_pci_6032e(calibration_setup_t *setup);
static int cal_ni_pci_mio_16e_4(calibration_setup_t *setup);
static int cal_ni_daqcard_6062e(calibration_setup_t *setup);
static int cal_ni_daqcard_6024e(calibration_setup_t *setup);
+static int cal_ni_daqcard_6036e(calibration_setup_t *setup);
+static int cal_ni_pci_6711(calibration_setup_t *setup);
static double ni_get_reference( calibration_setup_t *setup, int lsb_loc,int msb_loc);
static struct board_struct boards[]={
{ "at-ai-16xe-10", STATUS_UNKNOWN, NULL, ni_setup_observables, 0x1b7, 0x1b8 },
{ "at-mio-16de-10", STATUS_UNKNOWN, NULL, ni_setup_observables, 0x1a7, 0x1a8 },
- { "at-mio-16e-1", STATUS_SOME, cal_ni_at_mio_16e_1, ni_setup_observables, 0x1a9, 0x1aa },
+ { "at-mio-16e-1", STATUS_DONE, cal_ni_at_mio_16e_1, ni_setup_observables, 0x1a9, 0x1aa },
{ "at-mio-16e-2", STATUS_DONE, cal_ni_at_mio_16e_2, ni_setup_observables, 0x1a9, 0x1aa },
- { "at-mio-16e-10", STATUS_GUESS, cal_ni_at_mio_16e_10, ni_setup_observables, 0x1a7, 0x1a8 },
+ { "at-mio-16e-10", STATUS_DONE, cal_ni_at_mio_16e_10, ni_setup_observables, 0x1a7, 0x1a8 },
{ "at-mio-16xe-10", STATUS_UNKNOWN, NULL, ni_setup_observables, 0x1b7, 0x1b8 },
{ "at-mio-16xe-50", STATUS_SOME, cal_ni_at_mio_16xe_50, ni_setup_observables, 0x1b5, 0x1b6 },
{ "DAQCard-ai-16e-4", STATUS_DONE, cal_ni_daqcard_ai_16e_4, ni_setup_observables, 0x1b5, 0x1b6 },
{ "DAQCard-ai-16xe-50", STATUS_DONE, cal_ni_daqcard_ai_16xe_50, ni_setup_observables, 0x1be, 0x1bf },
{ "DAQCard-6024E", STATUS_SOME, cal_ni_daqcard_6024e, ni_setup_observables, -1, -1 },
+ { "DAQCard-6036E", STATUS_DONE, cal_ni_daqcard_6036e, ni_setup_observables, 0x1ab, 0x1ac },
{ "DAQCard-6062E", STATUS_DONE, cal_ni_daqcard_6062e, ni_setup_observables, 0x1a9, 0x1aa },
{ "pci-mio-16e-1", STATUS_DONE, cal_ni_pci_mio_16e_1, ni_setup_observables, 0x1a9, 0x1aa },
{ "pci-mio-16e-4", STATUS_SOME, cal_ni_pci_mio_16e_4, ni_setup_observables, 0x1a9, 0x1aa },
{ "pci-mio-16xe-10", STATUS_DONE, cal_ni_pci_mio_16xe_10, ni_setup_observables, 0x1ae, 0x1af },
{ "pci-mio-16xe-50", STATUS_SOME, cal_ni_pci_mio_16xe_50, ni_setup_observables, 0x1b5, 0x1b6 },
+ { "pci-6014", STATUS_SOME, cal_ni_pci_6014, ni_setup_observables, 0x1ab, 0x1ac },
{ "pci-6023e", STATUS_DONE, cal_ni_pci_6023e, ni_setup_observables, 0x1bb, 0x1bc },
{ "pci-6024e", STATUS_SOME, cal_ni_pci_6024e, ni_setup_observables, 0x1af, 0x1b0 },
{ "pci-6025e", STATUS_SOME, cal_ni_pci_6025e, ni_setup_observables, 0x1af, 0x1b0 },
- { "pci-6031e", STATUS_SOME, cal_ni_pci_mio_16xe_10, ni_setup_observables, 0x1ae, 0x1af },
+ { "pci-6031e", STATUS_DONE, cal_ni_pci_mio_16xe_10, ni_setup_observables, 0x1ae, 0x1af },
{ "pci-6032e", STATUS_DONE, cal_ni_pci_6032e, ni_setup_observables, 0x1ae, 0x1af },
- { "pci-6033e", STATUS_UNKNOWN, NULL, ni_setup_observables, 0x1ae, 0x1af },
+ { "pci-6033e", STATUS_DONE, cal_ni_pci_6032e, ni_setup_observables, 0x1b7, 0x1b8 },
{ "pci-6034e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
{ "pci-6035e", STATUS_DONE, cal_ni_pci_6035e, ni_setup_observables, 0x1af, 0x1b0 },
{ "pci-6036e", STATUS_DONE, cal_ni_pci_6036e, ni_setup_observables, 0x1ab, 0x1ac },
- { "pci-6052e", STATUS_GUESS, cal_ni_pci_6052e, ni_setup_observables, 0x19f, 0x1a0 },
+ { "pci-6052e", STATUS_DONE, cal_ni_pci_6052e, ni_setup_observables, 0x19f, 0x1a0 },
{ "pci-6071e", STATUS_DONE, cal_ni_pci_6071e, ni_setup_observables, 0x1a9, 0x1aa },
{ "pci-6110", STATUS_DONE, cal_ni_pci_611x, ni_setup_observables_611x, 0x1d4, 0x1d5 },
{ "pci-6111", STATUS_DONE, cal_ni_pci_611x, ni_setup_observables_611x, 0x1d4, 0x1d5 },
{ "pxi-6052e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
{ "pxi-6070e", STATUS_UNKNOWN, NULL, ni_setup_observables, -1, -1 },
{ "pxi-6071e", STATUS_GUESS, cal_ni_pxi_6071e, ni_setup_observables, -1, -1 },
+ { "pci-6711", STATUS_DONE, cal_ni_pci_6711, ni67xx_setup_observables, 0x1d4, 0x1d5},
+ { "pci-6713", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
+ { "pci-6731", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
+ { "pci-6733", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
+ { "pxi-6711", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
+ { "pxi-6713", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
+ { "pxi-6731", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
+ { "pxi-6733", STATUS_GUESS, cal_ni_pci_6711, ni67xx_setup_observables, -1, -1},
#if 0
{ "at-mio-64e-3", cal_ni_16e_1 },
- { "pci-6711", cal_ni_unknown },
- { "pci-6713", cal_ni_unknown },
#endif
};
#define n_boards (sizeof(boards)/sizeof(boards[0]))
int adc_postgain_offset_fine;
int adc_gain_fine;
int adc_unip_offset;
+ int adc_unip_offset_fine;
int dac_offset[ 2 ];
+ int dac_offset_fine[ 2 ];
int dac_gain[ 2 ];
int dac_gain_fine[ 2 ];
int dac_linearity[ 2 ];
layout->adc_postgain_offset = -1;
layout->adc_gain = -1;
layout->adc_unip_offset = -1;
+ layout->adc_unip_offset_fine = -1;
layout->adc_pregain_offset_fine = -1;
layout->adc_postgain_offset_fine = -1;
layout->adc_gain_fine = -1;
for( i = 0; i < 2; i++ )
{
layout->dac_offset[ i ] = -1;
+ layout->dac_offset_fine[ i ] = -1;
layout->dac_gain[ i ] = -1;
layout->dac_gain_fine[ i ] = -1;
layout->dac_linearity[ i ] = -1;
int ao_unipolar_lowgain;
ai_bipolar_lowgain = get_bipolar_lowgain( setup->dev, setup->ad_subdev);
+ assert(ai_bipolar_lowgain >= 0);
ao_bipolar_lowgain = get_bipolar_lowgain( setup->dev, setup->da_subdev);
+ assert(ao_bipolar_lowgain >= 0);
ao_unipolar_lowgain = get_unipolar_lowgain( setup->dev, setup->da_subdev);
memset(&tmpl,0,sizeof(tmpl));
setup->n_observables = num_ao_observables_611x + 2 * num_ai_ranges * num_ai_channels;
}
-static int cal_ni_at_mio_16e_2(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_offset[ 1 ] = 8;
- layout.dac_gain[ 1 ] = 9;
-
- return cal_ni_generic( setup, &layout );
-}
-
static int cal_ni_daqcard_ai_16xe_50(calibration_setup_t *setup)
{
ni_caldac_layout_t layout;
static int cal_ni_at_mio_16e_1(calibration_setup_t *setup)
{
- return cal_ni_at_mio_16e_2( 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)
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;
static int cal_ni_at_mio_16e_10(calibration_setup_t *setup)
{
- // 16e-10 (old)
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 = 10;
- layout.adc_pregain_offset_fine = 0;
- layout.adc_postgain_offset = 1;
- layout.adc_gain = 3;
- layout.adc_unip_offset = 2;
- layout.dac_offset[ 0 ] = 5; /* guess */
- layout.dac_gain[ 0 ] = 6; /* guess */
- layout.dac_offset[ 1 ] = 8; /* guess */
- layout.dac_gain[ 1 ] = 9; /* guess */
-
+ 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 );
}
ni_caldac_layout_t layout;
init_ni_caldac_layout( &layout );
- layout.adc_pregain_offset = 8;
+ layout.adc_pregain_offset = 0;
layout.adc_postgain_offset = 4;
- layout.adc_pregain_offset_fine = 0;
+ layout.adc_pregain_offset_fine = 8;
layout.adc_gain = 2;
layout.dac_offset[ 0 ] = 6;
layout.dac_gain[ 0 ] = 11;
ni_caldac_layout_t layout;
init_ni_caldac_layout( &layout );
- layout.adc_pregain_offset = 8;
+ layout.adc_pregain_offset = 0;
layout.adc_postgain_offset = 4;
- layout.adc_pregain_offset_fine = 0;
+ layout.adc_pregain_offset_fine = 8;
layout.adc_gain = 2;
layout.dac_offset[ 0 ] = 6;
layout.dac_gain[ 0 ] = 11;
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;
-#if 0
-/* this seems broken, i think we need to change
- * second caldac in driver to ad8804_debug */
- layout.dac_offset[ 0 ] = 12 + 11;
- layout.dac_gain[ 0 ] = 12 + 7;
- layout.dac_gain_fine[ 0 ] = 12 + 3;
- layout.dac_offset[ 1 ] = 12 + 1;
- layout.dac_gain[ 1 ] = 12 + 9;
- layout.dac_gain_fine[ 1 ] = 12 + 5;
-#else
+
DPRINT(0, "WARNING: you need comedi driver version 0.7.67 or later\n"
"for this calibration to work properly\n" );
-/* this should work if the first two caldacs were ad8804_debug */
+/* 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_gain[ 1 ] = 16 + 5;
layout.dac_gain_fine[ 1 ] = 16 + 6;
layout.dac_linearity[ 1 ] = 16 + 4;
-#endif
+
return cal_ni_generic( setup, &layout );
}
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 )
{
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,
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 );
}
}
}
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 ] );
{
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 ] );
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_relative( setup, current_cal, ni_zero_offset_low,
- ni_zero_offset_high, layout->adc_postgain_offset_fine );
generic_do_cal( setup, current_cal, ni_zero_offset_high,
layout->adc_pregain_offset_fine );
sc_push_channel( current_cal, SC_ALL_CHANNELS );
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_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_fine );
}
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 ),
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 ),
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;
+
+ 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);
+}
+
projects / comedilib.git / blobdiff