tweak to unipolar postgain offset routine

diff --git a/comedi_calibrate/cal_common.c b/comedi_calibrate/cal_common.c
index 46b1ba3ace186a746ec1359a9c2c3e9990a6ef10..ab0df08aaf2c7b817278eee6e9a52c02f9a64f08 100644 (file)
--- a/comedi_calibrate/cal_common.c
+++ b/comedi_calibrate/cal_common.c
@@ -180,6 +180,7 @@ static void generic_do_adc_postgain_offset( calibration_setup_t *setup, const ge
                lowgain = get_unipolar_lowgain( setup->dev, setup->ad_subdev );
                highgain = get_unipolar_highgain( setup->dev, setup->ad_subdev );
 
+               generic_prep_adc_caldacs( setup, layout, channel, highgain );
                reset_caldac( setup, layout->adc_postgain_offset( channel ) );
                /* need to make sure we aren't stuck on zero for unipolar,
                 * by setting pregain offset to maximum */
@@ -192,7 +193,17 @@ static void generic_do_adc_postgain_offset( calibration_setup_t *setup, const ge
                lowgain = get_bipolar_lowgain( setup->dev, setup->ad_subdev );
                highgain = get_bipolar_highgain( setup->dev, setup->ad_subdev );
        }
-
+       generic_prep_adc_caldacs( setup, layout, channel, highgain );
+       if( unipolar )
+       {
+               reset_caldac( setup, layout->adc_postgain_offset( channel ) );
+               /* need to make sure we aren't stuck on zero for unipolar,
+                * by setting pregain offset to maximum */
+               generic_peg( setup, layout->adc_ground_observable( setup, channel, lowgain ),
+                       layout->adc_offset( channel ), 1 );
+               generic_peg( setup, layout->adc_ground_observable( setup, channel, lowgain ),
+                       layout->adc_offset_fine( channel ), 1 );
+       }
        generic_do_relative( setup, current_cal, layout->adc_ground_observable( setup, channel, lowgain ),
                layout->adc_ground_observable( setup, channel, highgain ), layout->adc_postgain_offset( channel ) );