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added support for pci-mio-16xe-10

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This commit is contained in:
David Schleef 2000-03-29 23:52:34 +00:00
parent 99f84ebdbd
commit 03de53a757
1 changed files with 93 additions and 2 deletions
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95
comedi_calibrate/comedi_calibrate.c
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@ -63,6 +63,7 @@ void reset_caldacs(void);
void setup_caldacs(void);
void cal_ni_mio_E(void);
void ni_mio_ai_postgain_cal(void);
void ni_mio_ai_postgain_cal_2(int chan,int dac,int range_lo,int range_hi,double gain);
void channel_dependence(int adc,int range);
void caldac_dependence(int caldac);
void dump_curve(int adc,int caldac);
@ -263,6 +264,68 @@ void cal_ni_mio_E(void)
return;
}
if(!strcmp(boardname,"pci-mio-16xe-10")){
/*
* results of channel dependence test:
*
* [0] [1] [2] [3] [8]
* offset, lo 1.9e-4* 2.2e-6 2.4e-7
* offset, hi 2.0e-6* 2.1e-8 2.7e-7
* offset, unip 1.9e-4 2.1e-6 3.9e-7
* ref -2.3e-5*-1.3e-6*1.9e-4* 2.1e-6* 3.2e-7
*
* thus, 2,3 are postgain offset, 8 is pregain, and
* 0,1 is gain. Note the suspicious lack of unipolar
* offset.
*
* layout
*
* 0 AI gain -2.3e-5
* 1 AI gain -1.3e-6
* 2 AI postgain offset 1.9e-4
* 3 AI postgain offset 2.2e-6
* 4 AO
* 5 AO
* 6 AO
* 7 AO
* 8 AI pregain offset 2.4e-7
* 9 unknown
* 10 unknown
*/
printf("last factory calibration %02d/%02d/%02d\n",
read_eeprom(508),read_eeprom(507),read_eeprom(506));
printf("lsb=%d msb=%d\n",read_eeprom(430),read_eeprom(431));
ref=5.000+(0.001*(read_eeprom(430)+read_eeprom(431)));
printf("ref=%g\n",ref);
reset_caldacs();
printf("postgain offset\n");
ni_mio_ai_postgain_cal_2(0,2,0,6,100.0);
ni_mio_ai_postgain_cal_2(0,3,0,6,100.0);
printf("pregain offset\n");
chan_cal(0,8,6,0.0);
chan_cal(0,8,6,0.0);
//printf("unipolar offset\n");
//chan_cal(0,2,8,0.0);
//chan_cal(0,2,8,0.0);
printf("gain offset\n");
chan_cal(5,0,0,5.0);
chan_cal(5,1,0,5.0);
chan_cal(5,1,0,5.0);
printf("results (offset)\n");
for(i=0;i<16;i++){
read_chan(0,i);
}
//return;
}
{
int n_ranges;
@ -273,15 +336,19 @@ void cal_ni_mio_E(void)
n_ranges=comedi_get_n_ranges(dev,ad_subdev,0);
/* 0 offset, low gain */
printf("channel dependence 0 range 0\n");
channel_dependence(0,0);
/* 0 offset, high gain */
printf("channel dependence 0 range %d\n",n_ranges/2-1);
channel_dependence(0,n_ranges/2-1);
/* unip/bip offset */
printf("channel dependence 0 range %d\n",n_ranges/2);
channel_dependence(0,n_ranges/2);
/* voltage reference */
printf("channel dependence 5 range 0\n");
channel_dependence(5,0);
}
@ -315,6 +382,32 @@ void ni_mio_ai_postgain_cal(void)
update_caldac(1);
}
void ni_mio_ai_postgain_cal_2(int chan,int dac,int range_lo,int range_hi,double gain)
{
double offset_lo,offset_hi;
linear_fit_t l;
double slope;
double a;
check_gain_chan_x(&l,chan,range_lo,dac);
offset_lo=linear_fit_func_y(&l,caldacs[dac].current);
printf("offset lo %g\n",offset_lo);
check_gain_chan_x(&l,chan,range_hi,dac);
offset_hi=linear_fit_func_y(&l,caldacs[dac].current);
printf("offset hi %g\n",offset_hi);
slope=l.slope;
a=(offset_lo-offset_hi)/(gain-1.0);
a=caldacs[dac].current-a/slope;
printf("%g\n",a);
caldacs[dac].current=rint(a);
update_caldac(dac);
}
void chan_cal(int adc,int cdac,int range,double target)
{
linear_fit_t l;
@ -385,8 +478,6 @@ void setup_caldacs(void)
caldacs[i].subdev=s;
caldacs[i].chan=i;
caldacs[i].maxdata=comedi_get_maxdata(dev,s,i);
/* XXX */
caldacs[i].maxdata=255;
caldacs[i].current=0;
//printf("caldac %d, %d\n",i,caldacs[i].maxdata);
}