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added calibration for DAQCard-ai-16xe-50

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This commit is contained in:
David Schleef 2000-05-27 00:18:53 +00:00
parent 1dbdacce2a
commit cca9e94ba7
1 changed files with 84 additions and 9 deletions
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93
comedi_calibrate/comedi_calibrate.c
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@ -57,6 +57,8 @@ void write_caldac(comedi_t *dev,int subdev,int addr,int val);
void check_gain(int ad_chan,int range);
double check_gain_chan(int ad_chan,int range,int cdac);
int dump_flag;
void update_caldac(int i);
void reset_caldacs(void);
@ -152,7 +154,8 @@ int main(int argc, char *argv[])
drivername=comedi_get_driver_name(dev);
if(!strcmp(drivername,"atmio-E") || !strcmp(drivername,"pcimio-E"))
if(!strcmp(drivername,"atmio-E") || !strcmp(drivername,"pcimio-E")
|| !strcmp(drivername,"ni_mio_cs"))
cal_ni_mio_E();
return 0;
@ -163,6 +166,7 @@ void cal_ni_mio_E(void)
{
char *boardname;
double ref;
int uv;
int i;
boardname=comedi_get_board_name(dev);
@ -297,7 +301,9 @@ void cal_ni_mio_E(void)
printf("lsb=%d msb=%d\n",read_eeprom(430),read_eeprom(431));
ref=5.000+(0.001*(read_eeprom(430)+read_eeprom(431)));
uv=read_eeprom(430)+256*read_eeprom(431);
if(uv>=0x8000)uv-=0x10000;
ref=5.000+1.0e-6*uv;
printf("ref=%g\n",ref);
reset_caldacs();
@ -324,7 +330,68 @@ void cal_ni_mio_E(void)
read_chan(0,i);
}
//return;
return;
}
if(!strcmp(boardname,"DAQCard-ai-16xe-50")){
/*
* results of channel dependence test:
*
* [0] [1] [2] [3] [8]
* offset, lo -2.2e-6 1.5e-4* 2.5e-7
* offset, hi 7.8e-7* 1.3e-7
* offset, unip 7.4e-4 1.1e-5 1.5e-4 5.5e-7
* ref -3.7e-4 -5.4e-6 1.5e-4* 5.5e-7
*
* thus, 2 is postgain offset, 8 is pregain, 0 is
* unipolar offset, 1 is gain
*
* layout
*
* 0 AI unipolar offset 7.4e-4
* 1 AI gain -5.4e-6
* 2 AI postgain offset 1.5e-4
* 3 unknown
* 4 AO
* 5 AO
* 6 AO
* 7 AO
* 8 AI pregain offset 2.5e-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(446),read_eeprom(447));
uv=read_eeprom(446)+256*read_eeprom(447);
if(uv>=0x8000)uv-=0x10000;
ref=5.000+1.0e-6*uv;
printf("ref=%g\n",ref);
reset_caldacs();
printf("postgain offset\n");
ni_mio_ai_postgain_cal_2(0,2,0,7,200.0);
printf("pregain offset\n");
chan_cal(0,8,7,0.0);
chan_cal(0,8,7,0.0);
printf("unipolar offset\n");
chan_cal(0,0,8,0.0);
chan_cal(0,0,8,0.0);
printf("gain offset\n");
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;
}
{
@ -449,8 +516,6 @@ void caldac_dependence(int caldac)
}
}
int dump_flag;
void dump_curve(int adc,int caldac)
{
linear_fit_t l;
@ -527,6 +592,7 @@ double check_gain_chan(int ad_chan,int range,int cdac)
double check_gain_chan_x(linear_fit_t *l,int ad_chan,int range,int cdac)
{
int orig,i,n;
int step;
new_sv_t sv;
double sum_err;
int sum_err_count=0;
@ -539,9 +605,18 @@ double check_gain_chan_x(linear_fit_t *l,int ad_chan,int range,int cdac)
new_sv_init(&sv,dev,0,ad_chan,range,AREF_OTHER);
step=n/256;
if(step<1)step=1;
l->n=0;
caldacs[cdac].current=0;
update_caldac(cdac);
new_sv_measure(&sv);
sum_err=0;
for(i=0;i<n;i++){
caldacs[cdac].current=i;
for(i=0;i*step<n;i++){
caldacs[cdac].current=i*step;
update_caldac(cdac);
new_sv_measure(&sv);
@ -551,14 +626,14 @@ double check_gain_chan_x(linear_fit_t *l,int ad_chan,int range,int cdac)
sum_err+=sv.error;
sum_err_count++;
}
l->n++;
}
caldacs[cdac].current=orig;
update_caldac(cdac);
l->yerr=sum_err/sum_err_count;
l->n=n;
l->dx=1;
l->dx=step;
l->x0=0;
linear_fit_monotonic(l);