Hey TJF,
with 6285 ns I was only able to set the amount of samples to 1 without
getting an error. With 6290 works everything fine.
Here is some c samplecode for you, it keeps writing all the samples to a
file in burst of 1000000/4 samples per writing burst.
#include "unistd.h"
#include "stdio.h"
#include "../c_wrapper/pruio.h"
//! The main function.
int main(int argc, char **argv)
{
FILE* oFile;
uint8 bDiv = 4, bStep;
uint32 bSize = 1e6;
uint32 bsSize = bSize/bDiv;
oFile = fopen("output","wb");
pruIo *io = pruio_new(PRUIO_DEF_ACTIVE, 0x98, 0, 1); //! create new
driver structure
pruio_adc_setStep(io, 9, 4, 0, 0, 0); // step 9 for AIN-4
if (pruio_config(io, bSize, 1 << 9, 6290, 0)){ // '1 << 9' -> step 9,
'6285' ns -> 159.1 kHz
printf("config failed (%s)\n", io->Errr);}
else{
pruio_rb_start(io);
sleep(1);
while(1){
while(io->DRam[0] < (bStep+1) * bsSize && io->DRam[0] > bStep * bsSize
){
sleep(1);
}
printf("start writing %u\n",bStep*bsSize);
fwrite(io->Adc->Value, sizeof(uint16), 16000, oFile);
printf("end writing %u\n",(bStep+1)*bsSize);
bStep = bStep+1 < bDiv ? bStep+1 : 0;
}
}
pruio_destroy(io);
return 0;
}
Greetings,
Nils Kohrs
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