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We're having a problem getting going on the TS-7200 using the TS-ADC16 for ADC input. The shell library works great, and we can use the DAC fine from our C code, but we're missing something on the ADC sequence. We are randomly getting FIFO overflow errors. We tried to go break down the shell library and copy the basic functionality to get an example going but something is still missing. We would appreciate if someone could point out the problem(s). Thanks. our example.c code randomly generates this error, maybe 3 out of 5 times: ADC machine stopped prematurely due to FIFO overflow: 0x0362 Fifo: 10923 #include <sys/types.h> #include <sys/time.h> #include <stdio.h> #include "lib/tsadclib1624.h" #define MaxBufferSize 10000 #define Channels 16 #define DACrange DACRANGE_02VB #define ADCrange ADCRANGE_05S #define SampleRate 100 #define NumSamples 10 int main() { uint16_t *bufferArray[Channels]; int16_t *workArray[Channels]; uint16_t index; uint16_t *aBuffer; int8_t J; bool b; int v; int numberOfSamplesAcquired; // Create Buffers for (index=0; index < 16; index++) { if ((aBuffer = malloc(MaxBufferSize+1 * sizeof(uint16_t))) == NULL) { printf("Error malloc\n"); return; }
bufferArray[index] = aBuffer; } // Initialize board tsadclib1624_init(SBC_TS7200, 16, 10000); // Check for buffers b = tsadclib1624_buffers();
if (b == TRUE) { printf("Buffer OK\n"); for (index = 0; index < 16; index++) { workArray[index] = bufferArray[index]; } usleep(50000); // Start sampling tsadclib1624_sample(0, 2, SampleRate, NumSamples, ADCrange, workArray, FALSE); numberOfSamplesAcquired = tsadclib1624_pollResults(0, TRUE); // Print out buffers for (J=0; J<16; J++) { printf("\nIndex: %d\n", J); if (workArray[J] != NULL) { for (index=0; index<NumSamples; index++) { printf("%d,", *workArray[J]++); }
} } }else { printf("Buffor NOT OK"); }
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