PeriodicAD_DMA.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
 
#include <basictypes.h>
 
#define DMA_CH_DTER_0 8
#define DMA_CH_DTER_1 9
#define DMA_CH_DTER_2 10
#define DMA_CH_DTER_3 11
 
#define DMA_ERR_NOERR 0
#define DMA_ERR_CHNOTSET 1
#define DMA_ERR_TMRNOTSET 2
#define DMA_ERR_TMRRUNNING 3
 
// Initialize the dma timer to sample the ADC
int initADC_DMA(int channel = 0, int timerNum = 3);
 
// Set the sample period for the ADC (in us)
double setSamplePeriod(uint32_t period);
 
// Set the sample frequency (in Hz)
double setSampleFreq(uint32_t freq);
 
// Start logging the ADC using DMA. The period is in units of 1 us
int startADC_DMA(void *buffer, uint32_t bufferSize, void (*isrfunc)(void *, void *));
 
// Stop the DMA Timer and ADC
void stopADC_DMA();