Hello. I've been beating my head trying to make this work.  PSoC 3 processor, ADC to DMA to memory.  Everything seems set up right but the DMA result memory location never gets the value.  If I read the ADC directly I get a good value, so the ADC is working.  The ADC interrupt is firing because I can breakpoint it there, and I can see that the ADC_convDone flag is set.

I've gone round and round with the documentation and think everything is set up right.  But the DMA screens in Creator 4.4 do not exactly align with the documentation.

The one thing I cannot find is exactly how to set up the TD for my scenario.  I have the ADC converting continuously, and the TD is set up as: Endian=off, trq=off, nrq=off, length=1, source ADC_DEC_SAMP_PTR, Inc=off, dest=memory value,  Auto Next=off, and Next Td=End.

I have tried Auto Next=on and Next Td=0, but that does not change anything and I don't think it is right anyway.

So here are my setup values:

/* Defines for AzDma */
#define AzDma_BYTES_PER_BURST 1
#define AzDma_REQUEST_PER_BURST 1
#define AzDma_SRC_BASE (CYDEV_PERIPH_BASE)
#define AzDma_DST_BASE (CYDEV_SRAM_BASE)

/* Variable declarations for AzDma */
/* Move these variable declarations to the top of the function */
uint8 AzDma_Chan;
uint8 AzDma_TD[1];

/* DMA Configuration for AzDma */
AzDma_Chan = AzDma_DmaInitialize (AzDma_BYTES_PER_BURST, AzDma_REQUEST_PER_BURST,
HI16 (AzDma_SRC_BASE), HI16 (AzDma_DST_BASE));
AzDma_TD[0] = CyDmaTdAllocate ();
CyDmaTdSetConfiguration (AzDma_TD[0], 1, CY_DMA_DISABLE_TD, 0);
CyDmaTdSetAddress (AzDma_TD[0], LO16 ((uint32)ADC_DEC_SAMP_PTR), LO16 ((uint32)AdRes.Az));
CyDmaChSetInitialTd (AzDma_Chan, AzDma_TD[0]);
CyDmaChEnable (AzDma_Chan, 1);

What I want is for the memory location to get overwritten with each conversion - for now.

Thanks for any insight, Russ