SAR ADC - DMA - Digital Filter Block: 2s Complement Problem | Cypress Semiconductor
SAR ADC - DMA - Digital Filter Block: 2s Complement Problem
I have been trying for days to take 8-bit samples from the SAR ADC and DMA them to the DFB. The DMA is working, however, the output of the SAR ADC is unsigned while the DFB wants a 2s complement input.
How can I DMA from SAR ADC to DFB without an interrupt that converts the ADC output to 2s complement?