Re: Why doesn't work the ADC's DMA mode of ADuC842?

Hello,

I'm facing the same problem in running the DMA of AduC842. I checked the technical notes provided with the CD (u019: DMA to XRAM on the ADuC831/832) and I tried to understand it.

However, the concept of the DMA is clear but the c-code has no enough comments and descriptions .

For example, while calling DmaTimer2 loop how do I display the data from XRAM? and how many data are stored in DMA according to function prepareDma()?

Also, what is the XTAL frequency? was it set to 32KHz or 16MHz?

Regards