20BIT ADC > MEM via DMA. Maximum Transfer Count? | Cypress Semiconductor
20BIT ADC > MEM via DMA. Maximum Transfer Count?
I am using the DMA to read out the data of the delta sigma ADC and store these values into RAM.
Afterwards I use them to calculate several things. My Code for this task is the same as in the example, the only difference is, that the ADC is running in 17Bit mode (but also has uint32 as a result). I was trying to store more samples into the RAM, so I changed the BUFFER_SIZE to highe values.
Until a buffer size of 512 everything is ok. but when I increase the buffer to 1024 it doesn't work the way I expected. After 544 correct sampled and stored values every value is 0.
Has anyone a solution for this?
Thanks in advance,