Posted on February 13, 2015 at 16:45I am using stm32f427 chip with external SDRAM. I tried to implement ADC triple mode but I found the raw data transferred to external memory by DMA is duplicated or corrupted.#define SDRAM_BANK1_1MB_ADDR      (0xC0...

Posted on September 18, 2014 at 02:05I want to change polling SPI to DMA SPI. Now I get stuck and have looked up lots of material. None of them is working for me. The original polling SPI code works fine. I implemented the following code for the DMA...