STM32F0 Peripheral to Peripheral DMA Transfer

[GOber.9]

Hi all,

I have been tasked with porting existing Atmel SAMD21 code to an STM32F030xC. I am getting a bit hung up on how to implement the DMA transfer functionality. The existing functionality reads from a SPI SRAM chip, and writes to a SPI LCD display. Both are attached to 2 different SPI peripherals. It is doing this transfer processes via DMA.

Now, in the reference manual, it states that DMA can handle peripheral-to-peripheral transfers. If this is the case, how do I setup the Peripheral address register (DMA_CPARx) and the Memory address register (DMA_CMARx)? Do I simply put the SPIx_DR addresses in both registers and just let DMA do its thing? Can DMA even handle this sort of request on the STM32F030xC?

Any help is appreciated,

Thank you!

[After Forever · Accepted solution]

Some older discussions may be of help:

thread 1

thread 2

[GOber.9]

Awesome, thank you!

Those are a huge help. For some reason my searching attempts didn't come up with those results.