How to Parallel synchronous transmission using GPIO and DMA

[pass3master]

About parallel synchronous transmission using GPIO and DMA.

We want to achieve 8-bit parallel synchronous transmission using GPIO and DMA. However, we could not find any program samples that could serve as reference.

Is there a sample somewhere that can serve as a reference?

Also, what kind of settings are necessary to achieve 8-bit parallel synchronous transmission using GPIO and DMA?

[STOne-32]

Dear @pass3master ,

 

We have this generic application Note AN4666

https://www.st.com/resource/en/application_note/an4666-parallel-synchronous-transmission-using-gpio-and-dma-stmicroelectronics.pdf

the principle is the same on most of STM32 MCUs .

Hope it helps ,

STOne-32

[pass3master]

I can sort of understand the principle, but are there any sample programs on github, etc.?

[pass3master]

"Verify whether GPIO can be used as a target for parallel data transmission by your microcontroller's DMA controller."

We are using STM32H743, how can we find out the above?
Is it a reference manual?