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pass3master
Associate III
December 3, 2024
Question

How to Parallel synchronous transmission using GPIO and DMA

  • December 3, 2024
  • 3 replies
  • 784 views

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?

This topic has been closed for replies.

3 replies

STOne-32
STOne-32
ST Technical Moderator
December 3, 2024

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

pass3masterAuthor
Associate III
December 3, 2024

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

pass3masterAuthor
Associate III
December 3, 2024

"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?

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