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How to communicate each core for stm32h745i-disco dual core?

BAl K.1
Associate III

‎2023-04-26 07:12 PM

I use stm32h745i-disco for work, and want to use dual core system. one for lvgl display, and the other for pn532 rfid, which is needed to communicate each other. anyone have experience about this? pls help

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SofLit
ST Employee

‎2023-04-27 04:43 AM

Hello,

I invite you to read the AN5617- STM32H745/755 and STM32H747/757 lines inter-processor communications.

If it does answer your question, please click on "Select as best" this answer.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
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BAl K.1
Associate III
In response to SofLit

‎2023-05-09 01:24 AM

Hello, i have read the document but still confused. Can i send some data bytes from cm7 to cm4 using IPC?

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SofLit
ST Employee
In response to BAl K.1

‎2023-05-09 01:36 AM

Hello,

Indeed you can share data between the two cores. You can also refer to the examples provided by STM32CubeH7 package under the path \Projects\STM32H745I-DISCO\Applications\OpenAMP

Also refer to the oscilloscope demo X-CUBE-H7DC-APP.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
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Tesla DeLorean
Guru
In response to BAl K.1

‎2023-05-09 03:00 AM

They share a common view of some RAM regions and you can signal via HSEM​

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