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PSevc.1
Visitor II
July 14, 2022
Question

Why it is not possible to use together on STM32H735VGT6 Ethernet RMII and Debug pins at LQFP100 package?

  • July 14, 2022
  • 1 reply
  • 915 views

Just select

File - New - Project - STM32H735VGT6 (with LQFP100 package)

Then select Conectivity - Eth - RMII.

Since this time Trace and Debug - DEBUG reports conflict with ETH RMII, see attached picture.png, marked in red, and I don't know why.

By datasheet pins PA13 and PA14 should be dedicated for debug purpose only, not shared with other functions.

For BGA100 pin package it is working correctly. Any idea, please?

Thanks for help.

This topic has been closed for replies.

1 reply

KnarfB
Super User
July 14, 2022

The yellow sign is not an error, but a warning. It means, that at least one Debug config will generate a conflict. If you proceed to Trace and Debug and drop down the Debug config list, you see *some* configs marked as red. (synchr. trace). They would generate pin conflicts. Choosing an unmarked config like Trace Async. Sw should work.

hth

KnarfB