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STM32H743 system clock config error

Nolan Grimes
Associate

‎2018-04-17 08:44 AM

Posted on April 17, 2018 at 17:44

I migrated from Nucleo STM32F767 to Nucleo STM32H743.  I am using Keil compiler version 5.25.2 and the HAL interface.  I'm generating the startup code from STM32CubeMx version 4.25.0. The clock setup for the H743 doesn't work correctly as compared to the configuration generated for the F767.  I continue to have trouble with the UART/USART's and am guessing that something regarding the SystemClock_Config() function is not setup correctly from STM32CubeMx.

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Tesla DeLorean
Guru

‎2018-04-17 12:04 PM

Posted on April 17, 2018 at 21:04

With the USART I would tend to suspect the define for HSE_VALUE being wrong.

The H743 Nucleo should be using 8 MHz, and there should be working examples for the board under the HAL/Cube trees.

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