[BACKPORT v1.15] stm32h7: Reset USART clock selection (#23498) #23516
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This resets the USARTs' clock source selection to the default, in case it has been changed by the bootloader. This is required if booting from the ArduPilot bootloader which happens to reset the clock selection to PLL. Without this fix, UARTs (including the console) is garbled, so presumably at an invalid baudrate.
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Tested on 2 separate UARTS (for each defines respectively) on Pixhawk 6C, Pixhawk 6X, and Cube Orange and Cube Orange+. |
davids5
approved these changes
Aug 8, 2024
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Backport of #23498