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SandSwitch · 2025-01-16

Hi,I'm encountering an issue with my STM32H750 MCU. I download my program to the flash via the UART interface using STM32CubeProgrammer. The MCU can work well for a few days, but suddenly crashed. This problem occurred randomly on 2 out of 15 boards ...

SandSwitch · 2025-01-17

Hi,0x08000000 is the start address of our code.There is an OTA in the code to do remote updates via TCP, it can download firmware to ram and then write to flash. So the flash is written a few times, but not too often.Thanks for your reply, best regar...

SandSwitch · 2025-01-16

Hi, Pavel A.I got a ST-LINK. Reading option byte ok, checking RDP =0xAA means there are no read protection. But reading flash still failed. Log: 15:46:53:482 : STLinkUSBDriver.dll loaded 15:46:53:485 : STLinkUSBDriver.dll loaded 15:46:53:485 : ...

SandSwitch · 2025-01-16

Thanks for advice. I don't have a ST-LINK for now, but once I get one I will try it and share the results.

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STM32H750 can not read flash bank1 while not in read protection

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Re: STM32H750 can not read flash bank1 while not in read protection

Re: STM32H750 can not read flash bank1 while not in read protection