Hello, we have boards with the MCU STM32F746. This works normally but in two cases we had a problem with the option bytes. Several values were changed and now we can't remove the protection.The first board we tried several times to change level prote...

Hello, we're using the microcontroller STM32F302C8 and we have a problem with the PLL.The problem is when we enables the PLL the microcontroller is reset. We have made several tests using HSI and HSE, but always the same result, a reset after to enab...