I have an STM32F051R8 on a custom board and use the HAL library, and much of the code is based on the generated code from CubeMX. The problem I see is that about 1 out of every 10 times when I go to STOP mode the HSI is not configured as the current ...

I have been using a stm32f051 as a slave on i2c1 without any problem. Then I started to use it as a master on i2c2 at the same time. This caused the communication on i2c1 to fail with varying frequency. I have been using the i2c drivers with interru...

I have a 32 kHz LSE clock as output on the MCO on GPIO PA[8]. In my program I go to stop mode with wake up interrupt on several GPIOs, on of them are PC[8]. When I wake up again I don't wan't interrupt on these GPIOs and run HAL_GPIO_DeInit on them (...