When uploading a blink program to an STM32 MCU installed in a custom PCB, the LED turns on but it does not turn off.
I have a board with a STM32F103RET6 with many things, and a blue and green LED's connected to GPIO pins. To test if it works correctly I'm using STM32 cube IDE to upload a program that blinks the LED's, and the LED turns on but it does not turn off a...