Hi to all! I have the following question: why do the relays in the circuit start switching when I connect the STM32F1 microcontroller to the computer through the programmer? And similar happens when I initialize RCC. As if all the contacts are being checked and the relays are starting to switch. What could be the problem? I will be grateful for the answer!
The relays switching during STM32F1 microcontroller connection may result from default GPIO states during initialization. Ensure proper pull-up/down resistors to prevent undefined states. When initializing RCC, check for inadvertent GPIO state changes and add delays or debouncing if necessary to stabilize signals during startup.
