Can't get LED to blink from template

Participant

I’m following the book but I’m using the discovery board F0 instead.

I am using eclipse like the book, made a project by selecting the correct MCU and ram and loaded the blink template. The blink template looks like it should work right out of the box, I can see the code is suppose to blink PC9 which LED3 but when I built the project and loaded it to my board, I don’t see the LED blinking.

I went to youtube and copied someone’s code that directly assigned values to RCC and GPIOC. His code worked and I got the LED to blink. So my board isn’t broken but I can’t get the template to work.

I don’t know what I’m doing wrong when I try to build the blink template directly. If I can’t get the template to work, is this going to affect how I follow the later chapters?

Carmine Noviello

Keymaster

One really frequent mistake is the lack of clock enabling macro for that GPIO port:

__HAL_RCC_GPIOC_CLK_ENABLE();