7 years ago.

Nucleo F411RE: Cant get PC_14 and PC_15 to work?

Hello,

I'm trying to work with a Nucleo F411RE board but I can't seem to get pins PC_14 and PC_15 working as digital outs.

I have PC_7, PC_10, PC_11, and PC_13 working just fine but 14 and 15 do nothing. Is there something I'm missing about these pins? Do they have some kind of special purpose and cannot be set to digital out?

FYI, I am fairly new to Nucleo boards, or anything more sophisticated than an Arduino to be honest.

Code is very simple:

1. include "mbed.h"

BusOut RGB1 (PC_7, PC_10, PC_11); BusOut RGB2 (PC_13, PC_14, PC_15);

int main() {

RGB1[0] = 1; reads 3.3V RGB1[1] = 1; reads 3.3V RGB1[2] = 1; reads 3.3V RGB2[0] = 1; reads 3.3V RGB2[1] = 1; reads 0V RGB2[2] = 1; reads 0V return 0; }