David Siorpaes / Mbed 2 deprecated Nucleo_blinky_with_registers

Blinky LED example with registers for PoliMI

Dependencies:   mbed

main.cpp@0:0dd8ec2326be, 2016-03-18 (annotated)

Committer:
daz
Date:
Fri Mar 18 11:33:16 2016 +0000
Revision:
0:0dd8ec2326be
Blinky project that makes use of direct register access.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
daz 0:0dd8ec2326be 1 #include "mbed.h"
daz 0:0dd8ec2326be 2
daz 0:0dd8ec2326be 3 int main(){
daz 0:0dd8ec2326be 4 volatile int i;
daz 0:0dd8ec2326be 5
daz 0:0dd8ec2326be 6 /* Enable RCC GPIOA clock */
daz 0:0dd8ec2326be 7 *((uint32_t*)0x40023830) |= (1<<0);
daz 0:0dd8ec2326be 8
daz 0:0dd8ec2326be 9 /* Set PA5 as digital output */
daz 0:0dd8ec2326be 10 *((uint32_t*)0x40020000) |= (1<<10);
daz 0:0dd8ec2326be 11
daz 0:0dd8ec2326be 12 while(1) {
daz 0:0dd8ec2326be 13 /* PA5 on */
daz 0:0dd8ec2326be 14 *((uint32_t*)0x40020014) |= (1<<5);
daz 0:0dd8ec2326be 15
daz 0:0dd8ec2326be 16 /* Delay */
daz 0:0dd8ec2326be 17 for(i = 5000000; i; i--);
daz 0:0dd8ec2326be 18
daz 0:0dd8ec2326be 19 /* PA5 off */
daz 0:0dd8ec2326be 20 *((uint32_t*)0x40020014) &= ~(1<<5);
daz 0:0dd8ec2326be 21
daz 0:0dd8ec2326be 22 /* Delay */
daz 0:0dd8ec2326be 23 for(i = 5000000; i; i--);
daz 0:0dd8ec2326be 24 }
daz 0:0dd8ec2326be 25 }