mirror of
https://github.com/eddyem/stm32samples.git
synced 2025-12-06 02:35:23 +03:00
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/*
|
|
* This file is part of the F303usart project.
|
|
* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "hardware.h"
|
|
#include "usart.h"
|
|
|
|
static inline void gpio_setup(){
|
|
RCC->AHBENR |= RCC_AHBENR_GPIOAEN | RCC_AHBENR_GPIOBEN; // for USART and LEDs
|
|
for(int i = 0; i < 10; ++i) nop(); // don't know why, but next line won't work without a little delay
|
|
GPIOB->MODER = GPIO_MODER_MODER0_O | GPIO_MODER_MODER1_O;
|
|
GPIOB->ODR = 1;
|
|
}
|
|
|
|
void hw_setup(){
|
|
gpio_setup();
|
|
}
|
|
|