mirror of https://github.com/wolfSSL/wolfBoot.git
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/* stm32h7.c
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*
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* Test bare-metal application.
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*
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* Copyright (C) 2020 wolfSSL Inc.
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*
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* This file is part of wolfBoot.
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*
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* wolfBoot is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfBoot is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include "system.h"
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#include "hal.h"
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#define AHB4_CLOCK_ER (*(volatile uint32_t *)(0x580244E0))
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#define GPIOB_AHB4_CLOCK_ER (1 << 1)
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#define GPIOE_AHB4_CLOCK_ER (1 << 4)
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#define GPIOB_BASE 0x58020400
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#define GPIOE_BASE 0x58021000
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#define GPIOB_MODE (*(volatile uint32_t *)(GPIOB_BASE + 0x00))
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#define GPIOB_PUPD (*(volatile uint32_t *)(GPIOB_BASE + 0x0c))
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#define GPIOB_BSRR (*(volatile uint32_t *)(GPIOB_BASE + 0x18))
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#define GPIOB_AFL (*(volatile uint32_t *)(GPIOB_BASE + 0x20))
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#define GPIOB_AFH (*(volatile uint32_t *)(GPIOB_BASE + 0x24))
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#define GPIOE_MODE (*(volatile uint32_t *)(GPIOE_BASE + 0x00))
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#define GPIOE_PUPD (*(volatile uint32_t *)(GPIOE_BASE + 0x0c))
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#define GPIOE_BSRR (*(volatile uint32_t *)(GPIOE_BASE + 0x18))
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#define GPIOE_AFL (*(volatile uint32_t *)(GPIOE_BASE + 0x20))
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#define GPIOE_AFH (*(volatile uint32_t *)(GPIOE_BASE + 0x24))
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#define LED_BOOT_PIN (0) //PB0 - Nucleo LD1 - Green Led
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#define LED_USR_PIN (1) //PE1 - Nucleo LD2 - Yellow Led
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static void boot_led_on(void)
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{
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uint32_t reg;
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uint32_t pin = LED_BOOT_PIN;
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AHB4_CLOCK_ER |= GPIOB_AHB4_CLOCK_ER;
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reg = GPIOB_MODE & ~(0x03 << (pin * 2));
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GPIOB_MODE = reg | (1 << (pin * 2));
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reg = GPIOB_PUPD & ~(0x03 << (pin * 2));
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GPIOB_PUPD = reg | (1 << (pin * 2));
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GPIOB_BSRR |= (1 << pin);
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}
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static void boot_led_off(void)
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{
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GPIOB_BSRR |= (1 << (LED_BOOT_PIN + 16));
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}
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void usr_led_on(void)
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{
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uint32_t reg;
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uint32_t pin = LED_USR_PIN;
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AHB4_CLOCK_ER |= GPIOE_AHB4_CLOCK_ER;
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reg = GPIOE_MODE & ~(0x03 << (pin * 2));
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GPIOE_MODE = reg | (1 << (pin * 2));
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reg = GPIOE_PUPD & ~(0x03 << (pin * 2));
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GPIOE_PUPD = reg | (1 << (pin * 2));
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GPIOE_BSRR |= (1 << pin);
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}
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void usr_led_off(void)
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{
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GPIOE_BSRR |= (1 << (LED_USR_PIN + 16));
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}
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void main(void)
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{
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hal_init();
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boot_led_on();
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usr_led_on();
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boot_led_off();
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while(1)
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;
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}
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