mirror of https://github.com/wolfSSL/wolfBoot.git
95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
/* app_stm32g4.c
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*
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* Test bare-metal application for the STM32G4 (NUCLEO-G491RE).
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*
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* Copyright (C) 2026 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 3 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 <stdint.h>
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#include <stdio.h>
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#include "hal.h"
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#include "stm32g4.h"
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#include "wolfboot/wolfboot.h"
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#include "target.h"
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#ifdef TARGET_stm32g4
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static void led_init(void)
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{
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uint32_t reg;
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RCC_AHB2ENR |= RCC_AHB2ENR_GPIOAEN;
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reg = RCC_AHB2ENR;
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(void)reg;
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reg = GPIOA_MODER & ~(0x3u << (NUCLEO_G491_LED_LD2_PIN * 2));
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GPIOA_MODER = reg | (0x1u << (NUCLEO_G491_LED_LD2_PIN * 2));
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GPIOA_PUPDR &= ~(0x3u << (NUCLEO_G491_LED_LD2_PIN * 2));
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}
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static void led_on(void)
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{
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GPIOA_BSRR = (1u << NUCLEO_G491_LED_LD2_PIN);
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}
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static void led_off(void)
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{
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GPIOA_BSRR = (1u << (NUCLEO_G491_LED_LD2_PIN + 16));
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}
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static void busy_delay(uint32_t count)
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{
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volatile uint32_t i;
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for (i = 0; i < count; i++)
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__asm__ volatile ("nop");
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}
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void main(void)
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{
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uint32_t version;
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uint32_t on_ticks, off_ticks;
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hal_init();
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led_init();
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uart_init();
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version = wolfBoot_current_firmware_version();
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printf("TEST APP\r\n");
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printf("App version: %lu\r\n", (unsigned long)version);
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/* v1: slow blink. v2+: fast blink + mark update successful. */
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if (version >= 2) {
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wolfBoot_success();
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printf("Update confirmed.\r\n");
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on_ticks = 200000;
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off_ticks = 200000;
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} else {
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on_ticks = 600000;
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off_ticks = 600000;
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}
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while (1) {
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led_on();
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busy_delay(on_ticks);
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led_off();
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busy_delay(off_ticks);
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}
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}
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#endif /* TARGET_stm32g4 */
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