74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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* This file is part of the Black Magic Debug project.
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*
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* Copyright (C) 2013 Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This program 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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* This program 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, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <libopencm3/cm3/systick.h>
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#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/gpio.h>
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#include <libopencm3/cm3/scb.h>
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#include "usbdfu.h"
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#include "general.h"
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#include "platform.h"
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uint32_t app_address = 0x08004000;
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extern char _ebss[];
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void dfu_detach(void)
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{
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scb_reset_system();
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}
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int main(void)
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{
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volatile uint32_t *magic = (uint32_t *)_ebss;
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rcc_periph_clock_enable(RCC_GPIOA);
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if (gpio_get(GPIOA, GPIO0) ||
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((magic[0] == BOOTMAGIC0) && (magic[1] == BOOTMAGIC1))) {
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magic[0] = 0;
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magic[1] = 0;
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} else {
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dfu_jump_app_if_valid();
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}
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rcc_clock_setup_pll(&rcc_hse_8mhz_3v3[RCC_CLOCK_3V3_168MHZ]);
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/* Assert blue LED as indicator we are in the bootloader */
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rcc_periph_clock_enable(RCC_GPIOD);
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gpio_mode_setup(LED_PORT, GPIO_MODE_OUTPUT,
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GPIO_PUPD_NONE, LED_BOOTLOADER);
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gpio_set(LED_PORT, LED_BOOTLOADER);
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/* Enable peripherals */
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rcc_periph_clock_enable(RCC_OTGFS);
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/* Set up USB Pins and alternate function*/
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gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO11 | GPIO12);
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gpio_set_af(GPIOA, GPIO_AF10, GPIO11 | GPIO12);
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dfu_protect(false);
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dfu_init(&USB_DRIVER);
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dfu_main();
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}
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void dfu_event(void)
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{
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}
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