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Diffstat (limited to 'src/platforms/f4discovery/usbdfu.c')
-rw-r--r--src/platforms/f4discovery/usbdfu.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/src/platforms/f4discovery/usbdfu.c b/src/platforms/f4discovery/usbdfu.c
new file mode 100644
index 0000000..998628b
--- /dev/null
+++ b/src/platforms/f4discovery/usbdfu.c
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2013 Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * 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 <string.h>
+#include <libopencm3/cm3/systick.h>
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/gpio.h>
+#include <libopencm3/cm3/scb.h>
+
+#include "usbdfu.h"
+
+void dfu_detach(void)
+{
+ /* USB device must detach, we just reset... */
+ scb_reset_system();
+}
+
+int main(void)
+{
+ /* Check the force bootloader pin*/
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
+ if(!gpio_get(GPIOA, GPIO0))
+ dfu_jump_app_if_valid();
+
+ dfu_protect_enable();
+
+ /* Set up clock*/
+ rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_168MHZ]);
+ systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
+ systick_set_reload(2100000);
+
+ systick_interrupt_enable();
+ systick_counter_enable();
+
+ /* Handle LEDs */
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN);
+ gpio_clear(GPIOD, GPIO12 | GPIO13 | GPIO14 |GPIO15);
+ gpio_mode_setup(GPIOD, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
+ GPIO12 | GPIO13 | GPIO14 |GPIO15);
+
+ /* Set up USB*/
+ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
+ rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN);
+
+ /* Set up USB Pins and alternate function*/
+ gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE,
+ GPIO9 | GPIO10 | GPIO11 | GPIO12);
+ gpio_set_af(GPIOA, GPIO_AF10, GPIO9 | GPIO10| GPIO11 | GPIO12);
+ dfu_init(&stm32f107_usb_driver);
+
+ dfu_main();
+}
+
+
+void sys_tick_handler(void)
+{
+ gpio_toggle(GPIOD, GPIO12); /* Green LED on/off */
+}
+