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authorbon@elektron.ikp.physik.tu-darmstadt.de2014-01-06 12:51:09 +0100
committerGareth McMullin2014-01-24 04:59:09 +0800
commit0c9d5d816639c2b4ebce2b234be52e6aac4275a7 (patch)
treea21f5a20d8c8a3890c6086e0335d6649789fcc16 /src/platforms/stlink/dfu_upgrade.c
parentac0fc8216ad086a350f0478b9d83c7a924fcb94b (diff)
Add dfu bootloader update application and use absolute delay for stlink
Hello, appended 3 patches - adds a dfu-bootloader appliaction - uses absolute delays when waiting for pull-up delays on the STLINK (hopefully fixes issue #30) Updating the dfu-bootloader by additional application is helpfull for the STLINK, as for flashing the bootloader by SWDb otherwise jumpers need to be soldered or external SWD is not possible. Use like: - dfu-util -s 0x08002000:leave -D dfu_upgrade.bin - dfu-util -s 0x08000000:leave -D blackmagic_dfu.bin - Push reset buttom and reconnect to enter new dfu bootloader - dfu-util -s 0x08002000:leave -D blackmagic.bin -- Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ---------- >From fae5022c304a8866f056ea66660ac7ce3809dcf8 Mon Sep 17 00:00:00 2001 From: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de> Date: Sun, 20 Oct 2013 15:00:36 +0200 Subject: F1: Prepare to update dfu bootloader via DFU with additional application.
Diffstat (limited to 'src/platforms/stlink/dfu_upgrade.c')
-rw-r--r--src/platforms/stlink/dfu_upgrade.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/src/platforms/stlink/dfu_upgrade.c b/src/platforms/stlink/dfu_upgrade.c
new file mode 100644
index 0000000..2c7c1ad
--- /dev/null
+++ b/src/platforms/stlink/dfu_upgrade.c
@@ -0,0 +1,127 @@
+/*
+ * 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"
+uint32_t app_address = 0x08000000;
+
+static uint8_t rev;
+static uint16_t led_idle_run;
+static uint32_t led2_state = 0;
+
+void dfu_detach(void)
+{
+ /* Disconnect USB cable by resetting USB Device
+ and pulling USB_DP low*/
+ rcc_peripheral_reset(&RCC_APB1RSTR, RCC_APB1ENR_USBEN);
+ rcc_peripheral_clear_reset(&RCC_APB1RSTR, RCC_APB1ENR_USBEN);
+ rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USBEN);
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
+ gpio_clear(GPIOA, GPIO12);
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_OPENDRAIN, GPIO12);
+ /* Pull PB0 (T_NRST) low
+ */
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
+ gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_OPENDRAIN, GPIO0);
+ gpio_clear(GPIOB, GPIO0);
+ SCB_VTOR = 0;
+ scb_reset_core();
+}
+
+void stlink_set_rev(void)
+{
+ int i;
+
+ /* First, get Board revision by pulling PC13/14 up. Read
+ * 11 for ST-Link V1, e.g. on VL Discovery, tag as rev 0
+ * 10 for ST-Link V2, e.g. on F4 Discovery, tag as rev 1
+ */
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
+ gpio_set_mode(GPIOC, GPIO_MODE_INPUT,
+ GPIO_CNF_INPUT_PULL_UPDOWN, GPIO14 | GPIO13);
+ gpio_set(GPIOC, GPIO14 | GPIO13);
+ for (i = 0; i < 100; i++)
+ rev = (~(gpio_get(GPIOC, GPIO14 | GPIO13)) >> 13) & 3;
+
+ switch (rev) {
+ case 0:
+ led_idle_run = GPIO8;
+ break;
+ default:
+ led_idle_run = GPIO9;
+ }
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, led_idle_run);
+}
+
+int main(void)
+{
+
+ rcc_clock_setup_in_hse_8mhz_out_72mhz();
+
+ stlink_set_rev();
+
+ systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
+ systick_set_reload(900000);
+
+ dfu_protect(UPD_MODE);
+
+ /* Handle USB disconnect/connect */
+ /* Just in case: Disconnect USB cable by resetting USB Device
+ * and pulling USB_DP low
+ * Device will reconnect automatically as Pull-Up is hard wired*/
+ rcc_peripheral_reset(&RCC_APB1RSTR, RCC_APB1ENR_USBEN);
+ rcc_peripheral_clear_reset(&RCC_APB1RSTR, RCC_APB1ENR_USBEN);
+ rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USBEN);
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
+ gpio_clear(GPIOA, GPIO12);
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_OPENDRAIN, GPIO12);
+
+ systick_interrupt_enable();
+ systick_counter_enable();
+
+ dfu_init(&stm32f103_usb_driver, UPD_MODE);
+
+ dfu_main();
+}
+
+void sys_tick_handler(void)
+{
+ if (rev == 0) {
+ gpio_toggle(GPIOA, led_idle_run);
+ } else {
+ if (led2_state & 1) {
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, led_idle_run);
+ gpio_set(GPIOA, led_idle_run);
+ } else {
+ gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
+ GPIO_CNF_INPUT_ANALOG, led_idle_run);
+ }
+ led2_state++;
+ }
+}