bon@elektron.ikp.physik.tu-darmstadt.de 0c9d5d8166 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.
2014-01-24 04:59:09 +08:00

46 lines
1.5 KiB
C

/*
* 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 <libopencm3/usb/usbd.h>
/* Commands sent with wBlockNum == 0 as per ST implementation. */
#define CMD_SETADDR 0x21
#define CMD_ERASE 0x41
extern uint32_t app_address;
typedef enum {
DFU_MODE = 0,
UPD_MODE = 1
} dfu_mode_t;
/* dfucore.c - DFU core, common to libopencm3 platforms. */
void dfu_init(const usbd_driver *driver, dfu_mode_t mode);
void dfu_main(void);
/* Device specific functions */
void dfu_check_and_do_sector_erase(uint32_t sector);
void dfu_flash_program_buffer(uint32_t baseaddr, void *buf, int len);
uint32_t dfu_poll_timeout(uint8_t cmd, uint32_t addr, uint16_t blocknum);
void dfu_protect(dfu_mode_t mode);
void dfu_jump_app_if_valid(void);
/* Platform specific function */
void dfu_detach(void);