236 lines
6.9 KiB
Python
Executable File
236 lines
6.9 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# stm32_mem.py: STM32 memory access using USB DFU class
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# Copyright (C) 2011 Black Sphere Technologies
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# Copyright (C) 2017 Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de)
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# Written by 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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from time import sleep
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import struct
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from sys import stdout, argv
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import argparse
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import usb
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import dfu
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CMD_GETCOMMANDS = 0x00
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CMD_SETADDRESSPOINTER = 0x21
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CMD_ERASE = 0x41
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def stm32_erase(dev, addr):
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erase_cmd = struct.pack("<BL", CMD_ERASE, addr)
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dev.download(0, erase_cmd)
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while True:
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status = dev.get_status()
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if status.bState == dfu.STATE_DFU_DOWNLOAD_BUSY:
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sleep(status.bwPollTimeout / 1000.0)
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if status.bState == dfu.STATE_DFU_DOWNLOAD_IDLE:
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break
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def stm32_set_address(dev, addr):
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set_address_cmd = struct.pack("<BL", CMD_SETADDRESSPOINTER, addr)
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dev.download(0, set_address_cmd)
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while True:
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status = dev.get_status()
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if status.bState == dfu.STATE_DFU_DOWNLOAD_BUSY:
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sleep(status.bwPollTimeout / 1000.0)
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if status.bState == dfu.STATE_DFU_DOWNLOAD_IDLE:
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break
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def stm32_write(dev, data):
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dev.download(2, data)
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while True:
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status = dev.get_status()
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if status.bState == dfu.STATE_DFU_DOWNLOAD_BUSY:
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sleep(status.bwPollTimeout / 1000.0)
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if status.bState == dfu.STATE_DFU_DOWNLOAD_IDLE:
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break
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def stm32_read(dev):
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data = dev.upload(2, 1024)
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while True:
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status = dev.get_status()
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if status.bState == dfu.STATE_DFU_DOWNLOAD_BUSY:
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sleep(status.bwPollTimeout / 1000.0)
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if status.bState == dfu.STATE_DFU_UPLOAD_IDLE:
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break
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return data
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def stm32_manifest(dev):
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dev.download(0, "")
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while True:
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try:
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status = dev.get_status()
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except:
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return
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sleep(status.bwPollTimeout / 1000.0)
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if status.bState == dfu.STATE_DFU_MANIFEST:
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break
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def stm32_scan(args, test):
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devs = dfu.finddevs()
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bmp = 0
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if not devs:
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if test == True:
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return
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print "No DFU devices found!"
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exit(-1)
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for dev in devs:
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try:
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dfudev = dfu.dfu_device(*dev)
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except:
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return 0
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man = dfudev.handle.getString(dfudev.dev.iManufacturer, 30)
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if man == "Black Sphere Technologies": bmp = bmp + 1
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if bmp == 0 :
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if test == True:
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return
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print "No compatible device found\n"
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exit(-1)
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if bmp > 1 and not args.serial_target :
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if test == True:
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return
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print "Found multiple devices:\n"
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for dev in devs:
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dfudev = dfu.dfu_device(*dev)
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man = dfudev.handle.getString(dfudev.dev.iManufacturer, 30)
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product = dfudev.handle.getString(dfudev.dev.iProduct, 96)
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serial_no = dfudev.handle.getString(dfudev.dev.iSerialNumber, 30)
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print "Device ID:\t %04x:%04x" % (dfudev.dev.idVendor, dfudev.dev.idProduct)
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print "Manufacturer:\t %s" % man
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print "Product:\t %s" % product
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print "Serial:\t\t %s\n" % serial_no
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print "Select device with serial number!"
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exit (-1)
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for dev in devs:
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dfudev = dfu.dfu_device(*dev)
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man = dfudev.handle.getString(dfudev.dev.iManufacturer, 30)
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product = dfudev.handle.getString(dfudev.dev.iProduct, 96)
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serial_no = dfudev.handle.getString(dfudev.dev.iSerialNumber, 30)
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if args.serial_target:
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if man == "Black Sphere Technologies" and serial_no == args.serial_target: break
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else:
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if man == "Black Sphere Technologies": break
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print "Device ID:\t %04x:%04x" % (dfudev.dev.idVendor, dfudev.dev.idProduct)
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print "Manufacturer:\t %s" % man
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print "Product:\t %s" % product
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print "Serial:\t\t %s" % serial_no
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if args.serial_target and serial_no != args.serial_target:
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print "Serial number doesn't match!\n"
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exit(-2)
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return dfudev
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if __name__ == "__main__":
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print
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print "USB Device Firmware Upgrade - Host Utility -- version 1.2"
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print "Copyright (C) 2011 Black Sphere Technologies"
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print "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>"
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print
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parser = argparse.ArgumentParser()
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parser.add_argument("progfile", help="Binary file to program")
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parser.add_argument("-s", "--serial_target", help="Match Serial Number")
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parser.add_argument("-a", "--address", help="Start address for firmware")
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parser.add_argument("-m", "--manifest", help="Start application, if in DFU mode", action='store_true')
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args = parser.parse_args()
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dfudev = stm32_scan(args, False)
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try:
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state = dfudev.get_state()
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except:
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if args.manifest : exit(0)
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print "Failed to read device state! Assuming APP_IDLE"
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state = dfu.STATE_APP_IDLE
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if state == dfu.STATE_APP_IDLE:
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dfudev.detach()
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dfudev.release()
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print "Invoking DFU Device"
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timeout = 0
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while True :
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sleep(0.5)
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timeout = timeout + 0.5
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dfudev = stm32_scan(args, True)
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if dfudev: break
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if timeout > 5 :
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print "Error: DFU device did not appear"
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exit(-1)
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if args.manifest :
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stm32_manifest(dfudev)
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print "Invoking Application Device"
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exit(0)
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dfudev.make_idle()
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file = open(args.progfile, "rb")
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bin = file.read()
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product = dfudev.handle.getString(dfudev.dev.iProduct, 64)
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if args.address :
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start = int(args.address, 0)
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else :
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if "F4" in product:
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start = 0x8004000
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else:
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start = 0x8002000
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addr = start
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while bin:
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print ("Programming memory at 0x%08X\r" % addr),
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stdout.flush()
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try:
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# STM DFU bootloader erases always.
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# BPM Bootloader only erases once per sector
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# To support the STM DFU bootloader, the interface descriptor must
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# get evaluated and erase called only once per sector!
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stm32_erase(dfudev, addr)
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except:
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print "\nErase Timed out\n"
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break
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try:
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stm32_set_address(dfudev, addr)
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except:
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print "\nSet Address Timed out\n"
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break
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stm32_write(dfudev, bin[:1024])
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bin = bin[1024:]
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addr += 1024
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file.seek(0)
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bin = file.read()
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len = len(bin)
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addr = start
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print
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while bin:
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try:
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stm32_set_address(dfudev, addr)
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data = stm32_read(dfudev)
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except:
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# Abort silent if bootloader does not support upload
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break
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print ("Verifying memory at 0x%08X\r" % addr),
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stdout.flush()
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if len > 1024 :
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size = 1024
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else :
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size = len
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if bin[:size] != bytearray(data[:size]) :
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print ("\nMitmatch in block at 0x%08X" % addr)
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break;
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bin = bin[1024:]
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addr += 1024
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len -= 1024
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if len <= 0 :
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print "\nVerified!"
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stm32_manifest(dfudev)
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print "All operations complete!\n"
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