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113
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1 #!/usr/bin/python
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2
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115
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3 import argparse, sys
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4 import stlink
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113
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5
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6 def hex2int(s):
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115
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7 if s.startswith('0x'):
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8 s = s[2:]
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9 return int(s, 16)
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10 return int(s)
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113
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11
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12 parser = argparse.ArgumentParser(description='ST-link flash utility')
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115
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13 subparsers = parser.add_subparsers(title='commands',
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14 description='possible commands', dest='command')
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15
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16 readparser = subparsers.add_parser('read', help='read flash contents')
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17 readparser.add_argument('filename', type=argparse.FileType(mode='wb'))
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18 readparser.add_argument('address', type=hex2int)
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19 readparser.add_argument('size', type=hex2int)
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20
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21 writeparser = subparsers.add_parser('write', help='write flash contents')
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22 writeparser.add_argument('filename', type=argparse.FileType(mode='rb'))
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23 writeparser.add_argument('address', type=hex2int)
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24
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25 eraseparser = subparsers.add_parser('erase', help='erase flash contents')
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113
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26
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27 args = parser.parse_args()
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28 print(args)
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115
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29 if not args.command:
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30 parser.print_usage()
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31 sys.exit(1)
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113
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32
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115
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33 # In any command case, open a device:
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34 stl = stlink.STLink()
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35 try:
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36 stl.open()
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37 except stlink.STLinkException as e:
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38 print(e)
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39 sys.exit(2)
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40
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41 # Enter the right mode:
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42 if stl.CurrentMode == stlink.DFU_MODE:
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43 stl.exitDfuMode()
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44
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45 if stl.CurrentMode != stlink.DEBUG_MODE:
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46 stl.enterSwdMode()
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113
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47
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115
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48 if stl.ChipId != 0x10016413:
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49 print('Only working on stm32f4discovery board for now.')
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50 sys.exit(2)
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51
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115
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52 if args.command == 'read':
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53 print('Reading!')
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54 elif args.command == 'write':
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55 content = args.filename.read()
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56 print('Write flash :)', len(content))
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57 stl.writeFlash(args.address, content)
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58 elif args.command == 'erase':
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59 print('erase')
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60 else:
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61 print('unknown command', args.command)
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62
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63 stl.exitDebugMode()
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64
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