mirror of
https://github.com/drasko/open-ameba.git
synced 2024-11-25 07:24:17 +00:00
54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
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#!/usr/bin/env python3
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# -*- coding: cp1251 -*-
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import jlinkarm as jl
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import os, sys, time, struct
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dllfilename = 'D:/MCU/SEGGER/JLink_V612i/JLinkARM.dll'
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if __name__ == '__main__':
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if len(sys.argv) >= 2:
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if sys.argv[1] == '-h':
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print 'Usage: ldram.py ram_all.bin'
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exit(0)
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imgfilename = 'build/bin/ram_all.bin'
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if len(sys.argv) > 1:
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if sys.argv[1]:
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imgfilename = sys.argv[1]
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try:
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ff = open(imgfilename, "rb")
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except:
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print "Error file open " + imgfilename
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exit(1)
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jl.loadJLinkARMdll(dllfilename)
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jl.open()
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if jl.is_connected == 0:
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raise RuntimeError('Jlink not connected')
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jl.exec_command('device Cortex-M3', 0, 0)
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jl.exec_command('endian little', 0, 0)
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jl.tif_select(1)
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jl.set_speed(1000)
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jl.clear_RESET()
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jl.clear_TRST()
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time.sleep(0.01)
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jl.set_RESET()
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jl.set_TRST()
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jl.reset()
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jl.halt()
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jl.set_speed(3500)
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bin = ff.read()
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get_dword = lambda address: struct.unpack('<L', bin[address:address + 4])[0]
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i1_address = 0x0
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i1_length = get_dword(0x10)
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jl.write_mem(0x10000bc8, bin[i1_address + 0x20: i1_address + 0x20 + i1_length])
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i2_address = (get_dword(0x18) & 0xffff) * 1024
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i2_length = get_dword(i2_address) + 0x10
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jl.write_mem(0x10006000, bin[i2_address + 0x10: i2_address + 0x10 + i2_length])
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jl.reset()
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jl.write_u32(0x40000210, 0x20111113)
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jl.go()
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jl.close()
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ff.close()
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exit(0)
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