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trezor-firmware/tools/mem_flashblock.py
2018-08-10 16:05:14 +02:00

48 lines
1.4 KiB
Python
Executable File

#!/usr/bin/env python3
from trezorlib.debuglink import DebugLink
from trezorlib.client import TrezorClient
from trezorlib.transport import enumerate_devices
import sys
sectoraddrs = [0x8000000, 0x8004000, 0x8008000, 0x800c000,
0x8010000, 0x8020000, 0x8040000, 0x8060000,
0x8080000, 0x80a0000, 0x80c0000, 0x80f0000]
sectorlens = [0x4000, 0x4000, 0x4000, 0x4000,
0x8000, 0x10000, 0x10000, 0x10000,
0x10000, 0x10000, 0x10000, 0x10000]
def main():
# List all debuggable TREZORs
devices = [device for device in enumerate_devices() if hasattr(device, 'find_debug')]
# Check whether we found any
if len(devices) == 0:
print('No TREZOR found')
return
# Use first connected device
transport = devices[0]
debug_transport = devices[0].find_debug()
# Creates object for manipulating TREZOR
client = TrezorClient(transport)
debug = DebugLink(debug_transport)
sector = int(sys.argv[1])
f = open(sys.argv[2], "rb")
content = f.read(sectorlens[sector])
if (len(content) != sectorlens[sector]):
print("Not enough bytes in file")
return
debug.flash_erase(sector)
step = 0x400
for offset in range(0, sectorlens[sector], step):
debug.memory_write(sectoraddrs[sector] + offset, content[offset:offset + step], flash=True)
client.close()
if __name__ == '__main__':
main()