if status == DOWNLOAD_CMD:
msginfo("Download mode command sent.")
sys.exit(0)
else:
msgerr("Failed to send command mode.")
sys.exit(-1)
fd = open(blfile, 'rb')
msginfo("Pinging target...");
ser.send(ping_command())
if ser.recv(5) != REPLY_PACKET:
msgerr("Device didn't reply or in wrong mode.")
fd.close()
ser.close()
sys.exit(-1)
addr = UPLOAD_ADDR
size = UPLOAD_BLOCK_SIZE
buf = fd.read(UPLOAD_BLOCK_SIZE)
size = len(buf)
while size > 0:
msginfo("Writing {0} bytes @ 0x{1:08x} ...".format(size, addr))
packet = write_command(addr, buf, size)
addr += size
ser.send(packet)
if ser.recv(5) != REPLY_PACKET:
ser.send(packet)
status = ser.recv(1)
if (len(status) == 0):
msgerr("Reply packet size is 0 bytes. Something is wrong.")
break
if (status == '\x42'):
msgerr("Unknown reply code.")
continue
reply = ser.recv(len(packet) - 1)
status = reply[-5]
if (status == '\x07'):
msgerr("NV item {0} is read-only.".format(item_num))
elif (status == '\x05'):
msgerr("NV item {0} is inactive.".format(item_num))
else:
msginfo("Wrote NV item number {0}.".format(item_num))
fd.close()
ser.close()
msginfo("Done!")
if __name__ == "__main__":
main(sys.argv[1:])
