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stc15: add error reporting for locked MCUs

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It is possible to lock devices with a password against flashing. This
feature is not currently supported by stcgal, so at least output a
sensible message.
This commit is contained in:
Grigori Goronzy 2016-05-13 02:54:43 +02:00
parent cb739e6f94
commit eedf9169a7
1 changed files with 2 additions and 0 deletions
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2
stcgal/protocols.py
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@ -1876,6 +1876,8 @@ class Stc15Protocol(Stc15AProtocol):
packet += bytes([0x00, 0x00, 0x5a, 0xa5]) packet += bytes([0x00, 0x00, 0x5a, 0xa5])
self.write_packet(packet) self.write_packet(packet)
response = self.read_packet() response = self.read_packet()
if response[0] == 0x0f:
raise StcProtocolException("MCU is locked")
if response[0] != 0x05: if response[0] != 0x05:
raise StcProtocolException("incorrect magic in handshake packet") raise StcProtocolException("incorrect magic in handshake packet")