def ping_check(self):
# check connection is working
assert self.dev.session_key, 'not encrypted?'
req = b'1234 Electrum Plugin 4321' # free up to 59 bytes
try:
echo = self.dev.send_recv(CCProtocolPacker.ping(req))
assert echo == req
except:
raise RuntimeError("Communication trouble with Coldcard")
def ping_check(self):
# check connection is working
assert self.dev.session_key, 'not encrypted?'
req = b'1234 Electrum Plugin 4321' # free up to 59 bytes
try:
echo = self.dev.send_recv(CCProtocolPacker.ping(req))
assert echo == req
except:
raise RuntimeError("Communication trouble with Coldcard")
def usb_test(single):
"""Test USB connection (debug/dev)"""
with get_device() as dev:
rng = []
rng.extend(range(55, 66)) # buggy lengths are around 64
rng.extend(range(1013, 1024))
# we have 4 bytes of overhead (args) for ping cmd, so this will be max-length
rng.extend(range(MAX_MSG_LEN - 10, MAX_MSG_LEN - 4))
#print(repr(rng))
for i in rng:
print("Ping with length: %d" % i, end='')
body = os.urandom(i) if single is None else bytes([single] * i)
rb = dev.send_recv(CCProtocolPacker.ping(body))
assert rb == body, "Fail @ len: %d, got back %d bytes\n%r !=\n%r" % (
i, len(rb), b2a_hex(body), b2a_hex(rb))
print(" Okay")
