diff options
Diffstat (limited to 'rpi2/app/comm_arduino.py')
| -rw-r--r-- | rpi2/app/comm_arduino.py | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/rpi2/app/comm_arduino.py b/rpi2/app/comm_arduino.py index 884c325..b34f1d1 100644 --- a/rpi2/app/comm_arduino.py +++ b/rpi2/app/comm_arduino.py @@ -25,10 +25,7 @@ class Ctrl(object): def is_control(b): return (b & 0xC0) == 0x80 -def get_data_length(b): - if (b & 0xC0) != 0x80: - return 0 - return (b & 0x3f) - 4 +DATA_DEBUG_PREFIX = b'\xC0' def configure_serial(path): # Disables parameters which are not controlled by pyserial @@ -63,8 +60,8 @@ class SerialState(object): while True: try: return self.ser.read() - except serial.SerialTimeoutException: - pass + except serial.SerialTimeoutException as e: + _logger.warn('Read timeout: %s', e) def handle_one(self, ser): b = self._read_one(ser) @@ -192,7 +189,7 @@ def handle_serial(path): while True: try: data = state.handle_one(ser) - if data and data[0] == b'\x80': # Debug packet + if data and data.startswith(DATA_DEBUG_PREFIX): handle_data_debug(data[1:]) elif data: _logger.info('PI DATA: %r', data) |