def read(self, length, timeout=None):
if timeout != self.ser.timeout:
try:
self.ser.timeout = timeout
except ValueError as e:
logging.error("Error setting UART read timeout. Continuing.")
try:
value = self.ser.read(length)
except Exception as e:
logging.error("UART Error:" + str(e))
self.close()
raise
if len(value) != length:
raise Exceptions.SnifferTimeout("UART read timeout (" +
str(self.ser.timeout) +
" seconds).")
if self.useByteQueue:
self.byteQueue.extend(stringToList(value))
return value
def getSerialByte(self, timeout=None):
serialByte = self.uart.readByte(timeout)
if len(serialByte) != 1:
raise Exceptions.SnifferTimeout("Byte read timed out.")
return ord(serialByte)