-def recvByteTO(b): #with timeout
- j = 0
- i = tty.read()
- while len(i)==0 and j < 400:
- time.sleep(0.03)
- i = tty.read()
- j = j + 1
- if j == 400:
- print "ack it!"
- sendByte(0x23)
- if(recvByte() != 0xaa):
- raise Exception #ok, something really failed
- else:
- if(ord(i) != b):
- raise Exception
-