Python代码无法正确读取串行数据

Question

So I am writing a program to Read and Write data to and from a Serial Port. Said port is setup where I know the specific byte codes it sends for the different states it is in. However, I am having an issue with my Python script that should be reading the Serial data and printing it to the screen.

Here is the setup for the Port, and my ReadLine method:

class SerialCommunicator:

    def __init__(self, *args, **kwargs):    
        self.port = serial.Serial("/dev/ttyUSB0")
        self.portSettings = {
            'baudrate' : 57600,
            'bytesize' : 8,
            'parity' : 'N',
            'stopbits' : 1,
            'timeout' : 0,
            'inter_byte_timeout' : None,
            'write_timeout' : None,
            'xonxoff' : False,
            'rtscts' : False,
            'dsrdtr' : False }
        self.port.apply_settings(self.portSettings)
        while True:
            output = self.ReadLine()
            if (output != ''):
                print(output)

    def ReadLine(self):
        readValue = ""
        isReading = True
        while isReading:
            currentRead = self.port.read()
            currentRead = currentRead.decode()
            readValue += currentRead
            if currentRead == '\r' or currentRead = '':
                isReading = False
                return readValue

So when I run this code, the output I am expecting aa garbled mess. I am expecting two output strings from the serial port running on standby:

T12F8B0A2200F8

and

T1610FFA20

The second output is always coming out correctly. However the first one either has the head of the code cut off, or it's sliced in the middle, or it's tail is missing. I need the code to be properly intact because I use the code in reading what state the device is in. What could be my problem?

EDIT: For those curious, yes I have tried adjusting the baudrate. However with a baudrate higher than 57600 I get no output data at all.

Answer 1

So it turns out my problem was with my timeout value. Setting 'timeout' : 1 fixed my problem :)