fpga_reader.py 文件源码

def main():
    opts = dict(
        baudrate=115200,
        parity=serial.PARITY_NONE,
        stopbits=serial.STOPBITS_ONE,
        bytesize=serial.EIGHTBITS,
        rtscts=False,
        dsrdtr=False,
        xonxoff=False
    )
    with serial.Serial('/dev/ttyUSB0', **opts) as port:
        while True:
            time.sleep(0.2)
            port.write(b'\x1b')
            res = port.read(6)

            led, segs = extract(res)
            print(json.dumps({
                'led': led,
                'segs': segs
            }))
            sys.stdout.flush()