32 lines
815 B
Python
32 lines
815 B
Python
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#测试Python控制RK3568开发板的串口功能：
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#①发送和接收功能
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#②需要完成接收的异步操作，且选择占用最小的方式
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import time
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import serial
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import serial.tools.list_ports
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class Uart:
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def SerialSet(self, port, baudrate):
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ser = serial.Serial(port, baudrate, 8, 'N', 1)
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flag = ser.is_open
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if flag:
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print('success')
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return ser
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else:
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print('Open Error')
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def SerialSend(self, ser):
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# 串口发送 ABCDEFG，并输出发送的字节数。
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write_len = ser.write("ABCDEFG\r\n".encode('utf-8'))
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print("串口发出{}个字节。".format(write_len))
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# ser.close()
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uart = Uart()
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ser = uart.SerialSet("/dev/ttyS4", 115200)
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while True:
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uart.SerialSend(ser)
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time.sleep(1)
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