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49 lines
1.2 KiB
Python
49 lines
1.2 KiB
Python
import serial
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import time
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try:
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from serial.tools.list_ports import comports
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except ImportError:
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raise serial.serialutil.SerialException
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test_comx = 'COM66'
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test_baudrate = 2000000
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test_maxsize = 10*1024*1024
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test_data = '0xAA' * 4096
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test_serial = serial.Serial(test_comx, test_baudrate, timeout = 1)
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def test_cdc_out():
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send_count = 0
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begin = time.time()
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while True:
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if send_count < test_maxsize:
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txdatalen = test_serial.write(test_data.encode("utf-8"))
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send_count += txdatalen
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else:
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print("cdc out speed %f MB/s" %(send_count//1024//1024/(time.time() - begin)))
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break
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def test_cdc_in():
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read_count = 0
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begin = time.time()
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while True:
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if read_count < test_maxsize:
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data = test_serial.read(test_maxsize).decode(encoding='utf-8',errors='ignore')
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read_count += len(data)
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else:
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print("cdc in speed %f MB/s" %(read_count//1024//1024/(time.time() - begin)))
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break
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if __name__ == '__main__':
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print('test cdc out speed')
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test_serial.setDTR(0)
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test_cdc_out()
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print('test cdc in speed')
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test_serial.setDTR(1)
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test_cdc_in() |