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59 lines
1.6 KiB
59 lines
1.6 KiB
#!/usr/bin/env python3 |
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# |
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# Copyright (c) 2019 Intel Corporation. |
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# |
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# SPDX-License-Identifier: Apache-2.0 |
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""" |
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Script to capture tracing data with UART backend. |
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""" |
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import sys |
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import serial |
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import argparse |
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def parse_args(): |
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global args |
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parser = argparse.ArgumentParser( |
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description=__doc__, |
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formatter_class=argparse.RawDescriptionHelpFormatter, allow_abbrev=False) |
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parser.add_argument("-d", "--serial_port", required=True, |
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help="serial port") |
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parser.add_argument("-b", "--serial_baudrate", required=True, |
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help="serial baudrate") |
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parser.add_argument("-o", "--output", default='channel0_0', |
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required=False, help="tracing data output file") |
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args = parser.parse_args() |
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def main(): |
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parse_args() |
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serial_port = args.serial_port |
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serial_baudrate = args.serial_baudrate |
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output_file = args.output |
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try: |
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ser = serial.Serial(serial_port, serial_baudrate) |
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ser.isOpen() |
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except serial.SerialException as e: |
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sys.exit("{}".format(e)) |
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print("serial open success") |
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#enable device tracing |
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ser.write("enable\r".encode()) |
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with open(output_file, "wb") as file_desc: |
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while True: |
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count = ser.inWaiting() |
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if count > 0: |
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while count > 0: |
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data = ser.read() |
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file_desc.write(data) |
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count -= 1 |
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ser.close() |
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if __name__=="__main__": |
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try: |
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main() |
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except KeyboardInterrupt: |
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print('Data capture interrupted, data saved into {}'.format(args.output)) |
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sys.exit(0)
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