54 lines
2.1 KiB
Python
Executable file
54 lines
2.1 KiB
Python
Executable file
#!/usr/bin/env python3
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import time
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import string
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def _print_line(write, ts, line, width=16):
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h,m,s,ms = int(ts//3600), int((ts//60)%60), int(ts%60), int((ts%1.0) * 1000)
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timestamp = f'{h: 3d}:{m:02d}:{s:02d}:{ms:03d}'
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line = list(line) + [None]*(width-len(line))
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hexcol = '\033[94m'
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col = lambda b, s: s if b != 0 else f'\033[91m{s}{hexcol}'
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hexfmt = ' '.join(
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' '.join(col(b, f'{b:02x}') if b is not None else ' ' for b in line[i*8:i*8+8])
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for i in range(1 + (len(line)-1)//8))
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asciifmt = ''.join(chr(c) if c is not None and chr(c) in string.printable else '.' for c in line)
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write(f'\033[38;5;244m{timestamp} {hexcol}{hexfmt} \033[38;5;244m|\033[92m{asciifmt}\033[38;5;244m|\033[0m', flush=True, end='')
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def hexcom(write, ser, width=16, split=False):
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current_line = b''
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start = time.time()
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while ser.is_open:
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data = ser.read_all() # non-blocking, flushes buffer
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if not data:
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data = ser.read(1) # blocking
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ts = time.time()
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write('\033[2K\r', end='')
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current_line += data
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foo = current_line.split(b'\0') if split else [current_line]
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for i, packet in enumerate(foo):
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if len(foo) > 1 and i < len(foo)-1:
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packet += b'\0'
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while len(packet) > width:
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chunk, packet = packet[:width], packet[width:]
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_print_line(write, ts-start, chunk, width=width)
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write()
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_print_line(write, ts-start, packet, width=width)
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if i < len(foo)-1:
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write()
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current_line = packet
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if __name__ == '__main__':
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import argparse
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import serial
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parser = argparse.ArgumentParser()
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parser.add_argument('serial')
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parser.add_argument('baudrate')
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parser.add_argument('-w', '--width', type=int, default=16, help='Number of bytes to display in one line')
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parser.add_argument('-s', '--split', action='store_true', help='Split output on null bytes')
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args = parser.parse_args()
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ser = serial.Serial(args.serial, args.baudrate)
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hexcom(print, ser, width=args.width, split=args.split)
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