Jeff Epler
5d9c050261
I've successfully written a full-disk image sent over the serial port! it was not reliable at 307200 so I bumped the speed down to 19200. probably a higher rate like 115200 would be OK? Or more if the read-loop were re-coded in asm
31 lines
687 B
Python
Executable file
31 lines
687 B
Python
Executable file
#!/usr/bin/python3
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import time
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import sys
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import serial
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port = serial.serial_for_url('spy:////dev/ttyUSB0',
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19200
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)
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NUM_TRACKS = 77
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NUM_SECTORS = 26
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SECTOR_SIZE = 128
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TLEN = NUM_SECTORS * SECTOR_SIZE
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XLEN = NUM_TRACKS * TLEN
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print(f"track len {TLEN}")
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with open(sys.argv[1], 'rb') as f:
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content = f.read()
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if len(content) != XLEN:
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raise SystemExit(f"Expected {XLEN} bytes but read {len(content)}")
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print("start rw.exe on xerox")
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for i in range(NUM_TRACKS):
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trackdata = content[i*TLEN:(i+1)*TLEN]
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print(len(trackdata))
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c = port.read(1)
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if c != b'T':
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raise SystemExit(f"Expected b'T' got {c}")
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print(f"sending track {i}")
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port.write(trackdata)
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