30a0f69101
putc didn't work well with any byte value on most terminal configuration. It was a bad idea...
80 lines
2.2 KiB
Python
Executable File
80 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# Push specified file to specified device **running the BASIC shell** and verify
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# that the sent contents is correct.
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import argparse
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import os
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import sys
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def sendcmd(fd, cmd):
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# The serial link echoes back all typed characters and expects us to read
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# them. We have to send each char one at a time.
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if isinstance(cmd, str):
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cmd = cmd.encode()
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for c in cmd:
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os.write(fd, bytes([c]))
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os.read(fd, 1)
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os.write(fd, b'\n')
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os.read(fd, 2) # sends back \r\n
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('device')
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parser.add_argument('memptr')
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parser.add_argument('filename')
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args = parser.parse_args()
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try:
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memptr = int('0x' + args.memptr, 0)
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except ValueError:
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print("memptr are has to be hexadecimal without prefix.")
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return 1
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if memptr >= 0x10000:
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print("memptr out of range.")
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return 1
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maxsize = 0x10000 - memptr
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st = os.stat(args.filename)
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if st.st_size > maxsize:
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print("File too big. 0x{:04x} bytes max".format(maxsize))
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return 1
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fd = os.open(args.device, os.O_RDWR)
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with open(args.filename, 'rb') as fp:
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fcontents = fp.read()
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sendcmd(fd, f'm=0x{memptr:04x}')
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os.read(fd, 2) # read prompt
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for i, c in enumerate(fcontents):
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c = bytes([c])
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print('.', end='', flush=True)
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for _ in range(5): # try 5 times
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sendcmd(fd, 'getc')
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os.write(fd, c)
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os.read(fd, 2) # read prompt
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sendcmd(fd, 'print a')
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s = b''
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while True:
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r = os.read(fd, 1) # putc result
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if not r.isdigit():
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break
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s += r
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os.read(fd, 3) # read prompt
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if int(s) == c[0]:
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break
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else:
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print(f"Mismatch at byte {i}! {c} != {r}. Retrying")
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else:
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print("Maximum retries reached, abort")
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return 1
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sendcmd(fd, 'poke m a')
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os.read(fd, 2) # read prompt
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sendcmd(fd, 'm=m+1')
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os.read(fd, 2) # read prompt
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print("Done!")
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os.close(fd)
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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