XMODEM Protocol

The NC100 ROM software and CP/NC's RX command use the original XMODEM protocol with a packet size of 128 bytes and an 8-bit checksum. They do not support XMODEM-CRC, XMODEM-1K, or any other extensions.

Once you have uploaded the operating system to your computer, feel free to install a more sophisticated communication package. A pre-patched version of the QTERM terminal program can be found in the download area.

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