ASCII-X flash tool

Project information

Author: Laurens Holst laurens@grauw.nl
Site: https://www.grauw.nl/projects/ascii-x-flash/
Source: https://hg.sr.ht/~grauw/ascii-x-flash
Support: https://www.msx.org/forum/msx-talk/development/ascii-x-flashrom-cartridge
License: MIT

Flash tool for ASCII-X FlashROM cartridges.

Downloads

System requirements

MSX, MSX2, MSX2+ or MSX turboR
128K main RAM
16K video RAM
MSX-DOS 2

Usage instructions

Run ASCIIXF from MSX-DOS 2, specifying the ROM file to flash on the command line.

Warning: Make sure to have a means to bypass booting the ROM so you can get back to MSX-DOS2 to erase the cartridge. E.g. by implementing a boot bypass key in your ROM, by using a slot expander with slot disable switches, or using Nyyrikki’s Boot Manager.

Usage:

asciixf [options] <file.rom>

Options:

/s Slot number (required). Format: p or p-s. Specify up to 8 for bulk flashing.
/e Erase flash ROM.
/p Program flash ROM from file.
/v Verify flash ROM with file.
/d Dump flash ROM to file.
/i Display flash ROM information.

Example:

asciixf /s2 /e /p /v example.rom

This erases, programs and verifies a ROM to the ASCII-X cartridge in slot 2.

Release notes

Version 1.1 — 2025-05-12
- Support for bulk flashing multiple slots.
- Implemented dump function.
- Improved flash error handling.
- Warning when file exceeds FlashROM capacity.
- Reduced progress dot frequency (every 64K).
- Fixed programming files whose size is not multiple of 256.
Version 1.0 — 2025-03-09
- Initial release