This is a long way from being finished, but I’ve been playing with a parallel interface (see my previous entry) to an Arduno, then using the Arduino SD card interface to make the card’s contents available to the 6800:
The Arduino is at the top, then a serial board, then the parallel board. The current software has a library on the 6800 side to read files, do directories, etc. What is still being worked on is the ability to mount a filesystem as a FLEX disk. Most of the Arduino code is done but I’m busy getting ready for VCF MW and haven’t finished the FLEX drivers yet (partially written). The low level code for the drivers will be all in the EPROM on the board so the code will be available for other software to interact with the SD card.
I’m cleaning up the code and working on a few minor bugs, but this will definitely be on display at VCF MW. As time permits, I’ll slowly be working on the code there too. If there are any FLEX experts there, please stop by so we can talk.
Oh, the blank 6800 CPU and motherboards have shipped but I won’t get them for another week. Once they arrive, getting some built/tested in time for VCF MW is high priority.