Casio magnetic data cards for the Pro fx-1

[blackjetrock]

I've now managed to make about 20 of these cards. They take about 30 minutes to mill and about 3 or 4 minutes to clean up and test. I've also found that you don't seem to need all of the slots. The original card had 85 slots, I've found that it works fine, or seems to, with just 54. i think there's a lot of card data capacity that isn't used.
I've also managed to reverse engineer the data on the card from scope traces and found the keycodes:

Top row (MAC, GOTO, ...) Cx
2nd row Bx
3rd row Ax

Numbers Fx
Ex keys (MR, M+, ...) Dx

Data written to card in reverse step order, i.e. step 127 first.
Bits within bytes written in reverse order.
So ironically the Ex keycodes could have been encoded as hex Ex, but weren't.

Anyone out there with a PRO fx-1 fancy testing some of these cards? I'm interested to see if they work in other machines and if a program recorded on my machine can be read in others.

Andrew