Embedded Files
Wecome To The New Home Of TheEPROM9
For When The Info Does Not Exist
For When The Info Does Not Exist
Sometimes you want info on a computer, schematics code. Well sometimes the machine has not generated the interest of enough technical people to do the work to reverse engineer & preserve the technical information about a computer so it can be rebuilt in software or hardware. Let through my hat in the ring & add to the information pool.
This is a RAM pack for a CASIO PB-100 or similar pocket computer. It is 1KB 4-BIT unit that before this post there was no technical information on. Just as a note I have not had the PCB's manufactured yet so I have not tested them, if ya beat me to it, let me know so I can make any needed fixes.. The information included in this post includes:
Pin out's
Schematics
PCB Layouts
KiCAD Files
Photos
Manual Paper Notes
This is a RAM pack for a CASIO PB-700 or similar pocket computer. It is 4KB 4-BIT unit that before this post there was no technical information on. Just as a note I have not had the PCB's manufactured yet so I have not tested them, if ya beat me to it, let me know so I can make any needed fixes.. The information included in this post includes:
Pin out's
Schematics
PCB Layouts
KiCAD Files
Photos
Manual Paper Notes
This RAM pack is for the CASIO FX-720P or similar pocket computer. This unit is 2KB 4-BIT memory with battery backup that is user removable. The RAM pack also came in 4KB variants, I do not have one of these yet.
The idea behind it was so you could have several units you could have custom software on. It would also allow the user to hold more total data than one machine could hold. It would also facilitate easy transfer between machines.
I am yet to create the schematic & board layout however I do have internal photos of the unit currently.
This RAM pack is for the CASIO FX-730P as well as some organizers. This one uses an 8-BIT chip & is 8KB, this form factor of RAM card goes all the way up to 32KB for the later more high end pocket computers. I do not own one of these RAM cards however someone did a teardown of one online & I used a CASIO SF-3000 to figure out the pin out using its internal RAM chip, then some educated guess where the last traces whent, I am quite proud of this one. Once again if you find any mistakes let me know.
CASIO USB Tape Emulator
CASIO USB Tape Emulator
This project is in its early stages but the main goal is so I can save data & programs both off the computer & back onto the computer from a PC running ether Linux or Windows & maybe one day MAC OS. Linux support will be very important with the way Windows is going. My go to CASIO FX-730P is my main test bed but I do have a few other machines I can test with.
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