Very nice! I saw the way that you have different paths for the data lines in your schematic. Clever. :) In short order I'll have my first Sharp PC, and I may have to build one of these. Probably less than $50 for all of the parts. Is the Keil compiler free? I saw your note about keeping the +5 volt separate, what about only allowing power in from the Disk Drive emulator so you could save your batteries on the PC? And the NUCLEO-L432KC is the way to go. I did a weigh scale board for fork trucks that transmitted the weight on the forks via an Adafruit 900Mhz Feather board. It also used level converters like what you have. Finding the correct feather footprint for KiCad was a problem, but it wasn't much more than tying the footprints together.
Hi - nice to hear interest in my project! Yes, Keil is for free. I'm using the online version: studio.keil.arm.com/auth/login/. I've also moved schematics to KiCad, but still reviewing it before publishing on GitHub. I've also selected a convenient PCB manufacturer (AISLER, in Europe), which estimated the build with SMD components for 46 Euro, for a single board, 72 for 5 (L432KC excluded; it's about 15 Euro each). But, I'm still reluctant to go, as it's my first PCB make project and I'm not quite sure it's 100% correct. I'm looking for reviewers...
Hi , the commands implemented so far are DSKF, FILES, LOAD and SAVE. I'm now concentrating on the move to the pcb production. I also hope that, with the physical hardware available to more people, some developer would jump onboard along and help with the implementation and debugging. But if you meant whether the original drive supports INPUT# and PRINT#, the answer is yes. See the manual (github.com/ffxx68/Sharp_ce140f_emul/blob/main/CE140F_OPERATION_MANUAL_EN_DE_FR-compressed.pdf)
@@ffxx68 Ah ha! I didn't know where those commands were documented (since they aren't in the main manual). I just got myself at PC-1403 so I'm looking forward to trying out your code on Arduino.
Great news on the progress! Absolutely amazing that there will finally be an alternative to the extremely rare CE-140F.
hopefully I can finalize a pcb version too.. but it's not close yet (support welcome!)
Great idea!
Very nice! I saw the way that you have different paths for the data lines in your schematic. Clever. :) In short order I'll have my first Sharp PC, and I may have to build one of these. Probably less than $50 for all of the parts. Is the Keil compiler free?
I saw your note about keeping the +5 volt separate, what about only allowing power in from the Disk Drive emulator so you could save your batteries on the PC?
And the NUCLEO-L432KC is the way to go. I did a weigh scale board for fork trucks that transmitted the weight on the forks via an Adafruit 900Mhz Feather board. It also used level converters like what you have. Finding the correct feather footprint for KiCad was a problem, but it wasn't much more than tying the footprints together.
Hi - nice to hear interest in my project! Yes, Keil is for free. I'm using the online version: studio.keil.arm.com/auth/login/. I've also moved schematics to KiCad, but still reviewing it before publishing on GitHub. I've also selected a convenient PCB manufacturer (AISLER, in Europe), which estimated the build with SMD components for 46 Euro, for a single board, 72 for 5 (L432KC excluded; it's about 15 Euro each). But, I'm still reluctant to go, as it's my first PCB make project and I'm not quite sure it's 100% correct. I'm looking for reviewers...
@@ffxx68 Post it when you feel that it's ready and we'll take a look. As for getting it right the first time, I wouldn't know what that feels like. :)
github.com/ffxx68/Sharp_ce140f_emul/tree/main/KiCad
Is there an equivalent of INPUT# PRINT# for reading and writing data from the floppy disk or is only load/save of programs supported?
Hi , the commands implemented so far are DSKF, FILES, LOAD and SAVE. I'm now concentrating on the move to the pcb production. I also hope that, with the physical hardware available to more people, some developer would jump onboard along and help with the implementation and debugging. But if you meant whether the original drive supports INPUT# and PRINT#, the answer is yes. See the manual (github.com/ffxx68/Sharp_ce140f_emul/blob/main/CE140F_OPERATION_MANUAL_EN_DE_FR-compressed.pdf)
@@ffxx68 Ah ha! I didn't know where those commands were documented (since they aren't in the main manual). I just got myself at PC-1403 so I'm looking forward to trying out your code on Arduino.