Thomas Cherryhomes#FujiNet - a WiFi Adapter for many #retrocomputing and #retrogaming systems. Coming soon for #MSX.
Also for #Atari8bit, #Apple2, #ColecoAdam, #TRS80CoCo, #MSDOS, #Commodore, and more.
I recently gave a talk at #VCFSoCal2026 on the state of the #FujiNet WiFi Adapter for #retrocomputing and #retrogaming systems
https://www.youtube.com/watch?v=XTjV-xR64O8
Platforms covered: #Atari8bit #Apple2 #TRS80CoCo #MSDOS #MSX #Intellivision
also new apps, testing and volunteering!
Thomas Cherryhomes / State of FujiNet - 2026 VCF SoCal Presentation
FozzTexxMade a cartridge for the #FujiNet #PicoROM prototype. All data is transferred over the bus, it doesn't plug into the serial port in the back of the CoCo. As a prototype it's still missing things and has to be plugged into a computer which is what the USB-C connector is sticking out of the top. #RaspberryPiPico #RetroComputing #VintageComputing #TRS80CoCo
I was overflowing the FIFO! Doubling the clock speed of the Pico to 250MHz got it working. Well, after adding another wait to the PIO routine. #TRS80CoCo #FujiNet #RaspberryPi #RetroComputing #VintageComputing
Setup a couple of GPIOs for debugging. When my routine is called it flips D2 on at entry and off at exit. D3 is toggled each time the write routine is called (POKE &HFF42,val). I can see that the routine was called 32 times and wrote 32 bytes (16 rising + 16 falling). Yet only 21 of 32 bytes were transmitted. #TRS80CoCo #FujiNet #RaspberryPi #RetroComputing #VintageComputing
The timing on the #TRS80CoCo leaves me a very narrow window to return data. I'm not quite sure how we managed to make the MSX #FujiNet prototype work, and yet it does. I'm going to have to see if I can optimize my code even more on the #RaspberryPi Pico to be able to return the data sooner.
Craig KD6NFDFinally got this TRS-80 online with #fujinet. What a wonderful community of brilliant minded developers and engineers. I used NETCAT to Telnet to a DX cluster just because it can. Watching spots scroll realtime on this 43 yr old computer is a bit surreal. #hamradio #trs80coco #retrocomputing
Prototype of #TRS80 CoCo #FujiNet which uses the cartridge bus –and not the CoCo RS232 serial port– booting up the FujiNet CONFIG program. Shows the splash and goes into the menu! The prototype board uses a PicoROM wired direct to the bus, all IO is sent out over the USB port. This is the same technique currently being used by the MSX FujiNet prototype too.
There is now an integration test suite for #FujiNet which runs on:
* #ColecoAdam
* #AppleII
* #Atari8Bit
* #TRS80CoCo
* #MSDOS
Still need to do #C64, but I'm going to need a lot of encouragement to tackle that.
