Steve's DFB1 build
Re: Steve's DFB1 build
Thank you @Badwolf for answering all my n00b questions! I am all set now
Re: Steve's DFB1 build
Actually, it's just occurred to me I don't actually know the situation when using a Raspberry Pi.
Gadget164's done a good video on programming with a Raspberry Pi, I'd suggest he'd know better than me.
Just in case, I'd recommend powering the DFB1 board with 5V before connecting the Raspi. ie. Make sure both are powered before joining them.
And, if I were being super paranoid, I'd have a separate GND line between them before making the connection.
Your mileage may vary, this is not a trick I have used personally.
BW
Gadget164's done a good video on programming with a Raspberry Pi, I'd suggest he'd know better than me.
Just in case, I'd recommend powering the DFB1 board with 5V before connecting the Raspi. ie. Make sure both are powered before joining them.
And, if I were being super paranoid, I'd have a separate GND line between them before making the connection.
Your mileage may vary, this is not a trick I have used personally.
BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
Re: Steve's DFB1 build
By the way, let me know if you have any issues with the 'release' firmware (220329) failing after extended heavy use (>30mins with the case closed). If you do, there's an experimental firmware (220407) which I don't yet consider 'release' level, but for me has been stable over time.
The pre-release version is available in the source:- https://github.com/dh219/DFB/tree/main/DFB1/JEDEC
BW
The pre-release version is available in the source:- https://github.com/dh219/DFB/tree/main/DFB1/JEDEC
BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
- stephen_usher
- Posts: 5666
- Joined: Mon Nov 13, 2017 7:19 pm
- Location: Oxford, UK.
- Contact:
Re: Steve's DFB1 build
When programming a CPLD using a Raspberry Pi DON'T connect the 3.3V line as it can fry the chip if the RPi powers up before the power to the chip.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
Re: Steve's DFB1 build
This makes good sense! Yes of course, as 3v3 is provided by the voltage converter on the DFB1 anyways. I'll do this thx.stephen_usher wrote: ↑Fri Apr 15, 2022 1:31 pm When programming a CPLD using a Raspberry Pi DON'T connect the 3.3V line as it can fry the chip if the RPi powers up before the power to the chip.
Re: Steve's DFB1 build
All seems good @Badwolf next will be to try in a my Falcon - but I might be a bad student and put TT ram on first. Will see how I feel.
xc3sprog recognises the CPLD!
All lights are on!
xc3sprog programs the CPLD!
Lights go blue!
xc3sprog recognises the CPLD!
All lights are on!
xc3sprog programs the CPLD!
Lights go blue!
Re: Steve's DFB1 build
Boot her up!
BW
BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
Re: Steve's DFB1 build
@Steve
Ominous silence, Steve. I for one am waiting with bated breath!
BW
Ominous silence, Steve. I for one am waiting with bated breath!
BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
Re: Steve's DFB1 build
I got the RAM on order so I was waiting for that
- HigashiJun
- Posts: 1212
- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: Steve's DFB1 build
Looks really good !