exxos's Atari, Amiga & retro forum

chronicthehedgehog wrote: 31 Aug 2023 13:12

rubber_jonnie wrote: 31 Aug 2023 13:00 I've never seen so many wires hanging off a Speccy :)

The biggest breadboard project I did was a latch card to sound chip on my ZX81. It was limited, but actually worked ok. All lost to the mists of time sadly...

:lol: and it almost worked.

I'd attached a raspi to the S7. Hand-coded a UART, circular FIFOs, CDC stuff etc in system verilog (because I didn't really understand AXI mainly). My first project was to allow various USB HIDs to be attached to the Spectrum via the PI but I couldn't figure out why I was getting two reads on my FIFO for every IORQ from the Spectrum.

I guess it was down to timing/constraints on the FPGA but that was way above my level of expertise and I never could find any info on it (beyond the 'hello world' type stuff). Shelved indefinitely but I can't bring myself to tear apart the breadboard - just in case I get the urge to do some Verilog ;)

It really attracts the dust :D

stephen_usher wrote: 11 Sep 2023 13:37 I got a "shipped" e-mail over night.

stephen_usher wrote: 11 Sep 2023 13:37 I got a "shipped" e-mail over night.

rubber_jonnie wrote: 11 Sep 2023 22:03

stephen_usher wrote: 11 Sep 2023 13:37 I got a "shipped" e-mail over night.

I just got a shipped email 😁

chronicthehedgehog wrote: 11 Sep 2023 23:06 Have either of you played Cosmic Payback on the Spectrum?

Really great homebrew from a couple of years ago if you want something new to play. Really fluid mechanics imo. I got really hooked but couldn't complete the last level.