Search found 102 matches

by Hans61
26 Mar 2024, 16:31
Forum: Hardware and software hacking
Topic: Gigatron Soundcard
Replies: 4
Views: 1295

Re: Gigatron Soundcard

I have no musical talent. I just wanted to see if the Gigatron could control a sound chip. I thought the SN76489 was the simplest option. Since the Gigatron can only write ports, not read them. I hadn't gotten my board to work yet and had almost forgotten about it. I wasn't aware that the SN76489 wa...
by Hans61
21 Mar 2024, 18:03
Forum: Hardware and software hacking
Topic: New size coding contest "ZX Spectrum effect"
Replies: 17
Views: 574

Re: New size coding contest "ZX Spectrum effect"

This is outside of the competition here. I just wanted to point out another idea. I tried using the v6502 CPU. The actual program is 19 bytes without crashing. To activate the v6502 CPU on the Gigatron, another 12 bytes are required for the official route. The entire GT1 file is 40 bytes. Maybe ther...
by Hans61
21 Mar 2024, 11:44
Forum: Hardware and software hacking
Topic: gtmine [game]
Replies: 8
Views: 994

Re: gtmine [game]

The 32 version does without two image lines at the top in order to have enough memory.
the game itself is no different. only slight visual differences.
by Hans61
20 Mar 2024, 17:28
Forum: Hardware and software hacking
Topic: gtmine [game]
Replies: 8
Views: 994

Re: gtmine [game]

gtmine was my first attempt at writing a game in glcc. After it was running, I didn't bother with the code anymore. I just tested it on my Gigatron and it works. But I loaded it via spi of the 128k expansion. lb3361 explained it above. thanks for the tip. The latest version of the game should be fou...
by Hans61
23 Sep 2023, 19:30
Forum: Hardware and software hacking
Topic: ROM adventures (dev7rom)
Replies: 32
Views: 9750

Re: ROM adventures (dev7rom)

Thanks for your work
by Hans61
07 Sep 2023, 20:54
Forum: Kit assembly gallery
Topic: New Gigatron in Russia
Replies: 8
Views: 2656

Re: New Gigatron in Russia

I think it could just be the monitor/tv or quartz?
I have already tested Gigatrons on various monitors and TVs. If they synced badly, then the picture was shifted. I've never had a picture like this before, it's too big on all sides.

Why ROMv4? But it has nothing to do with the monitor.
by Hans61
01 Sep 2023, 19:29
Forum: Hardware and software hacking
Topic: 10MHz, 12.5MHz and Beyond!
Replies: 45
Views: 54592

Re: 10MHz, 12.5MHz and Beyond!

I played something with the Gigasaur today. Since the Gigasaur uses the 74F00 family, I used a 50 MHz oscillator. This means that the Gigatron clone runs at 12.5 MHz. To get an image I used the ROMv3y. Compared to the ROMv3, the Mandelbrot is about 4 times faster. However, it is still significantly ...
by Hans61
26 Aug 2023, 13:51
Forum: Hardware and software hacking
Topic: Gigatron 512k and more
Replies: 36
Views: 15024

Re: Gigatron 512k and more

I wanted to solder. So I built a few extensions.
If you're interested, I'll give you an extension for €40 plus shipping from Germany.
All successfully tested.
4x 512k.jpg
4x 512k.jpg (628.61 KiB) Viewed 1981 times
by Hans61
27 Jul 2023, 11:03
Forum: Hardware and software hacking
Topic: KiCAD v7.0 compliance
Replies: 6
Views: 1059

Re: KiCAD v7.0 compliance

For finishing at JLCPCB I always used the original Gerber files. (https://gigatron.io/?p=2230) I never had any problems with it. Opening the KiCad files in a newer version only makes sense if you want to change the layout of the PCB. But that amounts to a new Gigatron clone. There is already the Gig...
by Hans61
22 Jun 2023, 15:01
Forum: Hardware and software hacking
Topic: Double your RAM:
Replies: 20
Views: 19321

Re: Double your RAM:

I had the same thought at the beginning. But where do you start and where does it end. The Novatron includes the expansion and part of the expansion board from lb3361. It is 128k+ compatible with it. There are several extensions that use sockets from U36 and U37. If you change the board now it will ...