Search found 1910 matches
- Sun May 20, 2018 11:20 pm
- Forum: Development
- Topic: ZXblast - ZX81 memory extension plus USB
- Replies: 215
- Views: 90557
Re: ZXblast - ZX81 memory extension plus USB
I have however had trouble that the area shifts from RAM to ROM automatically. Sometimes I have to set it for RAM, and try again. If it fails the set to RAM again and try again. Sometimes even if the configuration screen lists this area as RAM, I change it to ROM and back to RAM, to be sure it is se...
- Sun May 20, 2018 10:54 pm
- Forum: Development
- Topic: ZXblast - ZX81 memory extension plus USB
- Replies: 215
- Views: 90557
Re: ZXblast - ZX81 memory extension plus USB
I have had problems with the 8-16k area as well. I seem to remember PokeMon has mentioned this in the German forum (maybe in a private post). It has been many months since the last firmware due to PokeMon having his hands full in his job. I have not have any luck loading data to RAM in this area, du...
- Sun May 20, 2018 1:00 pm
- Forum: SALES
- Topic: Unbuilt ZX81 up for adoption
- Replies: 11
- Views: 6820
Re: Unbuilt ZX81 up for adoption
Damn it! :lol: I missed this one :( Andy: could you do me favour and scan in hi-res both sides of the unsoldered PCB, please? I would like that as well for debugging purposes on my broken ZX81. Hm.. maybe I could use these pictures. (But we can never get enough.) :) http://k1.spdns.de/Vintage/Sincl...
- Sun May 20, 2018 12:57 pm
- Forum: SALES
- Topic: Unbuilt ZX81 up for adoption
- Replies: 11
- Views: 6820
- Fri May 18, 2018 9:41 am
- Forum: Hardware
- Topic: ZX80 ZX81 Video options.
- Replies: 5
- Views: 4121
Re: ZX80 ZX81 Video options.
The Chroma Interface is your friend, if you will not open up your Sinclair. It's an external interface with a scart-connnection for your tv. The ZX81 version: http://www.fruitcake.plus.com/Sinclair/ZX81/Chroma/ChromaInterface.htm The ZX80 version comes later this year: http://www.fruitcake.plus.com/...
- Fri May 18, 2018 12:02 am
- Forum: Development
- Topic: ZX81 ULA-in-a-CPLD
- Replies: 238
- Views: 125578
Re: ZX81 ULA-in-a-CPLD
Can you select between white and black background?
- Tue May 15, 2018 2:03 pm
- Forum: Hardware
- Topic: ZXPAND and Lambda 8300?
- Replies: 28
- Views: 53449
Re: ZXPAND and Lambda 8300?
Conclusion: It works for LOAD, but not for SAVE.
- Mon May 14, 2018 7:10 am
- Forum: Hardware
- Topic: 28C64 in 2364 socket (28 pin to 26 pin)
- Replies: 10
- Views: 5462
Re: 28C64 in 2364 socket (28 pin to 26 pin)
My board was for my Lambda 8300. And I solved it like Paul suggested with EEPROM on the bottom side. https://trello-attachments.s3.amazonaws.com/598af660300e0d55b35f5755/5a36e7929ce3cfa9702728e9/0caebc827f0042bdfed83a00f8032620/photo.jpg https://trello-attachments.s3.amazonaws.com/598af660300e0d55b3...
- Fri May 04, 2018 7:48 pm
- Forum: Hardware
- Topic: Tape read/write on expansion port?
- Replies: 28
- Views: 11721
Re: Tape read/write on expansion port?
That would be 7400-chips. It's a proof og concept to connect to other hardware. Let's see what time will bring.
- Fri May 04, 2018 5:52 pm
- Forum: Hardware
- Topic: Tape read/write on expansion port?
- Replies: 28
- Views: 11721
Re: Tape read/write on expansion port?
Back on topic. Would this schematic have cassette output?