Another very 80s style chip is the AY-3-8910. http://www.microtan.ukpc.net/pageProducts.html (search for 'sound cards') contains two examples of connecting it to the 6502 bus.
Simon
Search found 31 matches
- Thu Jul 22, 2021 8:32 am
- Forum: Programmable Logic
- Topic: VGA6448, text-based VGA in ATF1504AS CPLD
- Replies: 69
- Views: 22332
Re: VGA6448, text-based VGA in ATF1504AS CPLD
Bill,
Very nice - I must finish off assembling the CRC65 board and wait for the gerbers for the VGA board!
Thanks,
Simon
Very nice - I must finish off assembling the CRC65 board and wait for the gerbers for the VGA board!
Thanks,
Simon
- Fri Jan 03, 2020 2:44 pm
- Forum: Newbies
- Topic: Started the design for my 8-bit computer... but need help!
- Replies: 15
- Views: 3429
Re: Just Started The Design For My First 8-Bit Computer!
I too have used JLC PCB with considerable success. I would make a few points:-
Delivery is usually pretty quick although not necessarily so
Consider splitting different boards up into multiple orders. It sounds counter intuitive but the additional postage is worth it to keep individual packages ...
Delivery is usually pretty quick although not necessarily so
Consider splitting different boards up into multiple orders. It sounds counter intuitive but the additional postage is worth it to keep individual packages ...
- Thu Jan 02, 2020 12:54 pm
- Forum: Hardware
- Topic: Complete Beginner Here! How do you even get a 65c02?
- Replies: 6
- Views: 1119
Re: Complete Beginner Here! How do you even get a 65c02?
There are several people selling them on ebay.co.uk and a variety of speeds and types (NMOS or CMOS) are available starting at about £5 including P & P.
Of course, 'buyer beware' etc.
Of course, 'buyer beware' etc.
- Thu Jan 02, 2020 10:06 am
- Forum: General Discussions
- Topic: When, specifically, did you get enamoured by the 6502?
- Replies: 12
- Views: 2156
Re: When, specifically, did you get enamoured by the 6502?
Like most people who hide out here, I first came across the 6502 in the late 70s - the Microtan 65 system to be precise. The Commodore Pet (singular) was the computer at school although it was only ever programmed in Basic. The Microtan 65 was a typical niche machine from that time that had 1k of ...
- Fri Oct 11, 2019 9:56 am
- Forum: Newbies
- Topic: Video Chips on Mouser...
- Replies: 31
- Views: 7557
Re: Video Chips on Mouser...
There's another example here http://geoffg.net/terminal.html that gives 80 x 24 (ish) into VGA and 44 x 15 (NTSC) or 48 x 18 (PAL) to composite. It uses a through-hole ATMEL chip - does that count?
Something that's been in the back of mind is to see if, rather than communicating via the serial is ...
Something that's been in the back of mind is to see if, rather than communicating via the serial is ...
- Tue Jul 09, 2019 8:26 am
- Forum: Emulation and Simulation
- Topic: Javascript 6502 emulator
- Replies: 6
- Views: 1897
Re: Javascript 6502 emulator
It works well under Chrome - speed reported is a bit 'lumpy' varying between about 28MHz and 35MHz. The processor it's running on is a 2.7GHz Core i7-6820HQ on Windows 10.
Thanks for sharing.
Simon
Thanks for sharing.
Simon
- Mon Mar 25, 2019 11:07 am
- Forum: Programmable Logic
- Topic: Atmel 22v10 - Programmer?
- Replies: 6
- Views: 2368
Re: Atmel 22v10 - Programmer?
It might considered bad form but we had this discussion over at the Retrobrew Computer's website. (https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=335&goto=5357&#msg_5357).
The conclusion was that you needed to use the TL866-II with at least version 8.07 of the software. The version II ...
The conclusion was that you needed to use the TL866-II with at least version 8.07 of the software. The version II ...
- Wed Dec 02, 2015 11:48 am
- Forum: Nostalgia
- Topic: Tangerine Microtan 65 'High Resolution Graphics' Diagram
- Replies: 0
- Views: 4121
Tangerine Microtan 65 'High Resolution Graphics' Diagram
Hi,
I have located circuit diagrams for a number of the cards produced by Tangerine for their 6502-based system (aka Microtan 65) except for the 'high resolution graphics' (relatively speaking - it was 256x256!) card.
Can anyone supply me with a copy?
Thanks,
Simon
I have located circuit diagrams for a number of the cards produced by Tangerine for their 6502-based system (aka Microtan 65) except for the 'high resolution graphics' (relatively speaking - it was 256x256!) card.
Can anyone supply me with a copy?
Thanks,
Simon
- Fri Jun 28, 2013 8:30 am
- Forum: General Discussions
- Topic: Part Order
- Replies: 14
- Views: 1824
Re: Part Order
I just wanted to publically thank BitWise for organising this 'group' purchase - now I just need to get around to building the things that the bits I now have are for!
Simon
Simon
- Fri Jun 14, 2013 11:34 am
- Forum: General Discussions
- Topic: Part Order
- Replies: 14
- Views: 1824
Re: Part Order
I'm interested in getting at least some more parts.
How soon do you need to know precise part number, quantity and packaging?
How soon do you need to know precise part number, quantity and packaging?
- Wed Mar 06, 2013 12:03 pm
- Forum: Hardware
- Topic: 6502 Sandbox
- Replies: 75
- Views: 12623
Re: 6502 Sandbox
Okay - feature creep! An idea that's been floating around my head for a while is to make a board very similar to this but with the following changes:-
1) Provide hardware SPI support using something akin to Daryl's 65SPI chip http://sbc.rictor.org/65spi.html . Daryl's design (and I apologise for ...
1) Provide hardware SPI support using something akin to Daryl's 65SPI chip http://sbc.rictor.org/65spi.html . Daryl's design (and I apologise for ...
- Wed Mar 06, 2013 11:52 am
- Forum: Programming
- Topic: WDC ProSDK via 65XX.com
- Replies: 25
- Views: 5000
Re: WDC ProSDK via 65XX.com
$40 for an '816 compiler and simulator (plus the other tools) is not at all bad IMHO.
However, I've downloaded the tools package and installed it on Win7 64 bit and it won't start - BORLNDMM.DLL missing. While waiting for my registration at the 65xx.com to be approved has anyone else had this ...
However, I've downloaded the tools package and installed it on Win7 64 bit and it won't start - BORLNDMM.DLL missing. While waiting for my registration at the 65xx.com to be approved has anyone else had this ...
- Fri Feb 22, 2013 11:51 am
- Forum: Hardware
- Topic: 6502 Sandbox
- Replies: 75
- Views: 12623
Re: 6502 Sandbox
Very interesting - especially with the extended IO options. I like the idea of the 'easily' solderable pins although I'll need to get some new glasses for the FPGA!
Simon
Simon
- Mon Apr 27, 2009 8:39 am
- Forum: General Discussions
- Topic: just for giggles, web link time
- Replies: 1
- Views: 2018
The Oric was a system built by the British company Tangerine as a successor to their Microtan system. The Atmos was a successor to the Oric. For further detail see http://en.wikipedia.org/wiki/Oric_Atmos
While interest in the UK has waned there seems to be a degree of interest in mainland Europe ...
While interest in the UK has waned there seems to be a degree of interest in mainland Europe ...