Search found 27 matches

by gob33
Tue Nov 05, 2019 1:10 am
Forum: acorn atom and system
Topic: Yarrb - redesigned
Replies: 54
Views: 1607

Re: Yarrb - redesigned

See PCBWay in Shenzen.
by gob33
Sat Oct 05, 2019 4:12 pm
Forum: community projects
Topic: BBC Micro User Guide (Remastered)
Replies: 14
Views: 1822

Re: BBC Micro User Guide (Remastered)

Some critics:
- The font size is generally too big and produces line breaks in many listings
- The alternate margin for binding has disappeared, which was convenient for those wishing to have a paper version of the manuals.
by gob33
Sun Mar 24, 2019 2:28 pm
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

Hem. I would like to point out that there is another (clever) way by using one Parallax Propeller chip with a 6502. This simplify greatly the PCB. Then you program the Propeller in Spin language to manage your I/O Do a search on Google to see many projects with 6502/65C816 + Propeller. Examples: L-S...
by gob33
Sun Oct 14, 2018 11:59 am
Forum: acorn atom and system
Topic: Atom Software Archive
Replies: 1214
Views: 147264

Re: Atom Software Archive

Dont know if it is usefull, I found some archives in Russia : GameBase Acorn Atom by Vicmans.rar - 109 Мo GameBase Acorn Archimedes v4.rar - 307 Мo GameBase Acorn (AcornMania v2.1).rar - 506 Мo ----------------------------------------------------------------- GameBase Acorn Atom Created by Vicman 20...
by gob33
Sat Oct 13, 2018 10:52 pm
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

Seems there is a MIST - MISTICA core for Atom /Electron here (VGA only).
by gob33
Wed Aug 29, 2018 10:32 am
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

EMSproto is a french company that can produce a pcb with mountong components.
Just provide the pcb (gerber), an .xls file of all your components and you get an online quotation. Pay with Paypal. Prices by quantity.
by gob33
Tue Aug 28, 2018 1:02 am
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

Interesting, I never saw these posts before.
by gob33
Mon Aug 27, 2018 2:12 pm
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

Burning or welding a PCB are out of my material possibilities like most users. Commercial FPGA cards do not interest me. I should want a custom board that can run Atom and Bbc with more advanced possibilities (sound, graphics, text mode). FPGA + 6502/6512 + ???? could be a solution. The Atom keyboar...
by gob33
Sun Aug 26, 2018 10:22 pm
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

Yeah, but i will never cut my Atom board to install anything, this is sacrilege.
Your project is restricted to few people having parts or beyond repair.
You should reconsider it for a wider audience and new people come to Atom / Bbc
by gob33
Sun Aug 26, 2018 1:54 pm
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

I dont know if some ideas could be taken from the V6Z80P+ retro-computer by Phil Ruston of retroleum.co.uk Project ended in 2014 but globaly could have same architecture by replacing the Z80 by a 6502. Uses a PIC for I/O. Also, I dont see why you want to place the board inside an Atom case cutting t...
by gob33
Sat Jun 09, 2018 10:19 pm
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

In fact, you can do the same with a MISTICA FPGA, a PC keyboard and an Atom core taken/adapted from the Mist.
by gob33
Sat Jun 09, 2018 3:07 pm
Forum: acorn atom and system
Topic: Atom 2k18 ?
Replies: 265
Views: 12704

Re: Atom 2k18 ?

Have a look at the Ultimate 64 replacement board for the C64 by Gideon Zweijtzer. The 6510 is emulated in an Altera FPGA and keep many ports (HDMI, joysticks, cassette). Ultimate64.jpg But on the other side, there is also a replacement board C64 Reloaded MK2 with modern equivalent components which a...
by gob33
Sat Feb 10, 2018 10:58 am
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

Seems the production of the original Mist is stopped due to the cheaper clones.
They finish their stock.
Read: The last Mist
by gob33
Thu Feb 08, 2018 11:27 pm
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

MISTICA FPGA16 is the name of a new 100% compatible Mist board (although without MIDI or JTAG connector) designed by ManuFerHi (Spain). No Atom core here yet but a BBC core exists. mistica-fpga16-frontal-caja.jpg The biggest advantages over the original Mist are the new audio and video connectors a...
by gob33
Wed Dec 27, 2017 12:16 am
Forum: acorn atom and system
Topic: Porting Atom under Risc OS
Replies: 6
Views: 999

Re: Porting Atom under Risc OS

No because there is a smoked acrylic plate on the front that allows the transmission of WIFI and Bluetooth waves and the reading of the two control LEDs. RA3.png And on the FLIRC with full alu case, the wifi attenuation is something small if i remember. I am wondering if an Atom Emulator / Simulator...
by gob33
Tue Dec 26, 2017 1:52 pm
Forum: acorn atom and system
Topic: Porting Atom under Risc OS
Replies: 6
Views: 999

Re: Porting Atom under Risc OS

I recommend using an Aluminium Case for cooling the Pi 3 like this one (25 EUR) which gives full access to the GPIO port for mounting hats, not like the FLIRC case, the Mechatronics case has a pins extension in option:
RA1.jpg
RA2.jpg
by gob33
Sun Dec 10, 2017 2:07 pm
Forum: acorn atom and system
Topic: Porting Atom under Risc OS
Replies: 6
Views: 999

Re: Porting Atom under Risc OS

I was thinking of something more integrated inside RiscOS like having access to the host file system; but an Atom emulator (Atomulateur) should be possible at first step by recompiling with GCC and UnixLib.
Also BeedIt, a Risc OS BBC emulator, could be usefull as a starting point.
by gob33
Sat Dec 09, 2017 1:44 pm
Forum: acorn atom and system
Topic: Porting Atom under Risc OS
Replies: 6
Views: 999

Porting Atom under Risc OS

I got an idea. It seems to me when reading the forum that it becomes difficult to make evolving the Atom because of the limitations of the 6502,.. and old electronic components disponibility. In addition, everyone does not have the skills in soldering iron, schematics and oscilloscope. I propose to ...
by gob33
Wed Jun 28, 2017 12:21 am
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

A new interesting projet: MiSTer by developper sorgelig. Basicely, it's MiST ported to Terasic DE10-nano board with a 4x larger FPGA (110K LE) and faster ARM (800MHz). Board is mass produced by a big manufacture and freely available for a relatively cheap price. The MisTer Project with the correct C...
by gob33
Wed Jun 07, 2017 10:52 pm
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

http://www.8bits4ever.net has released their own clone of the Mist. It is less expensive (160€ versus 220€) but also has less ports (2 USB, 1 DB9). The case is 3D printed. As for the Mist, it runs a BBC core but not an Atom (to be written by someone). Note the new Mist has now MIDI integrated. StMi...
by gob33
Sat Apr 22, 2017 9:31 am
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

2 new non-official updates of the ZX-Uno 4.1 running Atom and BBC software. 1) v4.2 by Antonio Villena antonio1.jpg Memory upgraded to 2Mb.The raspberry case is from Cyntech . Shop - Forum thread 2) VGA + 2Mb by Manuel Fernández Extension port removed + 2 joysticks. manu2.jpg manu5.jpg manu3.jpg man...
by gob33
Fri Mar 24, 2017 4:53 pm
Forum: acorn atom and system
Topic: Port of the Acorn Atom to the MiST FPGA board
Replies: 7
Views: 1468

Re: Port of the Acorn Atom to the MiST FPGA board

Note that Lotharek has just released the 1.3+ version
by gob33
Fri Nov 04, 2016 1:33 pm
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

For those who didnt take the crowdfunding campaign of the ZX-Uno team, there is now a new clone of the ZX-Uno 4.1, 100% compatible. ZX-Uno's licence is free and permits anyone to commercialy copy/adapt the product. Their plate is larger and has the DB15 VGA connector instead. Price: 100 € zxuno-copy...
by gob33
Sat Aug 20, 2016 11:12 pm
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

ZX-Uno should be available in September 2016, mounted, welded, tested and with the latest cores and firmware at a price of ~72 EUR Paypal. Most are already reserved by the crowfunding campaign. The transparent enclosure is at ~12 EUR, the official black/white one is sold out after the crowd order. A...
by gob33
Mon Jul 18, 2016 9:30 am
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

You should have a look at the ZX Uno , a FPGA spanish clone of the ZX Spectrum. Project is free, schematics and PCB available to copy, adapt, transform. This clone as many differents cores, specially BBC and Atom(VGA) ones. They started from the Hoglet Atom core , remapped for their pins, new timing...
by gob33
Wed Jun 08, 2016 11:11 am
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Re: Atom on FPGA based retro-computers

Yes i have looked (not in deep details) at fpga projects. Your work could be a starting point for adapting to another card more dedicated to retro-systems. Mist board is more frequently used in retro-gamimg than a papillo board and you can use other different platforms/cores in same investment if no...
by gob33
Wed Jun 08, 2016 9:36 am
Forum: acorn atom and system
Topic: Atom on FPGA based retro-computers
Replies: 15
Views: 4145

Atom on FPGA based retro-computers

Im lauching a new idea: Who would be capable to install Atom on Mist FPGA ? The MiST FPGA card by Till Harbaum and Lotharek emulates many retro-systems but not the Atom. It cost is ~215€ with a case. It has already many cores defined (Atari,Amiga, Apple II,ZX Spectrum,...) and even for the BBC. See ...