Search found 506 matches: "master ram board"

Searched query: master ram board

by hoglet
Fri Jul 20, 2018 1:28 pm
Forum: software
Topic: MonitorType and RISC OS 3
Replies: 11
Views: 100

Re: MonitorType and RISC OS 3

... in MIST is implementing the RTC/CMOS chip as a RAM block: https://github.com/mist-devel/mist-board/blob/master/cores/archie/rtl/i2cslave/registerInterface.v This is initialized ...
by tricky
Sun Jul 08, 2018 11:10 am
Forum: acorn atom
Topic: new to atom: ram rom mmc joystick power
Replies: 23
Views: 373

new to atom: ram rom mmc joystick power

... another new atom guardian. I sort of ordered a ram/ROM board at abug south, I think from prime, but as I can't ... making up a dual Sega adapter like I made for the beeb/master. With 0v, 5v and 6 IO pins you could support a two ...
by rharper
Wed Jun 13, 2018 4:05 pm
Forum: hardware
Topic: Electron Plus3 + ROM/RAM board problem
Replies: 13
Views: 440

Electron Plus3 + ROM/RAM board problem

I have a problem with a Plus3 and Prime's ROM/RAM board. It was working. Then it stopped accessing ADFS discs ... stripes, Mode 6 style BUT this was on an Elk with a Master RAM board and it was OK in Turbo or Shadow modes ...
by rmbrowngr
Sun May 27, 2018 3:04 pm
Forum: hardware
Topic: Master Ram Board or Second Processors.
Replies: 4
Views: 416

Re: Master Ram Board or Second Processors.

Just read this in the forum about replacing the ULA. viewtopic.php?f=3&t=9223&start=150

It really is fantastic. I do remember back in the 80’s still being a bit jealous of Beeb owners, but this would make up the difference and more. A much better upgrade than the MRB.
by Michael Brown
Sun May 27, 2018 7:25 am
Forum: archive issues
Topic: Dunjunz RAM version
Replies: 0
Views: 253

Dunjunz RAM version

... all, I have taken another look at the Sideways RAM loader for Dunjunz on my Disc060. I have compared ... now it does. I have also added a check for the Master 128 and to state "Dunjunz does not work on ... a BBC with no datacentre, but a sideways RAM board with 2 spare banks (4 and 5) and see ...
by RobC
Tue May 22, 2018 5:44 pm
Forum: hardware
Topic: Master Ram Board or Second Processors.
Replies: 4
Views: 416

Re: Master Ram Board or Second Processors.

One thing that puts me off the MRB is the need to unsolder the CPU. I can do some soldering but I’m not the best and I don’t won’t to muck it up. Might be worth seeing if there's a hacker/maker group near to you. If so, it's likely that someone there will have the necessary skills to desolder the C...
by jms2
Tue May 22, 2018 4:36 pm
Forum: hardware
Topic: Master Ram Board or Second Processors.
Replies: 4
Views: 416

Re: Master Ram Board or Second Processors.

... have a Plus 1 and don't mind bits of circuit board sticking out of your machine I would definitely ... interface, level shifter board and a Pi over a Master RAM board. Hope this helps! :D
by daveejhitchins
Tue May 22, 2018 12:33 pm
Forum: hardware
Topic: Master Ram Board or Second Processors.
Replies: 4
Views: 416

Re: Master Ram Board or Second Processors.

I think the MRB support for games is variable in that if a game is written correctly, using all the official OS calls, then it should work in all three switch positions - and will probably benefit from the extra speed. Some games are just too slow on the Elk and so may benefit from the Turbo positio...
by rmbrowngr
Tue May 22, 2018 12:17 pm
Forum: hardware
Topic: Master Ram Board or Second Processors.
Replies: 4
Views: 416

Master Ram Board or Second Processors.

I’ve been reading for sometime about the Master Ram Board and second processors for the Elk. Both of them offer speed ...
by Elminster
Tue May 08, 2018 8:41 pm
Forum: hardware
Topic: The Master List for New Retro Hardware
Replies: 90
Views: 11530

Re: The Master List for New Retro Hardware

Added:
- IFEL 16 RAM/ROM EEPROM Board for BBC B.
- New 6502 SBC section, containing popular SBC kits, currently:
  • - RC2014 + RC2014 6502 Modules
    - L-Star Plus
    - PE6502
by daveejhitchins
Wed May 02, 2018 7:51 pm
Forum: hardware
Topic: Elk Sideways Rom\Ram, Shadow Ram etc.
Replies: 6
Views: 408

Re: Elk Sideways Rom\Ram, Shadow Ram etc.

... but I think you are right, there was a plugin board available in the past that would add this. ... that could be used in the original AP6, BBC, Master etc. Of course the new AP6 supports EEPROMs, EPROMs and RAM and has it's own utilities in the New Plus 1 support ...
by jms2
Wed May 02, 2018 8:55 am
Forum: hardware
Topic: Elk Sideways Rom\Ram, Shadow Ram etc.
Replies: 6
Views: 408

Re: Elk Sideways Rom\Ram, Shadow Ram etc.

... there is a hardware quirk as follows: - The keyboard is mapped to slots 8 & 9 (they are both identical) ... turning the power off you lose the contents of RAM. There are solutions for this; one is called ... I came across are Jafa’s Shadow RAM Board and Master RAM board (http://www.acornelectron.co.uk/info/electron/slogger/Master_Ram_Board.html). ...
by rmbrowngr
Tue May 01, 2018 2:57 pm
Forum: hardware
Topic: Elk Sideways Rom\Ram, Shadow Ram etc.
Replies: 6
Views: 408

Elk Sideways Rom\Ram, Shadow Ram etc.

... trying to get my head around the sideways Rom\Ram slots, shadow Ram etc. From what I read there ... are occupied by BBC Basic and 8 & 9 by the keyboard. I think I had read somewhere that the higher ... I came across are Jafa’s Shadow RAM Board and Master RAM board (http://www.acornelectron.co.uk/info/electron/slogger/Master_Ram_Board.html). ...
by trixster
Sat Apr 14, 2018 1:15 pm
Forum: hardware
Topic: Master level shifter for PiTube Direct won't fit with VideoNuLA
Replies: 27
Views: 1416

Re: Master level shifter for PiTube Direct won't fit with VideoNuLA

... Pi0 (via sundby PiTubeDirect), IFEL ROM/RAM board, TurboMMC, WE Shadow RAM card. (a BeebSID is on the way) In my Master I have: Internal DC, ReCo6502Mini, BeebSID, MultiOS, Smallymouse2. ...
by dominicbeesley
Wed Apr 11, 2018 3:11 pm
Forum: hardware
Topic: A blitter for the beeb?
Replies: 59
Views: 4588

Re: A blitter for the beeb?

A quick update. A test board for this was fabricated a few weeks ago and I've ... idea and just have the fpga a cpu socket and ram. This board also has battery backed ram though it ... fits ok in the Model B, I've not tried it yet in a master but it will require an umbilical to fit. The ...
by hoglet
Sat Mar 31, 2018 11:53 am
Forum: software: new games
Topic: New Release: Retro Software's WHITE LIGHT by Sarah Walker
Replies: 69
Views: 5775

Re: New Release: Retro Software's WHITE LIGHT by Sarah Walker

... this a bit further (with the FTDI snoop board hanging off the tube), you can see the problem: ... as well. It also seems like MMFS (in sideways RAM) is getting corrupted by the game itself. This ... of Model B MMFS, but won't be a problem on the Master With the MMFS work around (1), I have got ...
by flaxcottage
Sat Mar 31, 2018 9:53 am
Forum: hardware
Topic: Sideways RAM on the BBC Micro
Replies: 44
Views: 2003

Re: Sideways RAM on the BBC Micro

... years of experience of using various sideways RAM boards, extension ROM boards I have concluded; 1. modern ... lose 32 SWR but gain another 16/32K ROM socket. 5. The Master already comes with 4x16K SWR banks built in, one ...
by Pernod
Fri Mar 23, 2018 1:18 pm
Forum: emulators
Topic: MAME: Electron MRB
Replies: 6
Views: 661

Re: MAME: Electron MRB

... two versions of Stop Press 64, one requires a board (that needs reverse engineering), and the ... states: The circuit board is hard wired to the Master RAM Board and a new operating system (v3.1) is installed. ...
by Pernod
Wed Mar 21, 2018 5:10 pm
Forum: emulators
Topic: MAME: Electron MRB
Replies: 6
Views: 661

MAME: Electron MRB

How does the Master RAM Board work? I know it provides an extra 32K shadow RAM, but is it switchable ...
by myelin
Fri Mar 16, 2018 6:41 pm
Forum: hardware
Topic: Myelin's in-system updateable MegaROM for the BBC Master 128
Replies: 31
Views: 1683

Re: Myelin's in-system updateable MegaROM for the BBC Master 128

... right hand corner, around the 'updatable master megarom' text, so I could throw a buffer ... I guess! I'm tempted to do a four-socket RAM/ROM board that provides independent access over USB to all 256kB... ...
by myelin
Fri Mar 16, 2018 7:33 am
Forum: hardware
Topic: Myelin's in-system updateable MegaROM for the BBC Master 128
Replies: 31
Views: 1683

Re: Myelin's in-system updateable MegaROM for the BBC Master 128

... lines tristated for about 20 seconds. In the Master, you're OK, because the bus from the OS ROM ... present :) The latter is easier, because my board acts as a paged ROM. Holding the CPU in reset ... for example if RnW=1 and A=&0000, the RAM will end up driving the data bus during the ...
by paulb
Sat Mar 03, 2018 8:35 pm
Forum: acorn atom
Topic: Crazy idea? Downgrade Electron to an Atom? Possible?
Replies: 19
Views: 932

Re: Crazy idea? Downgrade Electron to an Atom? Possible?

... Well, not without soldering directly to mainboard tracks, at any rate! Good thing, then, that ... to which experience was more typical. With the Master, "normal people" can load ROM images into sideways RAM, though. I'm sorry, but that is still not even approaching ...
by crj
Sat Mar 03, 2018 6:19 pm
Forum: acorn atom
Topic: Crazy idea? Downgrade Electron to an Atom? Possible?
Replies: 19
Views: 932

Re: Crazy idea? Downgrade Electron to an Atom? Possible?

... Well, not without soldering directly to mainboard tracks, at any rate! Compare and contrast ... opening up computers to plug in ROMs. With the Master, "normal people" can load ROM images into sideways RAM, though. Another issue that I've just remembered is ...
by crj
Sat Mar 03, 2018 3:29 pm
Forum: acorn atom
Topic: Crazy idea? Downgrade Electron to an Atom? Possible?
Replies: 19
Views: 932

Re: Crazy idea? Downgrade Electron to an Atom? Possible?

... should provided via the paged-ROM mechanism. A board which just slapped a ROM onto the expansion ... out their inherent utility eventually for the Master 128 Adding cartridge slots to the Master ... load it into one of the banks of sideways RAM via the disc interface that came as standard. ...
by BBCNoob
Mon Feb 26, 2018 7:09 am
Forum: hardware
Topic: Questions about Roms on a BBC Master...
Replies: 15
Views: 735

Re: Questions about Roms on a BBC Master...

... 16KB socket and does not overlap with sideways RAM. Loading the ROM image into sideways RAM as ... good option though. And you can still use the board even if the ROM or image isn't present. Sorry, ... that allow for the flashing it, within the BBC Master itself. A direct quote from its manual... ...
by jgharston
Sun Feb 25, 2018 11:01 pm
Forum: hardware
Topic: Myelin's in-system updateable MegaROM for the BBC Master 128
Replies: 31
Views: 1683

Re: Myelin's in-system updateable MegaROM for the BBC Master 128

... south east. What do you mean "do the MOS"? Interesting to look at that board - four gate arrays in place of the glue logic of the BBC but where is the RAM? Is it the set of 4 18pin chips at the south end of the board in the middle with what ...
by RobC
Sun Feb 25, 2018 9:32 pm
Forum: hardware
Topic: Questions about Roms on a BBC Master...
Replies: 15
Views: 735

Re: Questions about Roms on a BBC Master...

... to be put in the C37 or IC41. Either way two lots of 16KB sideways ram will be lost, and LK19 has to be to the right. I understand that for ... and when it's needed is a good option though. And you can still use the board even if the ROM or image isn't present.
by dominicbeesley
Sun Feb 25, 2018 1:23 pm
Forum: hardware
Topic: 6809 experiments
Replies: 137
Views: 9612

Re: 6809 experiments

... progress this past few weeks. 1) Sent off a board for fabrication This is a proof of concept ... board as a mezzanine. It also has 1MB SRAM, 512K ROM a battery backup function. This is ... is to have jumpers to select which host (Beeb/Master/Elk etc) and jumpers to select which cpu ...
by crj
Thu Feb 22, 2018 3:06 am
Forum: hardware
Topic: B+64K - 12k sideways ram working
Replies: 15
Views: 786

Re: B+64K - 12k sideways ram working

However, today I much prefer the Master[...] There are plenty of other reasons to prefer the Master: Page at &E00 Exploded ... out with a BBC model B, which I later upgraded with a disc interface, then a ROM board, then the Solidisk double-density disk interface. Everything did work, but it ...
by crj
Thu Feb 22, 2018 2:31 am
Forum: hardware
Topic: Pi Zero Super Interface
Replies: 23
Views: 1494

Re: Pi Zero Super Interface

... machine is that it can take over the host's RAM The other nice thing about a ROM is that a 28-pin ... is the only physical port that every Beeb/Elk/Master has. As a bonus, a great many other classic ... about this before, to use an OHO "GOP" FPGA board in a ROM socket to act as a second processor ...