Search found 876 matches

by IanS
Tue May 21, 2019 10:01 pm
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 18
Views: 316

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

EDIT: Couple of hardware notes -- Photos of the hardware -- http://www.computinghistory.org.uk/det/47496/Castle-A30x0-IDE-Interface/ and http://chrisacorns.computinghistory.org.uk/32bit_UpgradesA2G/Castle_A30x0IDE.html From left to right in the Chris's Acorns photo, the parts are: 74HC245, 74HC573,...
by IanS
Sun May 19, 2019 8:54 pm
Forum: software
Topic: Setting up ROS3.11 with Uniboot
Replies: 9
Views: 180

Re: Setting up ROS3.11 with Uniboot

You could also try uniboot31.zip from http://www.riscos.com/ftp_space/310/index.htm , it claims to be optimised for RISC OS 3.1x (I haven't tried it)
by IanS
Sun May 19, 2019 7:08 pm
Forum: software
Topic: Setting up ROS3.11 with Uniboot
Replies: 9
Views: 180

Re: Setting up ROS3.11 with Uniboot

I guess I need some help setting up my A3000 with OS 3.11. I downloaded Uniboot2 and transfered it onto my hd. Now I have a !Boot folder, but I don't know how to make the OS find the folder. The filesystem name is ZIDEFS::IDEDisc4.$ so that !Boot is loacted at ZIDEFS::IDEDisc4.$.!Boot Do I need to ...
by IanS
Sun May 19, 2019 6:45 pm
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 18
Views: 316

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

Winding this back on topic -- it would appear that John/Castle may have cloned the A5000 hardware as a Podule (with a PAL to do address decode) and just written a shim to tell ADFS "the hardware's here". I don't believe that is possible. A5000 hardware is 16-bit. Only 8-bit transfers are possible o...
by IanS
Sun May 19, 2019 2:34 pm
Forum: software
Topic: Setting up ROS3.11 with Uniboot
Replies: 9
Views: 180

Re: Setting up ROS3.11 with Uniboot

This should do it.
*configure filesystem zidefs
*configure boot
*zidefs
*drive 4
*opt 4,2 (or 4,3 , I always forget)
by IanS
Sat May 18, 2019 10:02 am
Forum: hardware
Topic: MIDI->STM32->Beeb->Music 5000
Replies: 9
Views: 226

Re: MIDI->STM32->Beeb->Music 5000

Looks good.

Is this like the one here - viewtopic.php?f=3&t=16893
But keeping track of each key pressed in software, rather than having a hardware latch for every key? (and Open-source)
by IanS
Fri May 17, 2019 7:24 am
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 18
Views: 316

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

Doesn't the Castle minipodule just mimic the Acorn's motherboard IDE interface and that's why it can use ADFS rather than needing IDEFS etc. ? I don't think it mimics the hardware. I think it uses https://www.riscosopen.org/wiki/documentation/show/ADFS_SetIDEController which I think was introduced ...
by IanS
Thu May 16, 2019 10:44 pm
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 18
Views: 316

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

The castle hardware has a shim - it doesn't have an IDEFS, it just runs with ADFS. I ran wizzo quite happily on my A3010 with the castle card and it just worked! However, I do have to say, now you're all making me doubt my memory! :) I understand that, but I don't understand how wizzo replacing the...
by IanS
Thu May 16, 2019 9:50 pm
Forum: hardware
Topic: CompactFlash card on Castle A30x0 IDE Mini Podule
Replies: 18
Views: 316

Re: CompactFlash card on Castle A30x0 IDE Mini Podule

danielj wrote:
Thu May 16, 2019 9:22 am
Wizzo will natively deal with the castle hardware, no butchery required.
Really, how does that work?

I always assumed Wizzo bypassed the ADFS code and talked to the hardware directly. Why woud it know about the Castle hardware?
by IanS
Tue May 14, 2019 10:54 pm
Forum: hardware
Topic: a5000 not working where to probe
Replies: 2
Views: 176

Re: a5000 not working where to probe

where is IOEB chip ? https://stardot.org.uk/forums/viewtopic.php?f=16&t=15143&p=204083#p204083 The extra socketed chips on earlier A5000s are described in this document on overclocking the A5000 - http://qubeserver.com/Qube/projects/A5000overclocking.html - as a set of PALs providing synchronisatio...
by IanS
Tue May 14, 2019 10:21 pm
Forum: software
Topic: Omnibus w/RISC 3.7 - need to network connect
Replies: 16
Views: 325

Re: Omnibus w/RISC 3.7 - need to network connect

One more thing: When I tried to use the editor again, I got the following: ConfigEditor.png Does anyone know a way to make this thing work by any chance? I know it's a long shot but there are a lot of very smart people on here. That doesn't look like any config editor I've ever seen on a RISC OS ma...
by IanS
Tue May 14, 2019 4:33 pm
Forum: hardware
Topic: A3000 Hd Upgrade
Replies: 5
Views: 243

Re: A3000 Hd Upgrade

Peering into the gloom of those pictures, I think I can make out an A3000, but I'm not sure. The memory card looks like it might be a SIMTEC upgradeable card, so if you can find the right chips, you can upgrade it from 1MB to 3MB for a total of 4MB. (unfortunately there is no information on the IMTE...
by IanS
Sat May 11, 2019 7:28 pm
Forum: hardware
Topic: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?
Replies: 116
Views: 4450

Re: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?

Joka80 wrote:
Sat May 11, 2019 7:23 pm
IanS, was RISC OS 3.20 available for the A3000? Thought it’s max operating system was 3.11 or the German 3.19 equivalent?
3.20 is not an official acorn release. See here - viewtopic.php?t=14110#p186819
by IanS
Sat May 11, 2019 1:16 pm
Forum: hardware
Topic: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?
Replies: 116
Views: 4450

Re: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?

stevebubs wrote:
Sat May 11, 2019 12:52 pm
A3010.. A shade under 0.4"
Measuring the pins on the other side is probably more accurate, but based on the vectorlight IDE board, they look to be exactly 0.4"
https://www.vectorlight.net/retro/compu ... dification
by IanS
Wed May 08, 2019 3:58 pm
Forum: hardware
Topic: Archimedes A410/1 keyboard - strange defect
Replies: 13
Views: 390

Re: Archimedes A410/1 keyboard - strange defect

DavidLowe wrote:
Wed May 08, 2019 3:27 pm
Now, as soon as I make any mouse movement, the keyboard stops responding!
Does the mouse keep moving?

Do you have to do a delete-power-on, if you just wait a while before powering back on does it recover?
by IanS
Sat May 04, 2019 12:13 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG Cambridge 28th - 30th June 2019 BOOKING THREAD
Replies: 74
Views: 2431

Re: ABUG Cambridge 28th - 30th June 2019 BOOKING THREAD

Full table, all three days please.

I'll bring the V1 of the ArcFlash board to demo - viewtopic.php?f=16&t=16043
by IanS
Fri May 03, 2019 11:52 am
Forum: for sale / freebies
Topic: FS: 8-bit IDE podules - SOLD OUT
Replies: 8
Views: 517

Re: FS: 8-bit IDE podules - SOLD OUT

Just in case anyone else is wondering, this is the orientation for the A3000 - I had to bend the 0V connector on my mobo to make it all fit This is correct, but I hoped that would be clear from the instruction sheet included with the board. The instruction sheet included states that the components ...
by IanS
Thu May 02, 2019 3:51 pm
Forum: hardware
Topic: hi purchased an a3000 ide drive and need help
Replies: 17
Views: 487

Re: hi purchased an a3000 ide drive and need help

Can you use an adf format file?
by IanS
Wed May 01, 2019 6:52 pm
Forum: hardware
Topic: hi purchased an a3000 ide drive and need help
Replies: 17
Views: 487

Re: hi purchased an a3000 ide drive and need help

JonC wrote:
Wed May 01, 2019 4:46 pm
Edit 2: Just looking at your photos, where is the CF adapter getting it's power from?
The IDE cable, there should be no need for a separate power cable with a 44-pin cable connection.
by IanS
Wed May 01, 2019 6:23 pm
Forum: for sale / freebies
Topic: FS: 8-bit IDE podules - SOLD OUT
Replies: 8
Views: 517

Re: FS: 8-bit IDE podules

These are no longer for sale.
by IanS
Wed May 01, 2019 6:20 pm
Forum: for sale / freebies
Topic: FS: 16-bit IDE podules - SOLD OUT.
Replies: 13
Views: 597

Re: FS: 16-bit IDE podules

These are no longer for sale.
by IanS
Tue Apr 30, 2019 10:01 pm
Forum: hardware
Topic: IDE interfaces - hardware details
Replies: 107
Views: 5140

Re: IDE interfaces - hardware details

You could have put it at 0x18000 in the existing rom image, to be able to select between the 4 versions of software (3 ZIDEFS variants + the ICS image) using the jumper links on the card.

viewtopic.php?f=16&t=15205#p205465
by IanS
Tue Apr 30, 2019 8:31 pm
Forum: hardware
Topic: Best long-term storage for Acorn 32-bit machines (battery, CMOS, RTC)
Replies: 11
Views: 366

Re: Best long-term storage for Acorn 32-bit machines (battery, CMOS, RTC)

I've certainly come across a stalled clock on my A310 and used a BASIC program to get it running again and it's been fine for 6 or 7 years now since it was restarted. Can you point people at a location for this program or copy it here? It may prove useful. http://www.riscos.org/csafaq/part3.html#3_4
by IanS
Mon Apr 29, 2019 9:43 pm
Forum: hardware
Topic: A310 restoration
Replies: 71
Views: 1281

Re: A310 restoration

For the A310, you need to be looking at IC59 on the motherboard which is a 74ALS138. I'd also investigate IC77 which is used for bank switching and feeds into the ALS138. Your problem here is that they're under your RAM board but I suspect if your A300 RAM expansion is like mine, one of those two c...
by IanS
Mon Apr 29, 2019 7:16 pm
Forum: hardware
Topic: IDE interfaces - hardware details
Replies: 107
Views: 5140

Re: IDE interfaces - hardware details

I have a copy of V1.13 ICS firmware that came with my my ICS board that I used with RiscOS 2.0, I can upload a copy of this if it helps? I also have a disk with the associated ICS disk utilities, I could upload a copy of this too? I found ICS firmware V2.02 didn't work to well with some CF cards (c...
by IanS
Sun Apr 28, 2019 7:34 pm
Forum: hardware
Topic: IDE interfaces - hardware details
Replies: 107
Views: 5140

Re: IDE interfaces - hardware details

During the wakefield show you sold me one of your nice IDE boards. I read on John Kortink website that only RO 3.1 and higher is supported. Would there be an eprom image which supports RO 2.0 ?. For the 16-bit card (which is a clone of the ICS board), yes - https://stardot.org.uk/forums/viewtopic.p...
by IanS
Sun Apr 28, 2019 1:43 pm
Forum: hardware
Topic: Debugging a Simtec IDE card (Is the PLCC dead?)
Replies: 3
Views: 102

Re: Debugging a Simtec IDE card (Is the PLCC dead?)

Is it one of these? http://chrisacorns.computinghistory.org.uk/32bit_UpgradesH2Z/Simtec_IDE.html I think I have a similar setup, I have two, one works, the other doesn't. I wonder what the long term stability and reliability of the printed resistors is? (Look carefully at the data bus connections fr...
by IanS
Sun Apr 28, 2019 11:09 am
Forum: hardware
Topic: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?
Replies: 116
Views: 4450

Re: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?

Very cool! Is this the "difficult" A3000 that was causing all sorts of trouble with the early versions of Chris Morley's 4MB RAM cards? If it passes muster in that one, I think it's probably safe to say it works :) I think my A3000 has unfairly got a bad reputation. It may be marginally worse than ...
by IanS
Sat Apr 27, 2019 10:36 pm
Forum: hardware
Topic: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?
Replies: 116
Views: 4450

Re: "Arcflash" A3000/A3xx/A4xx/A5xx/A5000 in-system programmable ROM -- any interest?

myelin wrote:
Sat Apr 27, 2019 10:10 pm
Success! It works on my RPC600
Excellent news.

I can confirm that the board you sent me also works fine on my A3000.
IMG_20190427_200235_HDR.jpg
Bootloader Menu
IMG_20190427_201337_HDR.jpg
RISC 3.20