Search found 1838 matches

by steve3000
Fri Mar 30, 2018 11:55 am
Forum: hardware
Topic: Spoofing Drive number on RiscOS
Replies: 49
Views: 1393

Re: Spoofing Drive number on RiscOS

Glad it works :) One thing to be aware of if using this to swap two real drives (not Gotek) is that in the eyes of ADFS, this patch is equivalent of swapping the physical drives at the connector. So the drive step settings are also swapped. This initially confused my 5.25" external drive, and made m...
by steve3000
Thu Mar 29, 2018 11:59 pm
Forum: software: new games
Topic: Prince of Persia
Replies: 112
Views: 4917

Re: Prince of Persia

Wow! Well done! =D> Looking forward to some free time to play this at the weekend.
by steve3000
Thu Mar 29, 2018 11:46 pm
Forum: hardware
Topic: Spoofing Drive number on RiscOS
Replies: 49
Views: 1393

Re: Spoofing Drive number on RiscOS

My thought was, wouldn't it be better to intercept the final stage of the process when ADFS sends the drive select/motor-on message to the FDC? Working on the assumption that ADFS used only one piece of code to do select a drive (why would you use more?), and providing this routine could be tracked ...
by steve3000
Thu Mar 29, 2018 10:35 pm
Forum: hardware
Topic: Spoofing Drive number on RiscOS
Replies: 49
Views: 1393

Re: Spoofing Drive number on RiscOS

Thought about this for a couple of hours tonight and I now have a 100% robust software solution, tried and tested on my dual drive A5000. Daniel - which drive connectors did you plug your floppy and Gotek into on the A5000 PCB? I'd guess at PL10 for the floppy and PL11 for the Gotek? Or did you use...
by steve3000
Thu Mar 29, 2018 10:21 pm
Forum: hardware
Topic: Spoofing Drive number on RiscOS
Replies: 49
Views: 1393

Re: Spoofing Drive number on RiscOS

Thought about this for a couple of hours tonight and I now have a 100% robust software solution, tried and tested on my dual drive A5000. Daniel - which drive connectors did you plug your floppy and Gotek into on the A5000 PCB? I'd guess at PL10 for the floppy and PL11 for the Gotek? Or did you use ...
by steve3000
Wed Mar 28, 2018 10:34 pm
Forum: hardware
Topic: A5000 woes
Replies: 18
Views: 846

Re: A5000 woes

RobC wrote:Definitely try reflowing as it fixed on fibble's too. I just applied some no-clean flux around it and then touched each pin with the iron.
Thanks Rob, I'll definitely give that a try :)
by steve3000
Wed Mar 28, 2018 12:22 pm
Forum: hardware
Topic: ICS Wizzo IDEFS for A5000/A4 (+A3020/A4000...) improves CF card support!
Replies: 69
Views: 5900

Re: ICS Wizzo IDEFS for A5000/A4 (+A3020/A4000...) improves CF card support!

Found some rom images, will investigate. Oh yes, the wizzo ROMs are further up this thread. There's a choice of either a 32kb ROM or a later 64kb ROM. I've been running the 32kb ROM in my A5000 for over a year with no issues, you just need to mount it in the lower pins of the extension ROM socket a...
by steve3000
Wed Mar 28, 2018 12:16 pm
Forum: hardware
Topic: A5000 woes
Replies: 18
Views: 846

Re: A5000 woes

One other thing I thought about was the hanging issue that affects A4s. This eventually resulted in my A4 being dead until I reflowed the IOC. However, I've tried reflowing all the main chips and that hasn't brought the A5000 back to life :( Out of interest, did your A4 give any POST error messages...
by steve3000
Tue Mar 27, 2018 10:24 pm
Forum: hardware
Topic: master Compact expansion connector?
Replies: 45
Views: 4513

Re: master Compact expansion connector?

jgharston wrote:Coming back to this, is there any chance you can save the Mertec Compact Companion control ROM so I can archive it.
I'm sure I've got one of those in the loft. Won't be going up there for a while, but will put it on my list to bring down if no one else has one to hand.
by steve3000
Tue Mar 27, 2018 10:18 pm
Forum: hardware
Topic: Fault finding index
Replies: 96
Views: 22747

Re: Fault finding index

Bat wrote:The noise from the speaker has certainly decreased since replacing C19 and C20 so it's improved PSU noise filtering.
Great, that's definitely worth knowing about :)
by steve3000
Tue Mar 27, 2018 10:15 pm
Forum: hardware
Topic: mini-podule pin headers
Replies: 20
Views: 963

Re: mini-podule pin headers

Have you got the A3000 TRM?

I'm sure there's a diagram in there showing the internal expansion dimensions, along with the circuit and layout of the internal User port/MIDI podule?

If you don't have this, I can dig this out and post a picture when I'm home on Friday.
by steve3000
Tue Mar 27, 2018 10:03 pm
Forum: hardware
Topic: ICS Wizzo IDEFS for A5000/A4 (+A3020/A4000...) improves CF card support!
Replies: 69
Views: 5900

Re: ICS Wizzo IDEFS for A5000/A4 (+A3020/A4000...) improves CF card support!

4 Partitions on one drive up and running... IDEDisc6,7,8 - still running solid state disk too. Interesting, the IDE disc formatter allowed me to create 6 partitions, likely could have created more. Unsurprisingly the filing system recognises the first four it finds - I presume. I'm sure internally ...
by steve3000
Tue Mar 27, 2018 9:58 pm
Forum: hardware
Topic: Fault finding index
Replies: 96
Views: 22747

Re: Fault finding index

Hi, I've only got 2 BBCs but have noticed a fault on both PSUs which is not covered in the normal replacement parts kit you get on the well known auction site. The kit deals with caps on the high voltage side of the PSU, the ones I'm noticing are the output smoothing caps C19 and C20. They fail in ...
by steve3000
Tue Mar 27, 2018 9:49 pm
Forum: hardware
Topic: A5000 woes
Replies: 18
Views: 846

Re: A5000 woes

Sorry to hear about your A5000. I've had exactly the same too, and posted about it a while back: http://stardot.org.uk/forums/viewtopic.php?f=16&t=9378 Exacty like SteveB has said above, my A5000 would intermittently boot up if you pressed reset repeatedly after switching on, but it got progressivel...
by steve3000
Tue Mar 27, 2018 6:46 am
Forum: hardware
Topic: ICS Wizzo IDEFS for A5000/A4 (+A3020/A4000...) improves CF card support!
Replies: 69
Views: 5900

Re: ICS Wizzo IDEFS for A5000/A4 (+A3020/A4000...) improves CF card support!

Thanks for this post! I now have an IDE/SD card reader working on an A5000 under IDEFS booted from floppy formatted ADFS. The SD card reader would not work under ADFS. Great to hear that! If it works with the floppy boot disc, you can avoid this on the A5000 by finding someone to burn an extension ...
by steve3000
Sun Mar 25, 2018 11:05 pm
Forum: hardware
Topic: Spoofing Drive number on RiscOS
Replies: 49
Views: 1393

Re: Spoofing Drive number on RiscOS

I've just popped a Gotek in my A5000 as Drive 1 - does anyone know if it's possible to "spoof" the drive numbers on a temporary basis? (i.e. make 1=0 and vice versa) - most games are badly behaved and assume they're in drive 0... In software? ...if so, probably not easy for what you want to do unfo...
by steve3000
Sat Mar 24, 2018 4:52 pm
Forum: general
Topic: Today I received.....
Replies: 4658
Views: 312815

Re: Today I received.....

This is brilliant! Well done!
by steve3000
Mon Mar 19, 2018 11:02 pm
Forum: software: games - high scores
Topic: High Score Challenge - Centipede by Tricky
Replies: 72
Views: 2477

Re: High Score Challenge - Centipede by Tricky

I'd been meaning to try this out, having read so much about it and the high score challenge was the perfect opportunity - very nice conversion =D> Scored 13754 on my second go, so certainly room for improvement, just need to find the time! c1.png PS. I used BeebEm as the JSBeeb link doesn't work for...
by steve3000
Sun Mar 18, 2018 3:40 pm
Forum: wanted
Topic: 3D Construction Kit for Acorn Archimedes
Replies: 23
Views: 1638

Re: 3D Construction Kit for Acorn Archimedes

Ah, ok thanks, good to know it runs on RO3.

To send PMs you need to either have 25 posts, or ask one of the moderators nicely to enable them.
by steve3000
Sun Mar 18, 2018 3:10 pm
Forum: wanted
Topic: 3D Construction Kit for Acorn Archimedes
Replies: 23
Views: 1638

Re: 3D Construction Kit for Acorn Archimedes

:D

What version of 3D construction kit did you get from your purchase and does it work ok on RISC OS 3? There should be a readme file on the disc worth version and release date.
by steve3000
Sat Mar 17, 2018 10:53 pm
Forum: hardware
Topic: A3010 hard disc interface
Replies: 159
Views: 19737

Re: A3010 hard disc interface

...since the podule bus is designed with a 2kb addressable window...? Isn't it 4K words, it's just normally split in two for rom and peripherals. So you could use 4K, if you don't need anything else. Quite right Ian, hadn't considered that :) Even so, 4kb is still a bit limiting...but easily enough...
by steve3000
Sat Mar 17, 2018 1:10 pm
Forum: hardware
Topic: A3010 hard disc interface
Replies: 159
Views: 19737

Re: A3010 hard disc interface

The problem I forsee is what causes the OS to look for a 5th column ROM in that context? RISC OS 3 will look for the extension ROM whatever machine - just need to replicate the extension ROM select line and link up to the correct address lines (I expect...) remember, the A4 also has an extension RO...
by steve3000
Sat Mar 17, 2018 8:12 am
Forum: for sale / freebies
Topic: Worth Taking a Look At
Replies: 2612
Views: 215718

Re: Worth Taking a Look At

Reviewing the pictures and the problems listed by the seller, I can say that it has a SMPSU. Also has a punched out perforated ashtray hole - the perforated ashtray appeared around the time that SMPSUs began being fitted at manufacture, mid way during issue 3 run I believe. Before that there were n...
by steve3000
Sat Mar 17, 2018 8:03 am
Forum: hardware
Topic: A3010 hard disc interface
Replies: 159
Views: 19737

Re: A3010 hard disc interface

danielj wrote:Good point... Schematic?
Is this not online somewhere?

I've got it on paper. IC21 generates Rcs1*... I'll post up a picture later, but it's labelled ASIC, so one of the bank of custom ICs. Might be possible to work out from the inputs maybe...
by steve3000
Fri Mar 16, 2018 10:47 pm
Forum: hardware
Topic: A3010 hard disc interface
Replies: 159
Views: 19737

Re: A3010 hard disc interface

...humm...but then how's it done in the pre-IOEB A5000s? :?:
by steve3000
Fri Mar 16, 2018 6:13 pm
Forum: hardware
Topic: A3010 hard disc interface
Replies: 159
Views: 19737

Re: A3010 hard disc interface

Just a thought, how difficult would it be to add wiring and a socket for an extension ROM on the same board? (As in the A5000...because you have all the address and data lines already in place?) This would make the board a little larger (less so if extension ROM mounted underneath is a possibility) ...
by steve3000
Thu Mar 15, 2018 10:53 pm
Forum: for sale / freebies
Topic: Worth Taking a Look At
Replies: 2612
Views: 215718

Re: Worth Taking a Look At

https://www.ebay.co.uk/itm/323144519162

Title says A310 pcb, but it's an A305 as half the memory is socketted and not populated.

Seems to be mssing MEMC, VIDC and (strangely) the 9 pin RGB out socket, so needs some work, but could be interesting for someone.
by steve3000
Wed Mar 14, 2018 7:47 pm
Forum: hardware
Topic: A3010 hard disc interface
Replies: 159
Views: 19737

Re: A3010 hard disc interface

arananet wrote:Any chance to obtain the schematics of the working board? I mean the design of Vectorlight or Munchausen.

Thanks and Regards.
It was all on vectorlight's website last time I looked?
by steve3000
Sat Mar 10, 2018 6:35 am
Forum: for sale / freebies
Topic: Worth Taking a Look At
Replies: 2612
Views: 215718

Re: Worth Taking a Look At

Quite a big gap at the back - does that make it an early-ish one? The presence of an aperture for a rear reset button makes it an Issue 1, doesn't it? I'm not sure I'm seeing an auxiliary power connector, so an early PSU as well? That looks really desirable; which could lead to a pretty ugly biddin...
by steve3000
Sat Mar 10, 2018 12:21 am
Forum: general
Topic: Today I received.....
Replies: 4658
Views: 312815

Re: Today I received.....

Ok, it wasn't the toughest quiz. It's since been populated. It's an ICS clone, so it works with ZIDEFS. It can also be fitted directly into the motherboard, so no backplane required, I'm quite chuffed, 11 days from start to finish, half of that waiting for the PCB to arrive. :shock: :D =D> Well don...