Search found 6414 matches

by danielj
Tue Sep 18, 2018 6:17 pm
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1471

Re: New econet setup

ANFS and NFS expect the fileserver to be station 254 (unless you tell it otherwise). On the beeb it's hard-coded into the ROM (you can tell it to use a different other than the default), on the master you can set it in the cmos.


d.
by danielj
Tue Sep 18, 2018 3:45 pm
Forum: hardware
Topic: My first (large) CPLD steps (XC9572)
Replies: 16
Views: 557

Re: My first (large) CPLD steps (XC9572)

It's fine interfacing with ttl, I think it barfs with cmos (which is why the internal vfs adaptor for the beebscsi needed a buffer to sort the levels out).

d.
by danielj
Tue Sep 18, 2018 8:32 am
Forum: for sale / freebies
Topic: Worth Taking a Look At
Replies: 2687
Views: 226078

Re: Worth Taking a Look At

Good price! I have been really impressed with mine, it doesn't behave like the cheapo thing that it is.
by danielj
Tue Sep 18, 2018 8:28 am
Forum: for sale / freebies
Topic: VideoNuLA boards
Replies: 51
Views: 8805

Re: VideoNuLA boards

Just looking at that ic you list, it looks like it should work but you'll have to tap vsync and hsync from somewhere (the 6845?) as you only get csync at the rgb output.
by danielj
Tue Sep 18, 2018 8:08 am
Forum: hardware
Topic: Elk disc controllers
Replies: 22
Views: 481

Re: Elk disc controllers

MartinB wrote:
Mon Sep 17, 2018 11:31 pm
Yes, but Windows won’t run on an Electron.... [-(
Ever tried using beebscsi with dfs? :D
by danielj
Tue Sep 18, 2018 7:15 am
Forum: for sale / freebies
Topic: VideoNuLA boards
Replies: 51
Views: 8805

Re: VideoNuLA boards

If you can get hold of a GBS8200 (dirt cheap), they take RGB in (via resistors in the cable to bring the TTL levels down) and will output pretty good quality vga to an LCD. Works well with the NuLA.
by danielj
Tue Sep 18, 2018 5:05 am
Forum: hardware
Topic: AP3-4 - Redesign - First Thoughts
Replies: 23
Views: 961

Re: AP3-4 - Redesign - First Thoughts

Argh, resized.
by danielj
Mon Sep 17, 2018 9:09 pm
Forum: hardware
Topic: AP3-4 - Redesign - First Thoughts
Replies: 23
Views: 961

Re: AP3-4 - Redesign - First Thoughts

Any better? :)
by danielj
Mon Sep 17, 2018 7:52 pm
Forum: hardware
Topic: New hardware suggestion - Pi econet server
Replies: 43
Views: 1380

Re: New hardware suggestion - Pi econet server

What's left on the host side?
by danielj
Mon Sep 17, 2018 5:55 pm
Forum: hardware
Topic: AP3-4 - Redesign - First Thoughts
Replies: 23
Views: 961

Re: AP3-4 - Redesign - First Thoughts

Elminster wrote:
Mon Sep 17, 2018 5:52 pm
Have to keep Dave busy.
Have you put that FreeFi232 together yet? :D
by danielj
Mon Sep 17, 2018 4:15 pm
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1471

Re: New econet setup

There is one socket you can use, but if you've already got RAMFS in there (as Lardo does), you're somewhat stuffed unless you start sacrificing sideways RAM...

d.
by danielj
Mon Sep 17, 2018 3:02 pm
Forum: hardware
Topic: Mitsubishi 4853 floppy drive problems
Replies: 12
Views: 302

Re: Mitsubishi 4853 floppy drive problems

You did. I was just confirming that there were no jumpers that disabled side-select :)

d.
by danielj
Mon Sep 17, 2018 2:26 pm
Forum: hardware
Topic: Mitsubishi 4853 floppy drive problems
Replies: 12
Views: 302

Re: Mitsubishi 4853 floppy drive problems

Doesn't look like there's any jumper setting that'd cause that sort of misbehaviour...

http://www.bitsavers.org/pdf/mitsubishi ... ations.pdf

:?

d.
by danielj
Mon Sep 17, 2018 11:04 am
Forum: hardware
Topic: AP3-4 - Redesign - First Thoughts
Replies: 23
Views: 961

Re: AP3-4 - Redesign - First Thoughts

The gotek uses USB by default, but it can use a very small one! (e.g. a Sandisk Ultrafit) :)

d.
by danielj
Mon Sep 17, 2018 9:41 am
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1471

Re: New econet setup

Thanks Daniel. I have a Retroclinic multi-os so reprogramming is a no go. I would happily ditch View though! I have a battery backed RAM cart which I could try. It made my Master crash last time I tried it though but it has had its firmware updated since. I don’t have a normal cart. I am hapy enoug...
by danielj
Mon Sep 17, 2018 9:25 am
Forum: hardware
Topic: Elk disc controllers
Replies: 22
Views: 481

Re: Elk disc controllers

Interesting idea, Daniel. My initial reaction is: I'd like to keep an external 34 way connector, for legacy drives, and add the HD disc option e.g. MartinB's scheme listed here - But yes that would be an excellent project - Oh! One more thing: It would have to fit into a Pegasus case :lol: as I had...
by danielj
Mon Sep 17, 2018 7:54 am
Forum: hardware
Topic: Elk disc controllers
Replies: 22
Views: 481

Re: Elk disc controllers

@dave - I was just this moment pondering whether or not the redesigned ap3/4 could have a gotek integrated into it, alongside rotary-encoder and OLED display, and then having the option to swap the internal and connected drives... I'd imagine moving a few components to SMD would yield the necessary ...
by danielj
Mon Sep 17, 2018 6:48 am
Forum: hardware
Topic: New econet setup
Replies: 75
Views: 1471

Re: New econet setup

OK. If you put anfs in there you'll loose 2 banks of sideways ram. Do you have a rom cartridge you can stick it in? Or failing that, reprogram the multios chip - ditch viewsheet and stick in anfs (that's what I did). If you have a gotek, that's the easiest way of dealing with ADFS images? Or alterna...
by danielj
Sun Sep 16, 2018 4:56 pm
Forum: hardware
Topic: A3000 keyboard connectors needed please.
Replies: 5
Views: 141

Re: A3000 keyboard connectors needed please.

Sorry :( Messed up the link! :)

d.
by danielj
Sun Sep 16, 2018 3:54 pm
Forum: upcoming and recent events & exhibitions
Topic: Do we need more ABug meets? If so, where should they be?
Replies: 24
Views: 624

Re: Do we need more ABug meets? If so, where should they be?

I'd fear for the fidelity of the power supply...
by danielj
Sun Sep 16, 2018 3:15 pm
Forum: hardware
Topic: A3000 keyboard connectors needed please.
Replies: 5
Views: 141

Re: A3000 keyboard connectors needed please.

Zarchos is banned from here so you won't be able to get in touch with him via this forum.

Mouser do the connectors:
https://www.mouser.co.uk/ProductDetail/ ... 7-520355-0

Make the order up to £30 and delivery is free :)

d.
by danielj
Sun Sep 16, 2018 10:16 am
Forum: hardware
Topic: My first (large) CPLD steps (XC9572)
Replies: 16
Views: 557

Re: My first (large) CPLD steps (XC9572)

That's a 9572XL - they are 3.3V supply - 5V may well make them quite grumpy. The 9572 non-XL parts are OK with a 5V supply IIRC. The inputs will on all, however, tolerate 5V. Common arrangement is to rig up a LM1117MP-3.3 voltage regulator with 2x10uF tants - 1 on the 5V in and one on the 3.3V out. d.
by danielj
Sat Sep 15, 2018 2:24 pm
Forum: general
Topic: Electron versions of archived software
Replies: 53
Views: 663

Re: Electron versions of archived software

They'll all be on Acorn electron World. STH has a fair paucity of elk titles.
by danielj
Fri Sep 14, 2018 8:44 pm
Forum: hardware
Topic: replica Mini-Podule card for a3000 - does it exist
Replies: 1
Views: 124

Re: replica Mini-Podule card for a3000 - does it exist

There were all sorts of mini-podule cards. Which one do you mean? I'm guessing the IDE one? If so, check here: viewtopic.php?f=8&t=14970

d.
by danielj
Fri Sep 14, 2018 7:10 pm
Forum: hardware
Topic: Mitsubishi 4853 floppy drive problems
Replies: 12
Views: 302

Re: Mitsubishi 4853 floppy drive problems

If there's a top head with wires coming off it then they should absolutely be double sided...? Single sided drives just have a felt pad on top.

d.
by danielj
Fri Sep 14, 2018 5:39 pm
Forum: hardware
Topic: A5000 but no display..."Out of Range"
Replies: 13
Views: 419

Re: A5000 but no display..."Out of Range"

If you've reset the cmos RAM it won't know it has a hard drive - press F12 to get a * prompt then type

Code: Select all

*configure idedisks 1
Press return again, and if there's an IDE drive in there you should see it appear!

d.
by danielj
Fri Sep 14, 2018 10:27 am
Forum: general
Topic: apdl.co.uk lost
Replies: 5
Views: 229

Re: apdl.co.uk lost

Nope. You could try contacting 3qd and see how far you get? They bought all the hardware iirc... http://www.riscos.com/

d.
by danielj
Fri Sep 14, 2018 10:19 am
Forum: hardware
Topic: New hardware suggestion - Pi econet server
Replies: 43
Views: 1380

Re: New hardware suggestion - Pi econet server

All the econet code is in there afaik, it's a question of "joining it up" with the hardware. c.f. https://www.riscosopen.org/forum/forums/9/topics/2627

d.