Search found 792 matches

by flynnjs
Tue Sep 25, 2018 9:03 pm
Forum: hardware
Topic: What are people happy soldering ?
Replies: 33
Views: 496

Re: What are people happy soldering ?

Where's the 0.4mm and 0,5mm options :mrgreen:
by flynnjs
Wed Sep 19, 2018 6:13 pm
Forum: hardware
Topic: New hardware suggestion - Pi econet server
Replies: 33
Views: 926

Re: New hardware suggestion - Pi econet server

USB Econet uses 2x SIP491 (1 for clock, 1 for data) and 1x LM339 (collision detect)
by flynnjs
Mon Sep 17, 2018 8:07 pm
Forum: hardware
Topic: New hardware suggestion - Pi econet server
Replies: 33
Views: 926

Re: New hardware suggestion - Pi econet server

Not alot, we have all the USB stuff working and some socketry stuff going on for the the AUN side. Just needs some state tracking and some header addition and stripping when passing between each side. There are a couple of threads going as libusb receive is a bit weird: if you receive in timeout mod...
by flynnjs
Mon Sep 17, 2018 6:54 pm
Forum: hardware
Topic: New hardware suggestion - Pi econet server
Replies: 33
Views: 926

Re: New hardware suggestion - Pi econet server

there’s this one from flynnjs - The USB Econet dongle works. But there's been lack of enthusiasm to finish the host software. We have something mostly working on Linux+Windows but none of those involved would attempt anything on riscos. I could make dongles available to anyone willing to commit to ...
by flynnjs
Sat Sep 15, 2018 8:45 am
Forum: upcoming and recent events & exhibitions
Topic: ABUG Cambridge Sept 7th-9th 2018 BOOKING THREAD
Replies: 203
Views: 7042

Re: ABUG Cambridge Sept 7th-9th 2018 BOOKING THREAD

When we were putting everything back in to the classroom after the event, we noticed two or three boxes full of 5.25" floppies left on Paul1ie's desk. I brought along a few boxes, some originals and some copies. John had a rummage through and took a few. I didn't bring any of them back so they may ...
by flynnjs
Sat Sep 15, 2018 8:42 am
Forum: upcoming and recent events & exhibitions
Topic: ABUG Cambridge Sept 7th-9th 2018 BOOKING THREAD
Replies: 203
Views: 7042

Re: ABUG Cambridge Sept 7th-9th 2018 BOOKING THREAD

Coeus wrote:
Fri Sep 14, 2018 7:00 pm
Nigel, you talking about ROM dumping makes me wonder - were you the person seated to the
right of, i.e. next seat away from the window from, flynnjs?
Nope that was Phill "Prime"
by flynnjs
Fri Sep 07, 2018 11:43 am
Forum: upcoming and recent events & exhibitions
Topic: ABUG Cambridge Sept 7th-9th 2018 BOOKING THREAD
Replies: 203
Views: 7042

Re: ABUG Cambridge Sept 7th-9th 2018 BOOKING THREAD

Should be on-site around 1500 ... see you soon
by flynnjs
Fri Sep 07, 2018 11:41 am
Forum: hardware
Topic: USA spec BBC model B
Replies: 33
Views: 841

Re: USA spec BBC model B

On the B+ Acorn provided 32K byte compatible EPROM/ROM sockets suitable for 2764, 27128 and 27256 EPROMs. I've wheeled my .DE Beeb out for the weekend so I'll check where A14 goes. I know for sure that ROMSEL is different on DE/US to a normal B as I've been around it whilst fixing it, so it may wel...
by flynnjs
Sun Sep 02, 2018 11:03 pm
Forum: hardware
Topic: USA spec BBC model B
Replies: 33
Views: 841

Re: USA spec BBC model B

AFAIK the US and German mobos are the same, it's only the OS and Language that differ.
The German OS only differs from a standard UK OS in the startup banner, other than
that they are byte identical.
I suspect many "US converted back to UK" beebs are actually just German ones.
by flynnjs
Fri Jun 29, 2018 6:56 am
Forum: hardware
Topic: Interesting video device
Replies: 2
Views: 234

Re: Interesting video device

The data sheets aren't the best in the world. I think you are correct, the control registers are only accessed via SPI and parallel is for RAM accesses only. The video engine runs a microcode which allows selecting different bits for display which could be interesting for page flipping etc.
by flynnjs
Thu Jun 28, 2018 8:42 pm
Forum: hardware
Topic: Interesting video device
Replies: 2
Views: 234

Interesting video device

http://www.vlsi.fi/en/products/vs23s040.html

Can be operating in 8-bit parallel mode and has RGB out with reasonable colour depth at good resolution.
I feel another project coming on :-)
by flynnjs
Sun Jun 10, 2018 7:53 am
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1116

Re: US BBC micro restoration - help needed

In fact I think the MODE 7 issue I have may be due to incorrect link settings for the VidProc, but I can't find what the links should be anywhere. It may be that this PCB is only laid out for later versions of Vidproc just like the UK beebs that had the "hidden" wire on the underside. Do you have a...
by flynnjs
Sun Jun 03, 2018 9:48 pm
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1116

Re: US BBC micro restoration - help needed

I'm assuming the circuit itself is pretty similar, if not identical, given that it runs normal Beeb software...(at least I'm hoping it will, when it is working!?). I know for a fact the ROMSEL circuitry is different to a regular beeb as I found when repairing my German Beeb (same as a US Beeb). I w...
by flynnjs
Sat May 19, 2018 8:11 am
Forum: general
Topic: Today I received.....
Replies: 4792
Views: 327749

Re: Today I received.....

1024MAK wrote:Today's and yesterday's arrivals...
It was pot-luck who got the red PCB. I had just one of those left.
The green ones are laid out with the connector the other side so
it doesn't need the extension.
There are no more PCBs (red or green) left now.
by flynnjs
Sat May 05, 2018 3:36 pm
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15948

Re: BeebSCSI mini

There are 9 more, ready to go out this week as I've hand soldered up the loose boards I had.
I really do have no more then.
by flynnjs
Thu Apr 26, 2018 6:22 am
Forum: upcoming and recent events & exhibitions
Topic: Midlands ABUG November 2018
Replies: 32
Views: 1840

Re: Midlands ABUG November 2018

Good news. I'll be there
by flynnjs
Tue Apr 10, 2018 5:04 pm
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15948

Re: BeebSCSI mini

3rd batch are now fully dispatched.

I have found a few loose boards which I might make up if I find time but at most will be 2 or 3.
by flynnjs
Thu Apr 05, 2018 6:28 am
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15948

Re: BeebSCSI mini

The hardware was assembled at the weekend but I ran out of time to program and test them.
Should be able to do that in the next few days.
by flynnjs
Thu Apr 05, 2018 6:27 am
Forum: for sale / freebies
Topic: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro
Replies: 603
Views: 62417

Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

alienkidmj12 wrote:are there likely to be any of these boards made ?
Unlikely as demand has pretty much dried up and it's only sensible to do a
batch of 10 or more.
by flynnjs
Mon Mar 26, 2018 6:51 am
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15948

Re: BeebSCSI mini

Sorry, had a bout of illness recently and it's put me behind a bit. I'm hoping to have these finished this week.
by flynnjs
Sat Mar 03, 2018 8:30 am
Forum: for sale / freebies
Topic: New TEAC floppy drives
Replies: 55
Views: 5034

Re: New TEAC floppy drives

Waiting for batch 2: VincentVega (x2) lcww1 (x1) alienkidmj12 (x1) Bagpuss (2) cervaro (2) As I'm sure the people who have received these will vouch for, these are brand new, unopened in the antistatic bag and appear to have been stored correctly. However, please remember that they were manufactured...
by flynnjs
Fri Feb 23, 2018 8:14 am
Forum: for sale / freebies
Topic: New TEAC floppy drives
Replies: 55
Views: 5034

Re: New TEAC floppy drives

There were no more hands shown so I completed the order.
These will get posted out on Saturday.
If there's enough interest then I might do another batch in a few months time.
by flynnjs
Sat Feb 17, 2018 7:33 pm
Forum: stardot.org.uk
Topic: Stardot logo fixed and now spud and banana free!
Replies: 57
Views: 2294

Re: Stardot logo infected with spuds!

Dunno if this means anything, but I've noticed that whenever I refresh the page, hoping to see what bit of fruit or veg is going to show up next, that it always trips to a sort of text only version first before loading properly, like this: Screenshot_2018-02-17_15-26-32.png Think that's just until ...
by flynnjs
Fri Feb 16, 2018 7:15 am
Forum: acorn atom
Topic: ICET and XC6SLX9 Mini setup.
Replies: 3
Views: 418

Re: ICET and XC6SLX9 Mini setup.

Also, don't make links JPA and JPB (to power from the target) unless you unsolder a diode from the FPGA board. Otherwise you risk trying to power the whole Beeb from the USB port. Dave Just be clear, those jumpers are to self power the FPGA should you be using it without USB. For example, I have th...
by flynnjs
Thu Feb 15, 2018 11:49 pm
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15948

Re: BeebSCSI mini

Whilst Daniel is generally correct, this time I did phrase my post "If you're in the list for Batch 3". So someone has just jumped right in there who wasn't on that list. Tonight it's late and I can't be bothered to police it but in the morning I might feel different and just refund that person. Don...
by flynnjs
Sun Feb 11, 2018 4:11 pm
Forum: for sale / freebies
Topic: New TEAC floppy drives
Replies: 55
Views: 5034

Re: New TEAC floppy drives

Can I have a "show of hands" to see who else would like one?
I'm not sure how many more I can carriage but I'd like to get
these to people who would like them.
by flynnjs
Sat Feb 10, 2018 6:51 pm
Forum: hardware
Topic: Screen shadow memory
Replies: 18
Views: 988

Re: Screen shadow memory

... but neither the Aries or the Solidisk are fully Master compatible as neither
have the ability to display from either bank which the Master can.

Meanwhile, I have something in the pipeline which might :)
by flynnjs
Fri Feb 09, 2018 5:00 pm
Forum: for sale / freebies
Topic: New TEAC floppy drives
Replies: 55
Views: 5034

Re: New TEAC floppy drives

These are now listed on my shop too.
by flynnjs
Fri Feb 09, 2018 4:30 pm
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15948

Re: BeebSCSI mini

If you're in the list for Batch 3 (previous post) then please go ahead and place an order on my shop.
There are 22 available.