Search found 783 matches

by flynnjs
Fri Jun 29, 2018 6:56 am
Forum: hardware
Topic: Interesting video device
Replies: 2
Views: 189

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: 189

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: 1043

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: 1043

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: 4684
Views: 316065

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: 15096

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: 28
Views: 1279

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: 15096

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: 15096

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: 61271

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: 15096

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: 4728

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: 4728

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: 1983

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: 397

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: 15096

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: 4728

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: 879

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: 4728

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: 15096

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.
by flynnjs
Sat Feb 03, 2018 5:43 pm
Forum: hardware
Topic: R65C02 in a Beeb
Replies: 51
Views: 1875

Re: R65C02 in a Beeb

The caps are both marked 22K. I assume that's 22pF with some type of tolerance code, not 22nF.

I'll try the test after dinner.
by flynnjs
Sat Feb 03, 2018 2:20 pm
Forum: hardware
Topic: R65C02 in a Beeb
Replies: 51
Views: 1875

Re: R65C02 in a Beeb

I'll have a closer peek at the cap values and run the tests tonight.
by flynnjs
Sat Feb 03, 2018 11:49 am
Forum: hardware
Topic: R65C02 in a Beeb
Replies: 51
Views: 1875

Re: R65C02 in a Beeb

I added some extra decoupling between pins 1 and 8, and that made no difference. When I bought my R65C02, over the counter at Solidisk, the technician told me an extra capacitor may be needed across an IC. This was way before I'd studied any electronics so I was just following instructions. I do re...
by flynnjs
Fri Feb 02, 2018 6:56 pm
Forum: hardware
Topic: R65C02 in a Beeb
Replies: 51
Views: 1875

Re: R65C02 in a Beeb

hoglet wrote: I'm wondering if anyone else is running an R65C02 in their Beeb? I have a couple of these:
- a R65C02P2 date code 8424 that I think is original
I'm running a R65C02P2 date code 8426 and have had it since brand new.
I'll try to run some tests this weekend.
by flynnjs
Sat Jan 27, 2018 8:28 am
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15096

Re: BeebSCSI mini

Batch 3 (confirmed, qty 22)
1x KenLowe
1x YuT666
2x matt_nottm
1x Coeus
5x daveejhitchins
2x Ottly
1x ask_nz
1x lcww1
1x M Sadler
1x mph1708
1x sydney
1x Bagpus
2x Beebmaster
1x timcal1968
1x cmorley

Batch 4 (unconfirmed)

2x bear
1x bitseeker
1x Ottly
1x stevei2791
by flynnjs
Thu Jan 25, 2018 5:21 pm
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15096

Re: BeebSCSI mini

No because I already have the PCBs and getting more PCBs made just for qty 10 wouldn't be economical.
As with the original red prototypes it's always possible to make an extension from a staight-through
connector.
by flynnjs
Thu Jan 25, 2018 7:36 am
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15096

Re: BeebSCSI mini

That's the 10 then. I'll get prices in for the component and then update the shop with some stock.
by flynnjs
Tue Jan 23, 2018 10:14 pm
Forum: for sale / freebies
Topic: BeebSCSI mini
Replies: 168
Views: 15096

Re: BeebSCSI mini

I think we have interest in 4 so far. I'll do another batch if we get to 10.
by flynnjs
Thu Jan 04, 2018 11:55 am
Forum: for sale / freebies
Topic: New TEAC floppy drives
Replies: 55
Views: 4728

Re: New TEAC floppy drives

Alway nice to resurrect an old thread :) A large part of the price I originally came up with was to cover the bulk shipping to me and I've been holding off putting these on the webshop whilst I came up with an alternative. I now have a way of getting these to me at much lower cost so I'm going to pu...