Search found 85 matches

by sundbyk
Thu Jun 28, 2018 10:18 am
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Hi yes I want to purchase from his shop but he says to ask for total amount if buying more than 1 board ? I'll just go ahead and buy 2 boards from his shop and fill out the shipping If there's any problems I'm sure come back to me ☺ Hi, The webshop should work. The reason for contact need was becau...
by sundbyk
Sat May 26, 2018 1:34 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

dp11 wrote:
Sat May 26, 2018 12:46 pm
I suspect you are using basic IV e.g. A master. To be consistent we using Basic II for all the timinigs.
Hi,

Your are right.
I did use the Master version.
Thanks for clearing that up for me.
:-)

Kjell S.
by sundbyk
Sat May 26, 2018 12:01 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

Pi3b+ is much faster. Timings from memory for fast 6502 Pi2 slower than pizero Pizero 290MHz Pi3 290MHz Pi3B+ 336MHz I have some more speed increases in the pipeline that take the 3b+ to 340MHz. The original acorn external 6502 copro was 3MHz so 3b+ is over 110 times faster. Other cores see a speed...
by sundbyk
Sun Jan 21, 2018 10:26 am
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

KenLowe wrote:I'm not personally affected by this issue (don't have any master boards), but what great service from someone who is effectively doing this as a bit of a hobby =D> =D> =D>. Couldn't ask for more!
Thanks Ken,

Kjell S.
by sundbyk
Sat Jan 20, 2018 1:44 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

For those of you with an internal Master level shifter who are experiencing video interference: The new updated PiTubeDirect SignalConverter BBC Master version (1.4) in now ready to be shipped. It have been test by a group of people in in Norway and UK and the interference is now gone. If you have t...
by sundbyk
Sat Jan 20, 2018 1:43 pm
Forum: hardware
Topic: BBC Master screen interference PiTube direct
Replies: 57
Views: 2364

Re: BBC Master screen interference PiTube direct

For those of you with an internal Master level shifter who are experiencing video interference: The new updated PiTubeDirect SignalConverter BBC Master version (1.4) in now ready to be shipped. It have been test by a group of people in in Norway and UK and the interference is now gone. If you have t...
by sundbyk
Tue Dec 19, 2017 7:28 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

There are some problems with snow effects on some BBC Master's using the internal PiTubeDirect Signal Converter for the Master. The ones connected to the external tube works fine. It seem like are different version of chips in the Master causing the problem, but this need to be investigated. To see ...
by sundbyk
Tue Dec 19, 2017 7:23 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

There are some problems with snow effects on some BBC Master's using the internal PiTubeDirect Signal Converter for the Master. The ones connected to the external tube works fine. It seem like are different version of chips in the Master causing the problem, but this need to be investigated. To see ...
by sundbyk
Tue Dec 19, 2017 7:11 pm
Forum: hardware
Topic: BBC Master screen interference PiTube direct
Replies: 57
Views: 2364

Re: BBC Master screen interference PiTube direct

There are a problem with snow effect on some BBC Master's using the internal PiTubeDirect Signal Converter for Master. The ones connected to the external tube works fine. It seem like there are different version of chips in the Master causing the problem, but this need to be investigated more. Will ...
by sundbyk
Tue Dec 19, 2017 7:08 pm
Forum: hardware
Topic: BBC Master screen interference PiTube direct
Replies: 57
Views: 2364

Re: BBC Master screen interference PiTube direct

Hi Dave,

The resistors are 33 ohm and not 330 as I previously said.
I have tested my master and it does not have this problem.

Kjell S.
by sundbyk
Fri Dec 15, 2017 3:31 pm
Forum: hardware
Topic: BBC Master screen interference PiTube direct
Replies: 57
Views: 2364

Re: BBC Master screen interference PiTube direct

Hi, When designing the first version of the master card I had the same problem, but I thought it was noise on the datalines. Because when I added the inline 33ohm resistors on the data lines the noise was gone. I will change the design and make new cards. I will see what we can do with replacing the...
by sundbyk
Wed Nov 22, 2017 8:39 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

My Anti-virus (ESET NOD32) seems to think the site has malicious code on it :-/ Website blocked The web page is on the list of websites with potentially dangerous content. Access to it has been blocked. Hi, This is probably because the site stores a lot of old 8 bit code. I maybe need to put the mi...
by sundbyk
Wed Nov 22, 2017 8:28 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Hi Jon, They are still in demand and in production. The easiest way is via my web shop. http://www.sundby.com/index.php/product-category/bbc-micro/ If you have any problems please let me know. Kjell S. My Anti-virus (ESET NOD32) seems to think the site has malicious code on it :-/ Website blocked T...
by sundbyk
Wed Nov 22, 2017 7:11 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Hi Jon, They are still in demand and in production. The easiest way is via my web shop. http://www.sundby.com/index.php/product-category/bbc-micro/ If you have any problems please let me know. Kjell S. My Anti-virus (ESET NOD32) seems to think the site has malicious code on it :-/ Website blocked T...
by sundbyk
Wed Nov 22, 2017 1:06 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Hi Jon,

They are still in demand and in production.
The easiest way is via my web shop. http://www.sundby.com/index.php/product ... bbc-micro/
If you have any problems please let me know.

Kjell S.
by sundbyk
Wed Jun 07, 2017 6:52 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

Thanks Dave,

Gooood work.
Been using the release candidate on Pi Zero W for a while no without problems.

Kjell S.
by sundbyk
Fri Apr 07, 2017 3:38 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

I have done some testing with it today.
It does not seem to load the kernel at all.
There are no out from the debug kernel.
I loaded the old release from October and that works fine.

So it just seem to be a problem recognizing the Pi Zero W at boot.

Kjell S.
by sundbyk
Thu Apr 06, 2017 6:36 pm
Forum: hardware
Topic: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)
Replies: 1066
Views: 94323

Re: Pi-based Co-Pro on the cheap - 100MHz 6502 for £10? (now 274MHz)

Hi,

I just got hold on the new Pi Zero W, but does not seem to boot correct.
Ony tested with Boa release.

Has anyone got this working?

Kjell S.
by sundbyk
Sat Feb 11, 2017 10:46 am
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Got the serial terminal working. It didn't work properly initially, I was scratching my head wondering why and wondering why the serial buffer chip was getting warm. GND and RX are the wrong way around on the silkscreen print - master version! That would explain what killed my master! Hi, Sorry for...
by sundbyk
Thu Feb 02, 2017 8:27 am
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

I'm trying to book a Pi 3 with an SD card from sundby.com but I'm not sure it's working. When powering on using the sundby.com SD card the red LED on the Pi comes on, the green flashes once and then the red LED stays on. Is this expected? I have a different SD card that seems to Linux boot fine. So...
by sundbyk
Thu Feb 02, 2017 8:23 am
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Make sure you connect it with the BBC powered off, do not do what I did :( It would be tricky to hook up to the BBC and as the BBC Cannot multi-task easily it would not be that useful either. Oh no what happened? :( I've found a tiny MAX3232 converter board that will fix onto the CoPro pcb. That ca...
by sundbyk
Wed Jan 25, 2017 2:26 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

sirmorris wrote:
sundbyk wrote:Needed to buy some new equipment the get the new chips soldered.
:D
LOL! I know that excuse ;)
So true. ;-)
by sundbyk
Wed Jan 25, 2017 12:55 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

mw0uzo wrote:
sundbyk wrote:
mw0uzo wrote:Ordered! :D
Thanks,

Will ship it today.
:-)

Kjell S.
I've got a Pi 1, I'm assuming I can desolder the composite video connector for it to fit. Any signal lines used on the extra pins?
Yes, that will work, but I would highly recommend buying a Pi Zero for £4. Much better solution.
by sundbyk
Wed Jan 25, 2017 7:57 am
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

mw0uzo wrote:Ordered! :D
Thanks,

Will ship it today.
:-)

Kjell S.
by sundbyk
Thu Jan 19, 2017 6:56 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Hi, The Master already has the new one in rev 1.2. The under the BBC and external ones are at rev 1.4. I have flips the chips to the other side for more space on the "Under BBC" version http://www.sundby.com/wp-content/uploads/2017/01/20170119_194450-1024x628.jpg http://www.sundby.com/wp-content/upl...
by sundbyk
Mon Jan 16, 2017 2:08 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Hi, New batch of signal converter is available. I made the external and the on "fitted under BBC" version a little bit smaller so it will now fit better under the BBC Master. have also added some resistor networks for better signals. (Less noise) Same price as before on this. This price of the inter...
by sundbyk
Sat Dec 31, 2016 12:57 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

Hi Guido,

Good to hear that it was the transport that broke the old board and the new is working.

Happy new year to you,

Cheers,

Kjell S,
by sundbyk
Wed Dec 21, 2016 8:35 pm
Forum: for sale / freebies
Topic: PiTubeDirect signalconverter for BBC Micro
Replies: 136
Views: 12074

Re: PiTubeDirect signalconverter for BBC Micro

I think, on the Zero at least, the LED is toggled for each Tube access, as a kind of activity light: https://github.com/hoglet67/PiTubeDirect/blob/8662441bf4df7db90a474e5d40fd3e8de755a5ed/src/tube-ula.c#L479 On my Pi3 it doenst seems to be toogled. On my Pi A+ only on a BREAK. Shouldnt it flicker m...