Search found 1016 matches

by fordp
Tue Nov 17, 2015 9:46 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

It is down to how the path is quoted.

The ones that work have ../../AtomBusMon

and those two do not have it that way!

I have copied them over for now.
fpag.jpg
fpag.jpg (22.69 KiB) Viewed 560 times
I have it building now with 193 warnings!

FordP
by fordp
Tue Nov 17, 2015 9:10 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Hi Dave,

I have cloned a few repositories now :D

but it looks like AtomBusMon/oho_dy1/OhoPack.vhd and AtomBusMon/oho_dy1/Oho_Dy1.vhd are missing!

FordP
by fordp
Tue Nov 17, 2015 8:50 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

I just cloned the github repository downloaded Quartus and I get the errors below: Which is this 6502 debug tool I guess is in a separate repository. Info: ******************************************************************* Info: Running Quartus II 64-Bit Analysis & Synthesis Info: Version 13.0.1 Bu...
by fordp
Tue Nov 17, 2015 12:58 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

My DE1's are very old and do not have the SRAM problem I think. Earlier in this thread (or maybe another thread) you said you were using the RAM at 32Mhz and could maybe clock it down to 4MHz which was of course the speed of the RAM on the actual BBC. Your idea to gate the control lines is good as i...
by fordp
Tue Nov 17, 2015 8:11 am
Forum: hardware
Topic: UMI 2B Sequencer for BBC
Replies: 15
Views: 3105

Re: UMI 2B Sequencer for BBC

Did you get anywhere with getting the ROMs you need?

FordP
by fordp
Tue Nov 17, 2015 7:55 am
Forum: hardware
Topic: MIDI on the BBC
Replies: 3
Views: 685

Re: MIDI on the BBC

Must have searched badly before.

Looks like it was an "UMI 2B".

Cheers All,

FordP
by fordp
Tue Nov 17, 2015 7:46 am
Forum: hardware
Topic: MIDI on the BBC
Replies: 3
Views: 685

MIDI on the BBC

Does anybody know the Hardware and Software used by Vince Clark in the 1980's. I did know back in the day but I cannot remember now. I know I could not afford it. I saw them live. I could hear the BBC disk drive between the songs and you could see him pressing a button on a box on top of the BBC to ...
by fordp
Mon Nov 16, 2015 10:54 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Thanks for the prompt reply. I am pleased my spare DE1 is no longer gathering dust. Do not worry about the postage, its on me. It was only the price of a couple of beers anyway. I look forward to finally preserving some of my old programs and being able to run/ play them again on a sturdy modern pie...
by fordp
Mon Nov 16, 2015 10:11 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Any early adopters for the Altera DE1 Build? :D :D :D ---- Snip ------ Have fun, and let me know if you have any problems..... Dave Oops just seen this. I will find some time to try this before the weekend and report back. I may be running my Yatzee game I wrote during the '80s before too long :D C...
by fordp
Mon Nov 16, 2015 9:59 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Well done Dave, Amazing progress in such a short time. I like your audio hack to avoid aliasing. Are there any low pass filters to match the BBC circuit or is the output notionally identical to the output of the sound chip? I expect the sound output will have to mix Sid's, cassette output and M5000'...
by fordp
Mon Nov 16, 2015 12:02 pm
Forum: general
Topic: Today I received.....
Replies: 5275
Views: 400505

Re: Today I received.....

Just received this from FordP: IMG_0142.JPG =D> =D> =D> =D> =D> =D> =D> Many thanks! The BeebFpga adventure can continue...... Wow, Royal Mail did us proud! It is great to see another of my DE1 boards put to good use. My DE1 is waiting to do BBC things for the first time ;) Yay! FordP
by fordp
Sat Nov 14, 2015 12:47 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Econet should be easy too. Just two RS485 drivers needed on the FPGA and the econet chip in HDL. It's a bit more than that, you need the op-amp and resistors to do it well. I am no expert. This was a bit of guess work after looking at the beeb circuit diagram. It looked like the drivers were simila...
by fordp
Fri Nov 13, 2015 9:19 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

DE1 dispatched today as promised!
by fordp
Thu Nov 12, 2015 11:29 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

1024MAK wrote:The hardest part with this is finding suitable settings to program the UART (or similar) chip to get the correct transmission (baud) rate.

Mark
This is not hard on an FPGA as you know you want 31250 baud this is super simple to generate.
by fordp
Thu Nov 12, 2015 2:28 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Hi All, Following the official recommended circuit is very cheap especially compared to the cost of my Midi modules and Synths ;) Retro Computing/ Computer Preservation is my hobby, but I have worked in the Electronic industry for 27 years, so I know that cutting corners can come back and bite you! ...
by fordp
Thu Nov 12, 2015 10:46 am
Forum: acorn atom and system
Topic: ATOM FPGA
Replies: 446
Views: 50936

Re: ATOM FPGA

Hi Dave,

I will send the DE1 tomorrow!

FordP
by fordp
Thu Nov 12, 2015 9:00 am
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Midi Info

Hi,

Here is what you need to know for BBC Midi:
Electronics: http://www.midi.org/techspecs/ca33.pdf
Old Interface : http://mdfs.net/Info/Comp/BBC/MIDI/jgh1.gif

fordp
by fordp
Wed Nov 11, 2015 6:25 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

I don't know what's next yet, but I'm sure I'll find something to keep me entertained :D Dave Econet/Ethernet solution using an RJ45 port on a wing? :) This would be great for those who want to build an Econet/L3 Fileserver/Network Bridge etc, but are short on space. :mrgreen: The wing could also u...
by fordp
Wed Nov 11, 2015 6:23 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Hi Dave,
I will send you a DE1 if you send me your address.

MIDI hardware is pretty simple to implement. See the Mist MIDI board for what is needed.

My interface is just a 6850 on the user port so very simple to pop in an FPGA.

Happy days :D

FordP
by fordp
Wed Nov 11, 2015 4:28 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Well done Dave this is awesome. The high page setting when using the DFS is a long standing problem and this new MMFS sounds great. I will have to see if I can use it on my real Master. I have one question. Will your HDL still run on the DE1 that it came from in the first place as I do not have your...
by fordp
Mon Nov 09, 2015 11:51 am
Forum: hardware
Topic: RGB out through an FPGA to HDMI
Replies: 27
Views: 5884

Re: RGB out through an FPGA to HDMI

Great work.

If HDMI is ever fixed what do you think about Acorn projects running on a board like this:
http://www.myirtech.com/list.asp?id=502

I would love to see a BEEB FPGA with a real Cortex A9 as a Second processor ;)

Cheers.

FordP
by fordp
Wed Nov 04, 2015 5:34 pm
Forum: acorn atom and system
Topic: ATOM FPGA
Replies: 446
Views: 50936

Re: ATOM FPGA

Well I have a spare one still in it's box. PM me if you change your mind.
by fordp
Wed Nov 04, 2015 1:43 pm
Forum: for sale / freebies
Topic: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro
Replies: 603
Views: 68917

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

Hi,

Put me down for a Model B for my real master.

Will it mount in a Wedge case as I have a dead 6502 Second Processor in my loft I could mount it in!

I already have a real and hopefully working 32016 Second Processor!

fordp
by fordp
Wed Nov 04, 2015 12:25 pm
Forum: acorn atom and system
Topic: ATOM FPGA
Replies: 446
Views: 50936

Re: ATOM FPGA

Do you still want a DE1? Phil, The DE1 looks like an excellent board, and has everything needed (and more) including on-board SRAM and FLASH. Most of the Atom functionality is in Atomic_core and the VHDL here is pretty generic RTL VHDL. You'll need to create a new top level VHDL module that's specif...
by fordp
Wed Nov 04, 2015 8:27 am
Forum: hardware
Topic: Anyone here ever done anything 'substantial' with a Cambridge co-processor?
Replies: 3
Views: 545

Re: Anyone here ever done anything 'substantial' with a Cambridge co-processor?

I used my 32016 to print from page maker using a BBC basic program I wrote. It was so much faster than the built in printing of the package as I could load the entire page in to RAM. I was printing two pages to one side of A4 (Sideways). I could then print a booklet from my Taxan Kaga. Yes Panos was...
by fordp
Fri Oct 30, 2015 8:25 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 495
Views: 40104

Re: Beeb FPGA

Hi, I saw tour post on FpgaArcade.com. This is awesome stuff you are doing with Mike Sterling's core. I have a few FPGA platforms as well as a real BBC Master and a broken BBC B. I will be following your progress and will try and get your cores running on my DE1 if possible. My feature requests are ...