Search found 281 matches

by aotta
Tue Sep 15, 2020 8:52 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Thank you Ian for info and link, i've just place an order to the chinese pcb builder, i can't wait to use RGBtoHDMI with Amiga and Atari 800xl too!
And, about Atari 8 bit, is planned a TIA version of C0pperdragon's board for use with an Atari 2600 too?
by aotta
Tue Sep 15, 2020 8:21 am
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Well, i'm confident about the results of the tests! And, about the Denise adapter published in the github, it is tested and working? i didn't found any info about it here in the thread, only a mention about your idea to use a simple direct shifter for the Amiga.. it's a very interesting solution and...
by aotta
Sun Sep 13, 2020 12:13 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Yes, but it will require a new 12 bit PCB with the extra 4 bits Ops.. i've two 3bit board, five 6bit board and five 8bit boards.. it seems i've to find more space for some new ones! :lol: IanB, sorry for quoting again, but looking for the "new 12 bit PCB" in your Dev branch, and realized that perha...
by aotta
Tue Sep 08, 2020 2:16 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

When you have finished palette and profile files, post them and I'll add them to the next release. Yes, the geometry was corrected, here the settings and new samples: Aquarius.txt Tea1002.bin.txt (added .txt suffix for attaching here) capture15.png capture16.png capture20.png capture0.png
by aotta
Tue Sep 08, 2020 8:04 am
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Thank you Ian, i didn't thought about little endian, but you confirmed i computed the bytes in right order. So, i look again to my bad results: capture0.png and... i found it was only due to a bad soldering in a Cpld's pin! capture2.png Now colours are aligned to TEA1002 datasheet values, i have to ...
by aotta
Mon Sep 07, 2020 11:01 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

[ The palette table is 256 32 bit entries (1K) and each 32 bits is 0xMMBBGGRR where RR, GG, BB are the RGB values and MM is the value used in mono mode with all values from 0x00 to 0xFF The 8 bit index into the 256 entries is constructed from the input bits as follows: X2,X1,b,g,r,B,G,R So if all b...
by aotta
Sun Sep 06, 2020 11:44 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

The palette folder is created on the SD card at first bootup of a fresh install and contains all the palettes found it, thank you! now i'll try to decode the table format.. Yes, but it will require a new 12 bit PCB with the extra 4 bits Ops.. i've two 3bit board, five 6bit board and five 8bit board...
by aotta
Sun Sep 06, 2020 11:29 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

I tested different palette and tintes, but with no results. In schematics, i noticed the TEA use a "invert" signals in addition to RGB ones, may be i need it too? how can i use it? You will need to create a custom palette table in the palettes folder so first you need to make a table of which digit...
by aotta
Sat Sep 05, 2020 12:08 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

I'm playing for using the RGBtoHDMI with my Mattel Aquarius, and i get decent images wiring the digital RGB and CSync signals directly from the TEA IC: Aquarius.jpg i have to find the right setting, since i didn't find any info about pixel clock and geometry, but it's not the big problem now.. setti...
by aotta
Tue Aug 25, 2020 6:21 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Not properly a retrocomputer... but we can add the Colecovision to the list of RGBtoHDMI's supported machines:
capture7.png
capture12.png
capture13.png
with cabling directly the TMS9929 Y,Yr and Yb pins, and this settings:
Colecovision.txt
(164 Bytes) Downloaded 4 times
by aotta
Tue Aug 18, 2020 5:45 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

IanB wrote:
Tue Aug 18, 2020 5:43 pm
Nice work with the SC3000 & TI99/4a.
It's your work Ian! =D>
by aotta
Mon Aug 17, 2020 10:09 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Finally 6pins cables arrived, and could tested RGBtoHDMI with my TI99/4a:
foto5.jpg
capture1.png
I used the default TI99 setting, only lowered the Y-Low to 43 for avoid some noise on purple.
And, i had no "thermal issue" as Ian found in his tests, stable images since cold booting.
by aotta
Wed Aug 12, 2020 5:46 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

After the good results with SVI-328, i take again my SC-3000 that had some issues when first tested. Due to the same VideoProc, i thought the signals have to be spuried by the logic used to create composite output. So, i simply detach the connector to the daughter board and retested: inside.jpg patt...
by aotta
Thu Aug 06, 2020 12:02 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

With a big help from Ian, i made some tests with TMS9929 retro hardware: i have not a good results with the SEGA SC-3000, but tested the same yuv to RGBtoHD cable with a Spectravideo SVI-328 and... it worked fine!
capture7.png
capture6.png
capture5.png
SVI328.txt
(165 Bytes) Downloaded 8 times
by aotta
Tue Aug 04, 2020 8:28 am
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Impressive! Waiting for your progress!
And, about the computing power, could using a pi4 instead of the pi0 be useful?
by aotta
Wed Jul 29, 2020 11:46 am
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Cable for C64 made and tested succesfully!
c64.png
Couldn't tested the TI99/4A yet, becouse i found a DRAM issue after getting it out of his box... waiting for its repairing, i'll give a try to others TMS9929 video processor based ones (spectravideo SVI-328 and Sega Sc-3000).
by aotta
Wed Jul 22, 2020 11:01 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

I am not near my machine now so can't try the video jack cable that came with the FPGA board ATM. I have only used the new video jack for RGBtoHDMI so far. well, give a try to the component jack output: i got an excellent quality (c64c and 8565r2 in my test), near the hdmi one! As expected for RGBt...
by aotta
Wed Jul 22, 2020 10:30 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Thank you both for confirming..I'll made further tests I tried the connection to the standard video port and you are right, no obvious changes regardless of switch position or jumper. It is only the jack output that seems to be affected by the new tweaks which makes sense I guess -- this is where I...
by aotta
Wed Jul 22, 2020 8:41 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Thank you both for confirming..I'll made further tests
by aotta
Wed Jul 22, 2020 8:13 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Yup, fantastic job by Ian and C0pperdragon. With no FPGA board link or switch set I get this instead of the standard palette: IMG_7430.jpeg Did you reprogram your CPLD with the beta3 RGB2HDMI code from Ian? No, i've not yet tested the RGBtoHD since i've no cable for it, but it seemed strange to me ...
by aotta
Wed Jul 22, 2020 6:47 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Back to the C64 today and tried out the new C0pperdragon firmware and the Beta3 release. Once I'd read Ian's documentation, the new palette was there without the need for any programming this time :) Good result! i've just installed my C0pperdragon and flashed new 2.7 firwmare (release, not beta2) ...
by aotta
Wed Jul 22, 2020 8:31 am
Forum: 8-bit acorn hardware
Topic: Computer Concept PALPROM redesign.
Replies: 6
Views: 965

Re: Computer Concept PALPROM redesign.

Hi Ken,
does your pcb use the same scheme (switch apart) of the one Hoglet published on github (github.com/hoglet67/palprom)?
I have a couple of that pcbs, and if you could share the gal jed, i'd like to make some test.
Thanks in advance!
by aotta
Mon Jul 20, 2020 6:17 pm
Forum: 8-bit acorn hardware
Topic: Watford Electronics PALPROM Redesign
Replies: 13
Views: 1358

Re: Watford Electronics PALPROM Redesign

was the jed file tested? i used your files for Quest paint and it worked fine, but the wapping editor version stop my Master from booting. I don't know if i missed something or the Wapping Editor version is still in progress... It hasn't been tested so it will need to be looked at when I have the t...
by aotta
Sat Jul 18, 2020 6:19 pm
Forum: 8-bit acorn hardware
Topic: Watford Electronics PALPROM Redesign
Replies: 13
Views: 1358

Re: Watford Electronics PALPROM Redesign

I've added a PLD file for Wapping Editor, currently untested: https://github.com/hoglet67/palprom/tree/master/pal/wapping_editor It will need to be updated once Ian confirms the original PAL pinout. Dave was the jed file tested? i used your files for Quest paint and it worked fine, but the wapping ...
by aotta
Mon Jul 13, 2020 8:15 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Just ordered a C0pperdragon! Today I installed the lumafix64 to improve my C64 video output, but hdmi is a different thing!

Great strike Ian! And you didn't mention new sw works fine with Apple IIc too!
by aotta
Wed Jul 08, 2020 10:23 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

In fact I missed it, thank you for the link and the amazing interview!
by aotta
Sun Jul 05, 2020 4:33 pm
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Great work IanB! But the cpld update works with the old analog board (with bottom ic added) too? Yes it works with the old analog board I've a Max9144 left from one of your old pcb version, it seems having same pinout and characteristic of Max9108, do you think i can use it for adding the IC7 to my...
by aotta
Sun Jul 05, 2020 11:10 am
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

Great work IanB! But the cpld update works with the old analog board (with bottom ic added) too? Else if, i'd like buy one of your new jlc board (hoping it will cost less than the ones I bought from pcbway! :wink: ) And, new sw versions works with other TI graphics video chips too (I.e. Msx, sega sc...
by aotta
Sat Jun 13, 2020 12:28 am
Forum: 8-bit acorn hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 1223
Views: 92400

Re: RGB to HDMI using a Pi Zero and a small CPLD

IanB wrote:
Sat Jun 13, 2020 12:00 am
BTW I've added a new page to the wiki with cabling details for all supported machines:
https://github.com/hoglet67/RGBtoHDMI/wiki/Cables
That's very useful, thank you!
by aotta
Sun Jun 07, 2020 5:43 pm
Forum: 8-bit acorn hardware
Topic: Beeb micro doesn't reset at boot
Replies: 8
Views: 439

Re: Beeb micro doesn't reset at boot

Nothing to do: it seems i can't charge pin 2 nor pin 6 and 7 to voltage greater than 1.6v.. so N555 pin 3 go high and stay so, or sometime floats but with no apparent reasong. I get some decent pulse only rare times, at cold start. I changed everything about timer circuit, except the C6. I have 5v a...

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