exxos's Atari, Amiga & retro forum

JezC wrote: 24 Mar 2023 21:51 Now, if that was shades of pink rather than purple, you might have @exxos claiming that for his own! ;)

:lolbig: :stars: :excited:

And we are booting properly. Along with all the changes the SIMM slot replacement brought this board to life. The purple colour video in the previous post was a combination of the DAC jumpers and my RGB cable setup.

Now to start tidying and placing components back on the board.

@Icky nice to see it up and running at last, although I did prefer the purple :D

Another H5 joins the land of the living :yay2: :dualthumbup:

Good-oh!

Everything is back in place and cleaned up. I have added in a few sockets and headers, plus I have several battery cell holders and a crystal for the RTC clock circuit so put them in. @stween you only need to find the RTC chip.

First patches in place with the inductors on the 3V3 <-> 5V translators replaced with 220K resistors is done. Now to do the rest such as the audio fixes.

Wonderfully good! I'm looking forward to getting my board through a full boot cycle for the first time :D

stween wrote: 01 Apr 2023 15:09 Wonderfully good! I'm looking forward to getting my board through a full boot cycle for the first time :D

Yes, when you get this running we need to see your favourite game demoed :)

Listing all the fixes going onto the board and status:

• COMPLETE - H5 C1 3.3v bus fix
• COMPLETE - H5 C1 YM AUDIO FIX
• COMPLETE - C1 AUDIO FIX - FLOPPY NOISE ISSUES
• COMPLETE - 32Mhz OSC fix.
• COMPLETE - H4 & H5 series BGACK pullup update fix

EDIT: All fixes complete just need to do some tests and then I can think about shipping this H5 back to @stween

Board has been on GEMBench loop for over 24 hours now and no glitches so I deem that as a working board. Just need to test out the audio patches work.