derkom's attempt

Topic for users to share their building progress.
User avatar
exxos
Site Admin
Site Admin
Posts: 23495
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: derkom's attempt

Post by exxos »

I would check the digital blue lines from shifter via buffer to DAC chip make sure your not losing a bit somewhere.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
derkom
Moderator
Moderator
Posts: 1208
Joined: Sun Jul 29, 2018 6:45 pm

Re: derkom's attempt

Post by derkom »

exxos wrote: Mon Jan 20, 2020 1:52 pm I would check the digital blue lines from shifter via buffer to DAC chip make sure your not losing a bit somewhere.
Yep, that is on this evening's agenda. :D
User avatar
derkom
Moderator
Moderator
Posts: 1208
Joined: Sun Jul 29, 2018 6:45 pm

Re: derkom's attempt

Post by derkom »

Okay, traced the blue signals around and discovered a bad solder on the B0 input on U5 was the culprit. I'm sure it was dodgy all along, and my Gotek experimentation flexed the board enough to break it.

rgb.jpg
rgb.jpg (37.92 KiB) Viewed 4067 times

Let there be RGB! :mrgreen:

Too late tonight to get back to the Gotek project. I'll get back on that tomorrow.

Thanks for the advice, @exxos!
User avatar
exxos
Site Admin
Site Admin
Posts: 23495
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: derkom's attempt

Post by exxos »

:cheer: :cheer: :cheer:
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
derkom
Moderator
Moderator
Posts: 1208
Joined: Sun Jul 29, 2018 6:45 pm

Re: derkom's attempt

Post by derkom »

Okay, after getting better from feeling blue, I've got back to playing with the Gotek (HxC firmware) OSD, and I have good results:

HxC-007.jpeg
HxC-007.jpeg (132.67 KiB) Viewed 4046 times

This will get tidier in time, I swear. My original hookup was just plain hookup wire, and I was getting all kinds of sync problems on the OSD. I replaced the csync wire with a piece of coaxial cable, soldered ground to the edge of the motherboard down where the core then goes under to fetch the csync, and temporarily connected to the Gotek's ground via that yellow grabber thingie. I'll do my permanent hookup with the third conductor in the connector I added to the Gotek.

HxC-008.jpeg
HxC-008.jpeg (56.5 KiB) Viewed 4046 times

Starting to load a game, HxC OSD showing image filename and current track number.

HxC-009.jpeg
HxC-009.jpeg (92.63 KiB) Viewed 4046 times

HxC file selector, for loading up the second disk.

All seems to be working fine now. I hope someday to make all this OSD work irrelevant with the eventual addition of @Smonson's HDMI board of course. :D
User avatar
derkom
Moderator
Moderator
Posts: 1208
Joined: Sun Jul 29, 2018 6:45 pm

Re: derkom's attempt

Post by derkom »

HxC-010.jpg
HxC-010.jpg (121.99 KiB) Viewed 4035 times

Slightly tidier wiring now. I still need a longer floppy cable though. :D

OSD is nice and solid now.
User avatar
exxos
Site Admin
Site Admin
Posts: 23495
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: derkom's attempt

Post by exxos »

:bravo:

I didn't even know gotek could have a OSD!
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
User avatar
JezC
Posts: 2081
Joined: Mon Aug 28, 2017 11:44 pm

Re: derkom's attempt

Post by JezC »

exxos wrote: Tue Jan 21, 2020 9:21 pm I didn't even know gotek could have a OSD!
Definitely worth following the FlashFloppy progress on FB.

Even more interesting (to me at least) is his Greaseweasle developments on a Bluepill board... especially for backing up / recovering floppy disc data.
User avatar
derkom
Moderator
Moderator
Posts: 1208
Joined: Sun Jul 29, 2018 6:45 pm

Re: derkom's attempt

Post by derkom »

exxos wrote: Tue Jan 21, 2020 9:21 pm I didn't even know gotek could have a OSD!
Only if you have the HxC firmware on it. Gotek + HxC has become my favourite floppy emulator for this reason. So much handier than having to look around the side of the computer or god forbid cut extra holes in the case! :twisted:

EDIT: Actually apparently the FlashFloppy firmware can do it too: https://github.com/keirf/FlashFloppy/wi ... isplay-osd
User avatar
exxos
Site Admin
Site Admin
Posts: 23495
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: derkom's attempt

Post by exxos »

I do have a HxC, but sadly had it years and only used it once!
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Post Reply

Return to “MONGREL H4 USER BUILDS”