I forgot (Again sorry) what you was using before, think it was the "ST" and STF remake ? So STFM would be good as its what I tried it out on.
Project: HDMI/DVI out for STFM
Re: Project: HDMI/DVI out for STFM
I forgot (Again sorry) what you was using before, think it was the "ST" and STF remake ? So STFM would be good as its what I tried it out on.
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.
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.
Re: Project: HDMI/DVI out for STFM
Re: Project: HDMI/DVI out for STFM
The plot thickens - Finally got the new (well new for me) STFM and it was functioning correctly.
Fortunately the shifter was already socketed which saved some time. I popped in the HDMI / DVI board and booted.
It did not reset. Have had it running GEMBench for over 30 minutes and still has not reset.
Just to check I put it back in the 520 ST and it starts resetting again.
One thing though is that I am getting a shimmering on the display on the STFM - will look into that next as well.
Re: Project: HDMI/DVI out for STFM
Thats the issue I had...
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.
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.
Re: Project: HDMI/DVI out for STFM
At least we are consistent
So interestingly from my testing I see the following traits
ST Model | Revision | Resetting | Shimmering | Comments |
520 STM | C070243 REV. E | Yes | No | Rock solid display can be seen if you can get it past resetting and playing a game |
520 STFM | C070789-001 REV. C | No | Yes | Shimmering even present playing a game |
STF Remake | C070789-001 REV. F | Yes | No | Revision is from the donor STFM that gave the remake most of its parts. Seems to exhibit same behaviour as 520ST |
Re: Project: HDMI/DVI out for STFM
Very odd..
Add this cap and I bet you be working fine...
https://www.exxosforum.co.uk/forum/viewt ... 270#p14777
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.
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.
Re: Project: HDMI/DVI out for STFM
Thanks for finding this out Icky! Amazing work!
Re: Project: HDMI/DVI out for STFM
Out of interest what value did you use?exxos wrote: ↑Fri Jan 04, 2019 9:38 pmVery odd..
Add this cap and I bet you be working fine...
https://www.exxosforum.co.uk/forum/viewt ... 270#p14777
Re: Project: HDMI/DVI out for STFM
10nF actually made the board not work - black screen.Icky wrote: ↑Sat Jan 05, 2019 6:46 pmOut of interest what value did you use?exxos wrote: ↑Fri Jan 04, 2019 9:38 pm
Very odd..
Add this cap and I bet you be working fine...
https://www.exxosforum.co.uk/forum/viewt ... 270#p14777
47pF works fine.
Screen is now stable on STFM.
EDIT: Just tried the HDMI board back in the STF Remake and 520ST with the 47pF cap in place and its even more temperamental. Some times its just a blank screen like when I used the 10nF when in the STFM and not very often it might try to boot and of course reset. On reset it mostly goes back to blank. I guess the 16MHz line is not so happy in these two machines with the cap on it.
Re: Project: HDMI/DVI out for STFM
Anything over about 390pF will squash the signal to much. Its not a good fix, but I still suspect its a clocking issue.Icky wrote: ↑Sat Jan 05, 2019 8:06 pm 10nF actually made the board not work - black screen.
47pF works fine.
Screen is now stable on STFM.
EDIT: Just tried the HDMI board back in the STF Remake and 520ST with the 47pF cap in place and its even more temperamental. Some times its just a blank screen like when I used the 10nF when in the STFM and not very often it might try to boot and of course reset. On reset it mostly goes back to blank. I guess the 16MHz line is not so happy in these two machines with the cap on it.
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.
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.