Search found 723 matches
- Tue Sep 18, 2018 7:14 pm
- Forum: HARDWARE DISCUSSIONS
- Topic: TOS startup sequence.
- Replies: 9
- Views: 1532
Re: TOS startup sequence.
Alright, here's a cleaned up (TOS 3.x/4.x/STBOOK stuff etc removed - I hope I got the sections right) startup.S from the TOS source code package: _main: /* disable the interrupts */ /* this is useless on cold boot, */ /* but it matters for software reset */ move #$2700,sr reset /* reset all hardware...
- Tue Sep 18, 2018 6:35 pm
- Forum: ALPHA DEVELOPMENT INFO
- Topic: ALPHA MODIFICATIONS
- Replies: 85
- Views: 55851
- Tue Sep 18, 2018 6:29 pm
- Forum: ALPHA DEVELOPMENT INFO
- Topic: ALPHA MODIFICATIONS
- Replies: 85
- Views: 55851
- Tue Sep 18, 2018 5:19 pm
- Forum: ALPHA USER BUILDS
- Topic: Forgottenmyname - Progress
- Replies: 213
- Views: 92263
Re: Forgottenmyname - Progress
Measure them at the monitor port first But yeah, if they're ok there then you should have a stable image and maybe csync for some reason is off.Forgottenmyname wrote: ↑Tue Sep 18, 2018 5:11 pm I might make a new cable with hsync and hsync. Would everything else be the same minus the comp sync obviously
- Tue Sep 18, 2018 4:05 pm
- Forum: ALPHA USER BUILDS
- Topic: Forgottenmyname - Progress
- Replies: 213
- Views: 92263
Re: Forgottenmyname - Progress
As of today I still get the rolling screen after applying the sync mod on U51. The Glue is still sending out 15khz on 37 and 60hz on 38. What do you have on the monitor port then? If HSYNC and VSYNC are steady at 15kHz and 60Hz you should not have a rolling screen ... unless your TV cannot handle 6...
- Tue Sep 18, 2018 2:19 pm
- Forum: HARDWARE DISCUSSIONS
- Topic: TOS startup sequence.
- Replies: 9
- Views: 1532
Re: TOS startup sequence.
Yeah I had that thought yesterday when looking through it, just need to manually remove all ifdef:ed code only valid for TT/Falcon.
- Tue Sep 18, 2018 12:30 pm
- Forum: ALPHA DEVELOPMENT INFO
- Topic: PCB Build - Progress - Post your Pics here :-)
- Replies: 135
- Views: 64859
Re: PCB Build - Progress - Post your Pics here :-)
Alright! We're done. That's the most common ST screen anyway
- Mon Sep 17, 2018 10:33 pm
- Forum: HARDWARE DISCUSSIONS
- Topic: TOS startup sequence.
- Replies: 9
- Views: 1532
Re: TOS startup sequence.
That's pretty much what needs to be known.
startup.S in the re-created TOS 2.06/3.06 source code package is where this can be read in assembly code.
startup.S in the re-created TOS 2.06/3.06 source code package is where this can be read in assembly code.
- Mon Sep 17, 2018 9:39 pm
- Forum: ALPHA DEVELOPMENT INFO
- Topic: PCB Build - Progress - Post your Pics here :-)
- Replies: 135
- Views: 64859
- Mon Sep 17, 2018 7:28 pm
- Forum: ALPHA DEVELOPMENT INFO
- Topic: PCB Build - Progress - Post your Pics here :-)
- Replies: 135
- Views: 64859
Re: PCB Build - Progress - Post your Pics here :-)
Assuming you have a PAL TOS, that means TOS didn't execute and/or the machine is being kept in RESET. One of the first things it does is to set 50Hz.
It does mean GLUE is working as it should