Alright! We're done. That's the most common ST screen anyway
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PCB Build - Progress - Post your Pics here :-)
Re: PCB Build - Progress - Post your Pics here :-)
Re: PCB Build - Progress - Post your Pics here :-)
Thought whilst changing over SIMM I would post pics of the extended headers that allow the Exxos RAM card to fit.
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- IMG_3053.png (251.6 KiB) Viewed 5086 times
- IMG_3054.png (865.81 KiB) Viewed 5086 times
Re: PCB Build - Progress - Post your Pics here :-)
Ok I'll put it away now. Hurry up with the next revision then Exxos
If it ain't broke, test it to Destruction.
Re: PCB Build - Progress - Post your Pics here :-)
No don't put it away keep at it - we want to see the desktopForgottenmyname wrote: Tue Sep 18, 2018 12:51 pmOk I'll put it away now. Hurry up with the next revision then Exxos
What did you do to get it to the bomb stage?
Re: PCB Build - Progress - Post your Pics here :-)
Do both you guys have sync issues ? I've lost the plot whos doing what..
Re: PCB Build - Progress - Post your Pics here :-)
Yes, I still have sync issues on my CRT, i've got a rolling yellow screen (think my blue wire is stuffed)
I still have 60hz out of 38 on the glue as well as 15khz out of 37.
I've no longer got /AS cycling, its just low now. Have some pulses on R/W on power up and then after about 10 seconds that drops to 0 if i remember correctly.
Pulses on the MMu to the memory but nothing from the rom so far, so thats the problem in my case I think.
When I got it to bomb I was scoping around the rom.
I still have 60hz out of 38 on the glue as well as 15khz out of 37.
I've no longer got /AS cycling, its just low now. Have some pulses on R/W on power up and then after about 10 seconds that drops to 0 if i remember correctly.
Pulses on the MMu to the memory but nothing from the rom so far, so thats the problem in my case I think.
When I got it to bomb I was scoping around the rom.
If it ain't broke, test it to Destruction.
Re: PCB Build - Progress - Post your Pics here :-)
Do you think we should start an individual thread each?exxos wrote: Tue Sep 18, 2018 12:55 pm Do both you guys have sync issues ? I've lost the plot whos doing what..
If it ain't broke, test it to Destruction.
Re: PCB Build - Progress - Post your Pics here :-)
Yeah that might be a better idea, then start with what does and doesn't work etc, whats been done and not done...Forgottenmyname wrote: Tue Sep 18, 2018 1:04 pm Do you think we should start an individual thread each?
Re: PCB Build - Progress - Post your Pics here :-)
Agree - Forgottenmyname let me PM you with my details of my board and we can consolidate that new threadexxos wrote: Tue Sep 18, 2018 1:06 pmYeah that might be a better idea, then start with what does and doesn't work etc, whats been done and not done...Forgottenmyname wrote: Tue Sep 18, 2018 1:04 pm Do you think we should start an individual thread each?