Send me an example of a screwed up eagle file. I have windows and mac here.exxos wrote: Thu Oct 22, 2020 3:58 pmYeah yeah, sent another DRC screw up that Eagle caused last night.. going to try to replicate it so @Icky can try the mac version...terriblefire wrote: Thu Oct 22, 2020 3:52 pm Next time you do a board send me it to DRC before you submit it
Can all registered uses please login, even just for a few minutes..
It helps build a picture where our "good traffic" is coming from..
Thanks :)
It helps build a picture where our "good traffic" is coming from..
Thanks :)
exxos's H5 A3 Build
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terriblefire
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Re: exxos's H5 A3 Build
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: exxos's H5 A3 Build
Few more bits done.. 3.3V regulator, RS232 IC, LS02, Reset IC, simm socket & DAC.
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Re: exxos's H5 A3 Build
Getting there 
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Re: exxos's H5 A3 Build
..and its dead 
, no boot, just very dark blue screen 
Probably wont have chance to debug until Thursday
, no boot, just very dark blue screen Probably wont have chance to debug until Thursday - IMG_5714.JPG (422.09 KiB) Viewed 3249 times
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stephen_usher
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Re: exxos's H5 A3 Build
It's not even Monday, so it can't be Blue Monday...
I wonder what a blue screen signifies.
I wonder what a blue screen signifies.
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
Re: exxos's H5 A3 Build
So far it looks like IC11 next to the SMT GLUE (ROM _CE) is in upside down 
EDIT:
Looks like my IC6 is faulty RESET & HALT inputs are both switching, but HALT is not. Its pulled up to 5V with 1K and is there. its not shorted to GND. But it is low all the time
Also I had to remove the 3.3V regulator as it was getting red hot.
EDIT:
Looks like my IC6 is faulty
RESET & HALT inputs are both switching, but HALT is not. Its pulled up to 5V with 1K and is there. its not shorted to GND. But it is low all the time Also I had to remove the 3.3V regulator as it was getting red hot.
Re: exxos's H5 A3 Build
No smoke? I remember the first Sparkalaphobia having the wrong footprint and the 3.3v and 5v were the wrong way round on the reg.exxos wrote: Tue Oct 27, 2020 2:17 pm Also I had to remove the 3.3V regulator as it was getting red hot.
Re: exxos's H5 A3 Build
I've not checked it, bigger fish to fryIcky wrote: Tue Oct 27, 2020 3:11 pm No smoke? I remember the first Sparkalaphobia having the wrong footprint and the 3.3v and 5v were the wrong way round on the reg.
Re: exxos's H5 A3 Build
I have lifted up the HALT pin, and replaced the LS11... I am seeing bus activity and ROM OE switching... but still nothing on the screen.. The keyboard light is not flashing either.
Re: exxos's H5 A3 Build
The diagnostic cartridge gives a consistent output of garbage every time though 
Diagrom outputs garbage as well...
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Diagrom outputs garbage as well...
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