Icky's H4 Mongrel edition build x 2

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PaulJ
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Re: Icky's H4 Mongrel edition build x 2

Post by PaulJ »

Icky, question for you or @exxos . I have the clock chip... does some version of TOS reconize it and use its time? If so I'll give it a try. Thanks Paul.
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exxos
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Re: Icky's H4 Mongrel edition build x 2

Post by exxos »

Don't think so.. You need software to use it.
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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Icky
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Re: Icky's H4 Mongrel edition build x 2

Post by Icky »

@PaulJ - I have tested it out and it works. Just use this software https://www.exxosforum.co.uk/forum/viewt ... fmc#p19107
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Re: Icky's H4 Mongrel edition build x 2

Post by PaulJ »

Thanks @Icky . :)
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Icky
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Re: Icky's H4 Mongrel edition build x 2

Post by Icky »

Going to swap the 75R on the RGB over to 100R to see if that makes a difference in the video. Need to do the RS232 patch and then also look at why UltraSATAN is not working.
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Re: Icky's H4 Mongrel edition build x 2

Post by Icky »

So its not the buffer as I just jumped over it for the ACSI lines and the UltraSATAN is still not recognised. Looking deeper now to see if there is something wrong pin or track wise.
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Re: Icky's H4 Mongrel edition build x 2

Post by exxos »

Icky wrote: Sat Dec 07, 2019 11:32 am So its not the buffer as I just jumped over it for the ACSI lines and the UltraSATAN is still not recognised. Looking deeper now to see if there is something wrong pin or track wise.
Did you jumper IC5 & IC6 ? I keep checking the thing and can't see anything wrong anywhere.. will keep looking.
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.
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Icky
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Re: Icky's H4 Mongrel edition build x 2

Post by Icky »

@exxos - Only jumpered the ACSI buffer as that is no different than the ALPHA with the buffer board. Will try both later though.

I have been through the schematic and board layouts on the ALPHA and H4 and cant see anything different other than the buffers, HDRQ and DRQ going through an LS06 now but there is a pull up. Lastly the HDINT is a NOT on the ALPHA but a NAND wired as a NOT.

Thats the only differences I can see but shouldn't cause this to not work.
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Re: Icky's H4 Mongrel edition build x 2

Post by exxos »

@Icky I did rename FDCS to HDCS but traced it around and nothing different. I can't see anything wrong anywhere. Can only assume there's a bad solder job somewhere causing it all.
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.
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Icky
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Re: Icky's H4 Mongrel edition build x 2

Post by Icky »

exxos wrote: Sat Dec 07, 2019 8:27 pm @Icky I did rename FDCS to HDCS but traced it around and nothing different. I can't see anything wrong anywhere. Can only assume there's a bad solder job somewhere causing it all.
If there's a bad solder job to be found its probably mine. :)

Il'll go over the board again.
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