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 :)

Icky - Progress

Where Alpha builders can post pics and progress etc
Post Reply
User avatar
exxos
Site Admin
Site Admin
Posts: 28771
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:
Contact exxos

Re: Icky - Progress

Post by exxos »

ahhhh we might have a suspect...

ew.jpg
ew.jpg (37.72 KiB) Viewed 4515 times


What its looking like is I wired RW from the CPU to the RAM, when it should have been WE from the MMU (which isn't connected to anything)
Top
User avatar
Icky
Site Admin
Site Admin
Posts: 4399
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: Icky - Progress

Post by Icky »

exxos wrote: Tue Sep 25, 2018 2:01 pm ahhhh we might have a suspect...

What its looking like is I wired RW from the CPU to the RAM, when it should have been WE from the MMU (which isn't connected to anything)
Lets hope this is the one.

I'll give it a try tonight.
Top
User avatar
exxos
Site Admin
Site Admin
Posts: 28771
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:
Contact exxos

Re: Icky - Progress

Post by exxos »

Icky wrote: Tue Sep 25, 2018 3:57 pm Lets hope this is the one.
Would certainly explain the RAM corruption...

I really hope this kicks things into gear, not sure my sanity can take another day looking at the schematics. :crazy: :crazy: :crazy: :pullhair: :pullhair:
Top
User avatar
PhilC
Moderator
Moderator
Posts: 7540
Joined: Fri Mar 23, 2018 8:22 pm

Re: Icky - Progress

Post by PhilC »

Well done.

At least you are able to find it. I've got no hope with this number dyslexia (fact)

Took ages just to test the data and address lines etc.
If it ain't broke, test it to Destruction.
Top
User avatar
Icky
Site Admin
Site Admin
Posts: 4399
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: Icky - Progress

Post by Icky »

And I danced, prayed and all other rituals to make the stars align and they did.....

Well done Exxos for spotting this one.

Top
User avatar
exxos
Site Admin
Site Admin
Posts: 28771
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:
Contact exxos

Re: Icky - Progress

Post by exxos »

Icky wrote: Tue Sep 25, 2018 8:42 pm And I danced, prayed and all other rituals to make the stars align and they did.....
Well done Exxos for spotting this one.
:bravo:
Top
User avatar
Icky
Site Admin
Site Admin
Posts: 4399
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: Icky - Progress

Post by Icky »

exxos wrote: Tue Sep 25, 2018 8:55 pm :bravo:
So it’s running but keyboard, mouse, sound & floppy not working.

Serial is working though.
Top
User avatar
exxos
Site Admin
Site Admin
Posts: 28771
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:
Contact exxos

Re: Icky - Progress

Post by exxos »

Icky wrote: Tue Sep 25, 2018 8:57 pm So it’s running but keyboard, mouse, sound & floppy not working.

Serial is working though.
Does the atari cart give any clues ? you should be able to control that via serial..

If the keyboard is unplugged, do you get the constant clicking sounds ?
Top
User avatar
exxos
Site Admin
Site Admin
Posts: 28771
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:
Contact exxos

Re: Icky - Progress

Post by exxos »

I've found a typo in the MFP circuit... Will post shortly...
Top
User avatar
Icky
Site Admin
Site Admin
Posts: 4399
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: Icky - Progress

Post by Icky »

exxos wrote: Tue Sep 25, 2018 9:03 pm I've found a typo in the MFP circuit... Will post shortly...
Well that fix made my floppy drive start working - need to check it out with some tests.

Desktop now shows Drives and Trash.

Still no a sound or keyboard

EDIT: Image
IMG_3105.png
IMG_3105.png (550.02 KiB) Viewed 4395 times
Top
Post Reply

Return to “ALPHA USER BUILDS”