exxos's Atari, Amiga & retro forum

@exxos at least its an easy fix and another thing spotted before you order the next batch.

Well bugger me, feking Eagle libs AGAIN :headbang: :headbang: :headbang: :cussing: :cussing: :cussing:


I hadn't even got past testing CPU, GLUE, MMU lines out yet. But thanks @stephen_usher probably wouldn't have got to that side of the board for a while as I am not at home tomorrow..

@exxos Looks like you're nearly there with it now!

Excellent progress!

:thumbup:

Icky wrote: 27 Oct 2020 21:05 @exxos It’s always the libs that catch us out. Just like the regulator pins swap on the Sparkalphobia v1

What I don't get is, The same fault is actually on the H4.. so why did that one work :stars: :stars:

exxos wrote: 27 Oct 2020 21:16

Icky wrote: 27 Oct 2020 21:05 @exxos It’s always the libs that catch us out. Just like the regulator pins swap on the Sparkalphobia v1

What I don't get is, The same fault is actually on the H4.. so why did that one work :stars: :stars:

The actual H4 board is wired correctly, but the schematic its wrong, so I need to work out what revision exactly I put into production and at what point it went tits-up..

exxos wrote: 27 Oct 2020 21:16

Icky wrote: 27 Oct 2020 21:05 @exxos It’s always the libs that catch us out. Just like the regulator pins swap on the Sparkalphobia v1

What I don't get is, The same fault is actually on the H4.. so why did that one work :stars: :stars:

Two mistakes cancelling each other out, maybe?

The schematic is clearly wrong, but the actual PCB is correct ... But even so, there must be some other fault with the SMT version of the lib, but it looked identical to the PLCC one...

stephen_usher wrote: 27 Oct 2020 21:27 Two mistakes cancelling each other out, maybe?

Yep, looks like there are 2 mistakes in the lib which cancel each other out :roll: At least with the PLCC52.. not looked at the SMT one yet.

EDIT:

The SMT one had the correct PCB footprint, but wrong schematic pinout, so D3,D4 ended up invented.

The PLCC one had both wrong PCB and schematic, so they ended up correct as D3,D4 were swapped twice..

I have fixed both parts and created a new lib, so hopefully thats the end of it now.

exxos wrote: 27 Oct 2020 21:46 I have fixed both parts and created a new lib, so hopefully thats the end of it now.

:dualthumbup:

Next up, why my floppy drive cant access the disk, just nothing happens when I try to open DRIVE A, well other than it spinning the drive and busy bee then nothing

:comp:


EDIT:

It seems to format a floppy, but refuses to read it :shrug: