Yes, yellow is address and pink is AS. A1 is labeled if you mouse over the images. It's the 3rd one for some reason.
I changed to falling edge trigger, thanks.
There's nothing in the expansion connectors when I'm testing things.
I do have a desoldering station. It was just a bit clogged when removing the last chips which lead to a bit of damage...
Trust me, I've looked low and high for solder bridges. Given that it gave error 18 before and after all the work I've done on it, I think there's def something other than a solder bridge from my work (though I def could've made one that'll need fixing)
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I took some better pictures after my last post. All of the address lines that I'm looking at do go low and high at points when AS is low. I have not seen iffy looking address signals when AS is low. So I guess address lines are okay?
All pull up resistors I've tested have been good.
I couldn't find every pull up resistor that I wanted, so I measured resistance from pins to ground and 5v. They all got the proper 3.3k resistance to 5v.
However the resistance between ground and 5v was only like 350 ohms ....
BGACK is never low. The DMAC never asks to take control of the bus from what I can see. It never moves even on bootup.
"However, the ~0.4 V shifts on the A1 line could be indicative of a problem. It looks like the A1 line isn't reaching the low level correctly, but you might try a few more captures on A1 and A2 to see if you can see they are being driven to both the low and high levels when /AS is low." I assume you mean that first image I posted. I think that was A3. I can test them all again, but they were going high and low when AS was low.
And regarding printing it - yeah, I had to get a print shop to print it off on a giant sheet of paper for me. Helps a ton!