What is wrong with my TF536

[kulamario]

Welcome
I done already few TF536 but never have similar problems
Amiga sometimes boot sometimes not so I put this test firmware and this what I get in result

Anyone can tell me where looking problem please

20200730_165205.jpg

20200730_165132.jpg

20200730_164902.jpg

[terriblefire]

That one is very weird. Unless there are two issues.

Possible that the issue is data bus connection issue to the CPLD.
BUSEN line shorted low all the time might also do it.

But i cant explain why you arent getting an interrupt in the testint2... bad cpld?

[kulamario]

I just suspect cpld
but before taking it off I preferred to ask

[kulamario]

i soldered new one but have same problem
so must be something different

[kulamario]

I messed up a bit with this test
It turned out that I am not loading this adf
after changing the adf to the appropriate one, everything is on PASS
but which does not change the fact that the disk did not work as it should
what I found out, this amiga on testing firmware works perfect
a very strange thing

[kulamario]

problem sort card working perfect on normal firmware
problem was with memory
I soldered memory one more time and card start working on normal firmware