Hi to all engineers.

a few days ago I posted a question about unknown
interrupt  cause and I did not get any answer or recommendation.
I am not sure what that means.
now I am answering my own question.

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using picmaster 16J probe if your interrupt starts
during BCF or BSF  you will get unknown interrupt.
will make you  nuts.

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solution :

this is a BUG in picmaster probe 16J
disable global interrupt and re enable will work fine
if you still like to use emulator otherwise the pic
will work fine with out disabling and enabling global interrupt.

thanks Andre

you  welcome

below was my original question:

I am having serious unknown interrupt cause that happens
intermittently about every 3-5 minuets. I am using 16c62a
TMR0 overflow, timer1 overflow, CCP1 interrupts.
all other interrupts are disabled. this problem happens when
it is running. I suspect on my code but I do know where
the problem is. I even added other flags to determine witch
interrupt is causing it no changes at all.
I talked to microchip engineer about this problem
they said that picmaster J16 uses pic16c74a since 74a porta is analog
and default is set to "all analog enabled"
the recommendation was to make porta digital
on 62a when I am using picmaster.
since 62a doesn't have analog input when I do that mplab gives me
a warning about that. now I am not sure  if picmaster is
causing this problem or not  it is confusing me now.
any help will highly appreciated.

Andre