Philips 8031 chip keeps reseting

My company is using Philips 8031 chip. The
new batch of chips we received, every one of
them keeps reseting itself when when
it come accross the PRINTF statement !!!
The c-code works fine with the old 8031 chip !!

Does anybody in this forum experience such
problem? The PRINTF statement we are using
is to send out a stream of characters to
the RS232 port. It is a SOFTWARE routine, we
are not used the built-in UART, could this
be the problem? however, I was very confused why the old chip works !!!

Thanks in advance, any helps or suggestions are veru
appreciated.

Parents
  • Hi,
    I had similar problem years ago. My code worked with old chip but kept reseting with new chips. Finally I found I need initialize some internal ram to zero,if I clear these location to zero, the new chip works. I think the problem is that new chip won't clear internal RAM by default when it powers on and old one does that.

Reply
  • Hi,
    I had similar problem years ago. My code worked with old chip but kept reseting with new chips. Finally I found I need initialize some internal ram to zero,if I clear these location to zero, the new chip works. I think the problem is that new chip won't clear internal RAM by default when it powers on and old one does that.

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