I haven't found a response to my brownout issues yet using the LPC936. Maybe I won't. It doesn't seem as though this is a chip many people use anymore. We've used this for over 10 years on a working system, and I was trying to get a new brownout feature working.
I have a brownout codesnippet that works somewhat, but with some issues that aren't documented in the datasheet/user manual.
1. Does the brownout keep causing resets, if you do not reset BOF? I'm seeing this. It's like the WDT is resetting the chip after a very short time (like 1 second), but I don't have the WDT enabled.
2. Does the BOI bit cause an interrupt in addition to a reset? Even with BOI = 0 or 1, I'm seeing a complete software reset when the voltage gets down to about 2.6V. My interrupt isn't working, but I was wondering about the reset issue. The user manual seems to indicate that BOI = 1 should cause an interrupt instead of a reset. But, I'm not seeing that.
NXP hasn't responded, but again, maybe nobody knows the intricate details on the chip anymore.
Any help out there? Thanks.
Sutton