Dear Sir/Madam,
Trip zone at 28335 is negative edge triggered. I wonder what is the logic level of triggering? Could some sudden glitches cause trip zone interrupt to occur? Thanks a lot.
Mert Sahin
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Dear Sir/Madam,
Trip zone at 28335 is negative edge triggered. I wonder what is the logic level of triggering? Could some sudden glitches cause trip zone interrupt to occur? Thanks a lot.
Mert Sahin
Mert,
any signal that crosses below VIL, as specified in the data sheet, could cause the trip-zone to be triggered. For the one-shot latching mechanism to latch the signal we require the signal remain active for 3 cycles.
Realistically extremely short pulses with be "gobbled" by the input buffer and not seen by the rest of the system, but this is not guaranteed.
Datasheet link:https://www.ti.com/lit/gpn/tms320f28335
Regards,
Cody