In SX Microcontrollers, SX/B Compiler and SX-Key Tool, DosManDan wrote:

According to the tech specs, once the interrupt occurs, it remains low until I start another SPI cycle.
 

PJ- I did put a wire in the breadboard to ground and the app detected that without a problem. 

 

JonnyMac- I hooked up the USB Oscilliscope and set it to detect a falling edge. It never triggered, would this be a valid test or will the interrupt occur faster then the scope can see it? I set it to trigger .5 V less than the 3V the line has on it.  HIGH = 3V, trigger set at 2.5V on the falling edge.

 

I can write a routine to check with an interrupt if you think that will work. 

 

I appreciate your help, I've already spent about 6 hrs on trying to solve this issue.

 

Thanks again,

Dan

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