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

Mike:

Thanks for the reply.  That's definitely more efficient than my original solution which was:  

first sx chip:
if x=..., then high pin 1 
else if x = ..., then high pin 2
else if x = ..., then high pin 3
else if x = ..., then high pin 4
else if x = ..., then high pin 5
else if x = ..., then high pin 6

I had pins 1-6 on the first sx chip connected respectively to pins 1-6 on the second sx chip.  So the second sx chip was scanning all six pins looking for the high.  I wasn't using a 330-ohm resister between them though.  It seemed that after my code triggered one of the pins 1-6 high, when the pin was set back to low, it occasionally remained high.  I solved this by connecting a 1-Mohm resister between the two chips and ground to instantly discharge any remaining charge between the two.  Have you experienced this before?  Is that what the 330-ohm resistor takes care of?

Mike

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