Steve M. Taylor wrote:
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... like all Port 2 will be low and all port 1 high, have you checked that ?

... looking for it with an oscilloscope, have you got one ?

Steve,

Thanks for your response, but in C, we can set any of the 8 pins using a single hex value:

P1 = 0x00 ; // All P1 Pins off
P1 = 0x08 ; // Pin P1.4 on
P1 = 0x41 ; // Pin P1.7 on and P1.0 on
P1 = 0xFF ; // All P1 Pins on

As for the oscilloscope, I don't have one at the house.. I may have to pick on up.. I knew I'd need one eventually :)