hi.
I have established communcication between a PIC and a Handphone. I realized that whenever an I/O pin (which I set HIGH as a RTS signal) is left floating (handphone gets disconnected in operation midway), the PIC will reset and my system goes back to trying to reinitiate communication again.
I find that this is actually very useful if manipulated well to detect the existence of connections or not so I just want to verify if what I am experiencing now has any theory to why it behaves so..
Anyone know why ??
thanks!
I have established communcication between a PIC and a Handphone. I realized that whenever an I/O pin (which I set HIGH as a RTS signal) is left floating (handphone gets disconnected in operation midway), the PIC will reset and my system goes back to trying to reinitiate communication again.
I find that this is actually very useful if manipulated well to detect the existence of connections or not so I just want to verify if what I am experiencing now has any theory to why it behaves so..
Anyone know why ??
thanks!