C program that makes PIC 16F877A wait until PORTD changes (HITECH HI-TIDE v3)

[crocklip]

Hi,

I am using a PIC for a project that Im working on at the moment. I need to program it (in C) to wait until PORTD changes, ie. when any bit in portD toggles.
Maybe an interrupt?

Thanks for the help

 

[Jack// ani]

simpe C question

It would be sensible if you mention your C compiler too....

 

[waseem]

Re: simpe C question

Hi!
Mention the compiler and also the microcontroller that u wish to use.
Regards.

 

[kishangk]

Re: simpe C question

for 8051->u use keil c cross compiler..

for motorola 68000->use tasking compiler.....

 

[sp002]

Re: simpe C question

U need to be polling for the portd bits , each iteration check for the change.
If there is no change then sleep few msecs.

 

[crocklip]

Re: simpe C question

The PIC is 16F877A and I'm using the HITECH HI-TIDE V.3 compiler
Thanks