topic Volatile issue in 8-bit Microcontrollers

Volatile issue

jberri — Thu, 07 Feb 2008 03:47:50 GMT

I am trying to use the following documentation AN2616 and follow an example. In the example they initialize the data direction register as such:

PTADD = 0; //initialize as input (Data Direction Register) */

when I compile this I get an error saying the following

Error : C1019: Incompatible type to previous declaration (found 'int ', expected 'PTAPESTR volatile ')

main.c line 9

what is the proper way of doing this or am I missing something.

Re: Volatile issue

CompilerGuru — Thu, 07 Feb 2008 07:25:58 GMT

Are you placing
>PTADD = 0;
inside of a function, inside of main?

Daniel

Re: Volatile issue

jberri — Thu, 07 Feb 2008 11:11:02 GMT

Daniel, you hit it on the dot..... I had the code placed outside the main loop. What I don't understand is, I thought it should have been outside the main. Maybe I am thinking C++

Anyway, thank you so much.