assigning a variable to port

mojalefa1 — Wed, 31 Jan 2007 04:32:30 GMT

how do you assign a switch to port, because I wrote the following code line

bit switch = P1^3 which is supposed to assign a variable switch to bit 3 of port1 but it gives me an error message on this line when I try to compile

Re: assigning a variable to port

CrasyCat — Wed, 31 Jan 2007 18:45:42 GMT

Hello

- Which CPU are you targeting (HC08, HC12, Coldfire, ..)
- Which version of CodeWarrior are you using?
To retrieve that info:
    - Start CodeWarrior
    - Select Help -> About Freescale CodeWarrior
    - Click on "Install Products"
    - CodeWarrior version used is displayed on top in the Installed Products dialog.

In any case ANSI standard does not define P1^3 as valid notation to access bit number 3 in a variable / register).

Please refer to your favorite ANSI C programming manual and look at how bitfields are managed.

CrasyCat

topic assigning a variable to port in Classic/Legacy CodeWarrior

assigning a variable to port

Re: assigning a variable to port