BitIO enable/disable pin

[avnergidron]

Hi,

I want  to use the processor expert BitIoLddin order to enable and  disable output and input pins.

I  read this tutorial: Tutorial: Bits and Pins with Kinetis and the FRDM-KL25Z Board | MCU on Eclipse

I am  currently able to turn the red led on and off using the BitIO component (which have the BitIOLdd).

My code is doing the following:

(1) Turn on  Red led. (Bit1_SetVal();)

(2) Turn off Red Led. (Bit1_ClrVal();)

The problem is that after (2) runs and turn off the led it turns on again  in the next line of code...

Thanks,

Avner

[BlackNight]

Could you share your code? I would put it into an endless loop with some waiting method (you can get the Wait component from SourceForge: McuOnEclipse Releases on SourceForge), like this:

for(;;) {

  RED_SetVal(RED_DeviceData);

   WAIT1_Waitms(100); /* wait 100 ms */

  RED_ClrVal(RED_DeviceData);

   WAIT1_Waitms(100); /* wait 100 ms */

} 


Erich

[avnergidron]

Hi Erich,

Sorry for the long delay in replying.

I tested what you suggested and this is working,  turning the led on  and off.

When I changed it to run only  five times, it acted the same, but at the end it left the led turned on.

This is how I define the BitIO:

and my main is:

Thanks,

Avner

[BlackNight · Accepted solution]

Hi Avner,

the LED is low active, so putting the pin LOW with ClrVal() will turn the LED on.

Check the schematics of your board :-).

Erich

[avnergidron]

Thanks