µTasker Forum

µTasker Forum => NXP^TM M522XX, KINETIS and i.MX RT => Topic started by: Marc VDH on March 06, 2010, 10:02:28 AM

Title: Getting control over port TC
Post by: Marc VDH on March 06, 2010, 10:02:28 AM

Hello Mark,

I would like to use port TC in my application, but this port is already being used by uTasker itself for the blinking LEDs.
Is there a simple, straightforward way to disable the uTasker use of this port, or do I have to go through the code to remove all uTasker use of that port myself?

Title: Re: Getting control over port TC
Post by: mark on March 06, 2010, 12:30:14 PM

Hi Marc

The demo project configures some ports and also blinks one output.

To remove these the following can be done:

1) In application.c comment out

        fnInitialisePorts();                                             // set up ports as required by the user

Without this the initialisation of the demo ports will not be performed.


2) In app_hw_m5223x.h remove the blink LED configuration and the blink activity

    #define INIT_WATCHDOG_LED()        _CONFIG_PORT_OUTPUT(TC, PORT_TC_BIT0)
    #define TOGGLE_WATCHDOG_LED()      _TOGGLE_PORT(TC, PORT_TC_BIT0)

This is done by using empty defines:
    #define INIT_WATCHDOG_LED()
    #define TOGGLE_WATCHDOG_LED()

This should leave all ports which are not used by peripherals free for use by the application.

Regards

Mark