topic Re: Hello world program for Kinetis in Kinetis Microcontrollers

Hello world program for Kinetis

FabianS — Wed, 08 Dec 2010 15:30:25 GMT

Hello,

I am trying to write a small hello world program for the Kinetis K60 but it's not working. It's just a pin I want to toggle.

[code]

#include <stdio.h>

#include "derivative.h" /* include peripheral declarations */

int main()
{
   //MCU_init();

   GPIOC_POER |= (1<<0);
   while(1)
   {
       printf("Hello World!\n");
       GPIOC_PTOR = (1<<0);
   }
   return 0;
}
[/code]

Using MCU_init or not makes no difference. The pin simply does nothing.

I also tryed to use a DAC but when I add the DAC0 settings in the "Target CPU" view the program crashes and jumps to PE_ISR(isrINT_NMI) when calling the MCU_init method.

PS: Why is here no extra forum for Kinetis?

Re: Hello world program for Kinetis

MikeRC — Tue, 14 Dec 2010 03:39:44 GMT

Try this for the main function:

int main()
{
//MCU_init();

SIM_SCGC5 = 0x800;

PORTC_PCR0 = 0x00000100;

    GPIOC_POER |= (1<<0);
   while(1)
   {
       printf("Hello World!\n");
       GPIOC_PTOR = (1<<0);
   }
   return 0;
}

The GPIO is a lot different for Kinetis than it used to be for Star 12's. The PortC clock needs to be enabled and the Pin Mux needs to be set to use the GPIO functionality.

-Mike

Re: Hello world program for Kinetis

anthony_huereca — Wed, 26 Jan 2011 06:19:48 GMT

You can also look at the GPIO example in the Kinetis Sample Code for more examples of blinking the LED's: http://www.freescale.com/webapp/sps/download/license.jsp?colCode=KINETIS512_SC