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GPIO simple output with kinetis kwikstik

Question asked by Alessandro Tordini on Dec 6, 2011
Latest reply on Dec 17, 2011 by Alessandro Tordini

Hi, I'm trying to write a simple program for make blinking a led linked on GPIO pin 6 of my Kwikstik (with the TWR-ELEV).


I'm working with Codewarrior 10.1 (with the lastest update patch) and MQX 3.7 + KwikStik Patch.


This the code I have wrote. The codewarrior compile without errors but it not work..


#include "main.h"

#include <io_gpio.h>
#include <io_gpio_kgpio.h>

#error This application requires BSPCFG_ENABLE_IO_SUBSYSTEM defined non-zero in user_config.h. Please recompile BSP with this option.

#error This application requires BSP_DEFAULT_IO_CHANNEL to be not NULL. Please set corresponding BSPCFG_ENABLE_TTYx to non-zero in user_config.h and recompile BSP with this option.

TASK_TEMPLATE_STRUCT MQX_template_list[] =
/*  Task number, Entry point, Stack, Pri, String, Auto? */
   {MAIN_TASK,   Main_task,   1500,  9,   "main", MQX_AUTO_START_TASK},
   {0,           0,           0,     0,   0,      0,                 }

GPIO_PIN_STRUCT pins1[] = {
* Task Name    : Main_task
* Comments     :
*    This task prints " Hello World "

void Main_task(uint_32 initial_data)
    MQX_FILE_PTR file1;

   file1 = fopen("gpio:write", (char_ptr) &pins1);

while (1) {

       _io_ioctl(file1, GPIO_IOCTL_WRITE_LOG1, NULL);
       _io_ioctl(file1, GPIO_IOCTL_WRITE_LOG0 NULL);

/* EOF */



I have already set to one GPIO in userconfig.h


Someone find errors in this code?