MQX Lite LED task not work

[yogesh8418]

Hi ,

I am using FRDM-KL25Z and I have successfully Written LED blink program  using code warrior. I am also able to run all the sample program from freescale start up kit.

Now I am writing A MQX Lite program to blink LED's using MQX tasks.

I made three tasks One for Initialising and 2 other for blinkin the LEDs on the board using task.

The task declaration in task_template_list.c is below

#define TASK_TEMPLATE_LIST_END         {0, 0, 0, 0, 0, 0, 0}

/* MQX task template list */

const TASK_TEMPLATE_STRUCT MQX_template_list[] =

{

  /* Task: InitTask */

  {

  /* Task number                      */  INITTASK_TASK,

  /* Entry point                      */  (TASK_FPTR)InitTask,

  /* Stack size                       */  INITTASK_TASK_STACK_SIZE,

  /* Task priority                    */  8U,

  /* Task name                        */  "inittask",

  /* Task attributes                  */  (MQX_AUTO_START_TASK),

  /* Task parameter                   */  (uint32_t)(0)

  },

  /* Task: LEDTask */

  {

  /* Task number                      */  LEDTASK_TASK,

  /* Entry point                      */  (TASK_FPTR)LEDTask,

  /* Stack size                       */  LEDTASK_TASK_STACK_SIZE,

  /* Task priority                    */  10U,

  /* Task name                        */  "ledtask",

  /* Task attributes                  */  (0),

  /* Task parameter                   */  (uint32_t)(0)

  },

  /* Task: GR_LED_ON */

  {

  /* Task number                      */  GR_LED_ON_TASK,

  /* Entry point                      */  (TASK_FPTR)GR_LED_ON,

  /* Stack size                       */  GR_LED_ON_TASK_STACK_SIZE,

  /* Task priority                    */  9U,

  /* Task name                        */  "gr_led_on",

  /* Task attributes                  */  (0),

  /* Task parameter                   */  (uint32_t)(0)

  },

  TASK_TEMPLATE_LIST_END

};

Now in the mqx_tasks.c I have written a code like below

/* ###################################################################

**     Filename    : mqx_tasks.c

**     Project     : ProcessorExpert

**     Processor   : MKL25Z128VLK4

**     Component   : Events

**     Version     : Driver 01.00

**     Compiler    : GNU C Compiler

**     Date/Time   : 2013-05-27, 17:44, # CodeGen: 0

**     Abstract    :

**         This is user's event module.

**         Put your event handler code here.

**     Settings    :

**     Contents    :

**         InitTask - void InitTask(uint32_t task_init_data);

**

** ###################################################################*/

/*!

** @file mqx_tasks.c

** @version 01.00

** @brief

**         This is user's event module.

**         Put your event handler code here.

*/        

/*!

**  @addtogroup mqx_tasks_module mqx_tasks module documentation

**  @{

*/        

/* MODULE mqx_tasks */

#include "Cpu.h"

#include "Events.h"

#include "mqx_tasks.h"

#ifdef __cplusplus

extern "C" {

#endif

/* User includes (#include below this line is not maintained by Processor Expert) */

#define RED_LED_LOC (1<<18)

#define GREEN_LED_LOC (1<<19)

#define BLUE_LED_LOC (1<<1)

#define RED_LED_OFF  GPIOB_PSOR = RED_LED_LOC

#define RED_LED_ON   GPIOB_PCOR = RED_LED_LOC

void Delay(int Ticks)

{

  int i;

  for(i=0;i<Ticks;i++)

  {

  }

}

/*

** ===================================================================

**     Event       :  InitTask (module mqx_tasks)

**

**     Component   :  Task1 [MQXLite_task]

**     Description :

**         MQX task routine. The routine is generated into mqx_tasks.c

**         file.

**     Parameters  :

**         NAME            - DESCRIPTION

**         task_init_data  -

**     Returns     : Nothing

** ===================================================================

*/

void InitTask(uint32_t task_init_data)

{

  //First order of business is to enable the Clocks to the ports!

  SIM_SCGC5 |= SIM_SCGC5_PORTB_MASK | SIM_SCGC5_PORTD_MASK;

  //Now,  setup the port mux for GPIO! See Page 163 and 183 of KL25 Sub-Family Reference Manual, Rev. 3, September 2012

  PORTB_PCR18 = PORT_PCR_MUX(1) | PORT_PCR_DSE_MASK;

  PORTB_PCR19 = PORT_PCR_MUX(1) | PORT_PCR_DSE_MASK;

  PORTD_PCR1 = PORT_PCR_MUX(1) | PORT_PCR_DSE_MASK;

  //Set the GPIO to outputs in the data direction register

  //See Page 778 of KL25 Sub-Family Reference Manual, Rev. 3, September 2012

  GPIOB_PDDR |=  RED_LED_LOC | GREEN_LED_LOC;

  GPIOD_PDDR |=  BLUE_LED_LOC;

  RED_LED_OFF;

  /* _task_id task_id;

  task_id=_task_create_at(0, LEDTASK_TASK, 0, LEDTask_task_stack, LEDTASK_TASK_STACK_SIZE);

  if(task_id=MQX_NULL_TASK_ID){

  printf("\n can not create led task");

  }else{

  printf("\n LED task created");

  }

  task_id=_task_create_at(0, GR_LED_ON_TASK, 0, GR_LED_ON_task_stack, GR_LED_ON_TASK_STACK_SIZE);

  if(task_id=MQX_NULL_TASK_ID){

  printf("\n can not create led task");

  }else{

  printf("\n LED task created");

  }*/

  _task_create_at(0, GR_LED_ON_TASK, 0, GR_LED_ON_task_stack, GR_LED_ON_TASK_STACK_SIZE);

  _task_create_at(0, LEDTASK_TASK, 0, LEDTask_task_stack, LEDTASK_TASK_STACK_SIZE);

}

/*

** ===================================================================

**     Event       :  LEDTask (module mqx_tasks)

**

**     Component   :  Task2 [MQXLite_task]

**     Description :

**         MQX task routine. The routine is generated into mqx_tasks.c

**         file.

**     Parameters  :

**         NAME            - DESCRIPTION

**         task_init_data  -

**     Returns     : Nothing

** ===================================================================

*/

void LEDTask(uint32_t task_init_data)

{

  int value=0;

  while(TRUE)

  {

  //The dedicated GPIO Set and clear registers make bit banging easier.  Just write to the port what bits

  //you want set or cleared.   The or-ing / not-anding  is done in *hardware*

  //see pages 775 - 778  of KL25 Sub-Family Reference Manual, Rev. 3, September 2012

  // RED_LED_OFF;

  // Delay(1000000);

  GPIOB_PSOR = GREEN_LED_LOC;

  Delay(1000000);

  GPIOD_PSOR = BLUE_LED_LOC;

  Delay(1000000);

  // RED_LED_ON;

  // Delay(1000000);

  GPIOB_PCOR = GREEN_LED_LOC;

  Delay(1000000);

  GPIOD_PCOR = BLUE_LED_LOC;

  Delay(1000000);

  value=value^1;

  }

}

/*

** ===================================================================

**     Event       :  GR_LED_ON (module mqx_tasks)

**

**     Component   :  Task3 [MQXLite_task]

**     Description :

**         MQX task routine. The routine is generated into mqx_tasks.c

**         file.

**     Parameters  :

**         NAME            - DESCRIPTION

**         task_init_data  -

**     Returns     : Nothing

** ===================================================================

*/

void GR_LED_ON(uint32_t task_init_data)

{

  int value=0;

  while(TRUE)

  {

  //The dedicated GPIO Set and clear registers make bit banging easier.  Just write to the port what bits

  //you want set or cleared.   The or-ing / not-anding  is done in *hardware*

  //see pages 775 - 778  of KL25 Sub-Family Reference Manual, Rev. 3, September 2012

  /* GPIOB_PSOR = GREEN_LED_LOC;

  Delay(1000000);

  GPIOD_PSOR = BLUE_LED_LOC;

  Delay(1000000);*/

  RED_LED_ON;

  Delay(1000000);

  /* GPIOB_PCOR = GREEN_LED_LOC;

  Delay(1000000);

  GPIOD_PCOR = BLUE_LED_LOC;

  Delay(1000000);*/

  RED_LED_OFF;

     Delay(1000000);

  value=value^1;

  }

}

/* END mqx_tasks */

#ifdef __cplusplus

}  /* extern "C" */

#endif

/*!

** @}

*/

/*

** ###################################################################

**

**     This file was created by Processor Expert 10.2 [05.06]

**     for the Freescale Kinetis series of microcontrollers.

**

** ###################################################################

*/

But when I debug the program I only blinks the LED of the higher priority and the other task is not working .....

Can anyone suggest me what mistake I am doing .

Thanks

I have also attached my code warrior project..

Original Attachment has been moved to: Freescale_MQL_test1.rar.zip

[Martin_ · Accepted solution]

instead of Delay(), use the MQX Lite blocking function _time_delay_ticks();

[yogesh8418]

Hi Martin,

If followed your instructions and Now The program works.

Thank you very much for replying.

Regards

Yogesh