I am trying to read a switch in an interrupt and toggle LED, but they have to be on MQX environment.
I attached code below and i know the IRQ handler couldnt be used in that way, but what is the right way? Can somebody help? I couldnt find it on MQX document.
/*HEADER**********************************************************************
*
* Copyright 2008 Freescale Semiconductor, Inc.
* Copyright 1989-2008 ARC International
*
* This software is owned or controlled by Freescale Semiconductor.
* Use of this software is governed by the Freescale MQX RTOS License
* distributed with this Material.
* See the MQX_RTOS_LICENSE file distributed for more details.
*
* Brief License Summary:
* This software is provided in source form for you to use free of charge,
* but it is not open source software. You are allowed to use this software
* but you cannot redistribute it or derivative works of it in source form.
* The software may be used only in connection with a product containing
* a Freescale microprocessor, microcontroller, or digital signal processor.
* See license agreement file for full license terms including other
* restrictions.
*****************************************************************************
*
* Comments:
*
* This file contains the source for the hello2 example program.
*
*
*END************************************************************************/
#include <stdio.h>
#include <mqx.h>
#include <bsp.h>
#include <event.h>
#include "fsl_gpio_irq.c"
/* Task IDs */
#define MAIN_TASK 5
extern void main_task(uint32_t);
const TASK_TEMPLATE_STRUCT MQX_template_list[] =
{
/* Task Index, Function, Stack, Priority, Name, Attributes, Param, Time Slice */
{ MAIN_TASK, main_task, 700, 9, "main", MQX_AUTO_START_TASK, 0, 0 },
// { GREEN_LED_TASK, green_led_task, 700, 11, "green_led", 0, 0, 6 },
{ 0 }
};
LWEVENT_STRUCT lwevent;
/*TASK*-----------------------------------------------------
*
* Task Name : world_task
* Comments :
* This task creates hello_task and then prints " World ".
*
*END*-----------------------------------------------------*/
void main_task
(
uint32_t initial_data
)
{
_task_id routine_task_id;
printf("Main starts");
GPIO_DRV_SetPinDir(switchPins[0].pinName, kGpioDigitalInput);
switchPins[0].config.interrupt = kPortIntFallingEdge;
_int_install_unexpected_isr();
if(_lwevent_create(&lwevent,0) != MQX_OK)
{
printf("Create event failed!");
_task_block();
}
//Create isr task
routine_task_id = _task_create(0, ROUTINE_TASK, 0);
if(routine_task_id == MQX_NULL_TASK_ID)
{
printf("Cannot create task!");
_task_block();
}
while (TRUE) {
if (_lwevent_wait_ticks(&lwevent,1,TRUE,0) != MQX_OK) {
printf("\nEvent Wait failed");
_task_block();
}
if (_lwevent_clear(&lwevent,0x01) != MQX_OK) {
printf("\nEvent Clear failed");
_task_block();
}
printf(" Tick \n");
}
_task_block();
}
void PORTA_IRQHandler(void)
{
/* Clear interrupt flag.*/
GPIO_DRV_ClearInterrupt(kGpioSW1);
GPIO_DRV_ToggleOutput(kGpioLED1);
}
