?? app.c
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/*
*********************************************************************************************************
* uC/OS-II
* The Real-Time Kernel
*
* (c) Copyright 1998-2004, Micrium, Weston, FL
* All Rights Reserved
*
*
* ARM Sample code
*
* File : APP.C
* By : Jean J. Labrosse
*********************************************************************************************************
*/
#include <includes.h>
/*
*********************************************************************************************************
* VARIABLES
*********************************************************************************************************
*/
OS_STK AppStartTaskStk0[APP_TASK_STK_SIZE];
OS_STK AppStartTaskStk1[APP_TASK_STK_SIZE];
OS_EVENT* LED_Sem;
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
*********************************************************************************************************
*/
static void AppStartTask0(void *p_arg);
static void AppStartTask1(void *p_arg);
/*
*********************************************************************************************************
* main()
*
* Description : This is the standard entry point for C code. It is assumed that your code will call
* main() once you have performed all necessary 68HC12 and C initialization.
* Arguments : none
*********************************************************************************************************
*/
void main (void)
{
INT8U err = 0;
OSInit(); /* Initialize "uC/OS-II, The Real-Time Kernel" */
OSTaskCreateExt(AppStartTask0,
(void *)0,
(OS_STK *)&AppStartTaskStk0[APP_TASK_STK_SIZE - 1],
APP_TASK_START_PRIO,
APP_TASK_START_PRIO,
(OS_STK *)&AppStartTaskStk0[0],
APP_TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
OSTaskCreateExt(AppStartTask1,
(void *)0,
(OS_STK *)&AppStartTaskStk1[APP_TASK_STK_SIZE - 1],
APP_TASK_START_PRI1,
APP_TASK_START_PRI1,
(OS_STK *)&AppStartTaskStk1[0],
APP_TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
#if OS_TASK_NAME_SIZE > 11
OSTaskNameSet(APP_TASK_START_PRIO, "Start Task", &err);
#endif
#if OS_TASK_NAME_SIZE > 14
OSTaskNameSet(OS_IDLE_PRIO, "uC/OS-II Idle", &err);
#endif
#if (OS_TASK_NAME_SIZE > 14) && (OS_TASK_STAT_EN > 0)
OSTaskNameSet(OS_STAT_PRIO, "uC/OS-II Stat", &err);
#endif
OSStart(); /* Start multitasking (i.e. give control to uC/OS-II) */
}
/*$PAGE*/
/*
*********************************************************************************************************
* STARTUP TASK
*
* Description : This is an example of a startup task. As mentioned in the book's text, you MUST
* initialize the ticker only once multitasking has started.
* Arguments : p_arg is the argument passed to 'AppStartTask()' by 'OSTaskCreate()'.
* Notes : 1) The first line of code is used to prevent a compiler warning because 'p_arg' is not
* used. The compiler should not generate any code for this statement.
* 2) Interrupts are enabled once the task start because the I-bit of the CCR register was
* set to 0 by 'OSTaskCreate()'.
*********************************************************************************************************
*/
static void AppStartTask0 (void *p_arg)
{
INT8U i = 0;
(void)p_arg;
BSP_Init(); /* Initialize BSP functions */
#if OS_TASK_STAT_EN > 0
OSStatInit(); /* Determine CPU capacity */
#endif
LED_Sem = OSSemCreate(1);
while (TRUE) { /* Task body, always written as an infinite loop. */
if( i < 5)
{
i++;
}
else
{
OSSemPost( LED_Sem );
i = 0;
}
LED_Off0(i);
OSTimeDlyHMSM(0, 0, 1, 0);
LED_On0(i);
OSTimeDlyHMSM(0, 0, 1, 0);
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* STARTUP TASK
*
* Description : This is an example of a startup task. As mentioned in the book's text, you MUST
* initialize the ticker only once multitasking has started.
* Arguments : p_arg is the argument passed to 'AppStartTask()' by 'OSTaskCreate()'.
* Notes : 1) The first line of code is used to prevent a compiler warning because 'p_arg' is not
* used. The compiler should not generate any code for this statement.
* 2) Interrupts are enabled once the task start because the I-bit of the CCR register was
* set to 0 by 'OSTaskCreate()'.
*********************************************************************************************************
*/
static void AppStartTask1 (void *p_arg)
{
INT8U i = 0;
(void)p_arg;
while (TRUE) { /* Task body, always written as an infinite loop. */
OSSemPend( LED_Sem, 1000, &i);
LED_On1(i);
OSTimeDlyHMSM(0, 0, 1, 0);
LED_Off1(i);
OSTimeDlyHMSM(0, 0, 1, 0);
}
}
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