Electronic – Micrium Rtos – OSTimeDly not working

keilrtos

I have initialized the Micrium Rtos and there is no error when I compile the project but there is a OSTimeDly function in my code that is not working.

I should notify that when I give the first argument of this function ( related to number of ticks to specify the time delay ) the value of 0 , my task is working well but giving any other value to this argument (500 in my code) , stops the program .
Do I need to activate something else to enable using delay functions ??

Here is my code :

#include <GPIO_LPC17xx.h>
#include <app_cfg.h>
#include <os.h>
static          OS_TCB      AppTaskStartTCB;
static          CPU_STK     AppTaskStartStk[1000];
static          void            AppTaskStart(void *p_arg);

void SysTick_Handler(void)
{
OS_CPU_SysTickHandler();
}
int main(void)
{
    OS_ERR err; 
    GPIO_SetDir(0,20,GPIO_DIR_OUTPUT);
    GPIO_PinWrite(0,20,1);
    OSInit(&err);
    if (err !=OS_ERR_NONE) {
        GPIO_PinWrite(0,20,0);
    }
    OSTaskCreate((OS_TCB        *)&AppTaskStartTCB,
                            (CPU_CHAR       *)"App Task Start",
                            (OS_TASK_PTR)AppTaskStart,
                            (void           *)0,
                            (OS_PRIO         )5,
                            (CPU_STK        *)&AppTaskStartStk[0],
                            (CPU_STK_SIZE)1000/10,
                            (CPU_STK_SIZE)1000,
                            (OS_MSG_QTY  )0,
                            (OS_TICK         )0,
                            (void             *)0,
                            (OS_OPT          )(OS_OPT_TASK_STK_CHK  |  OS_OPT_TASK_STK_CLR),
                            (OS_ERR         *)&err);

    if (err !=OS_ERR_NONE) {
        GPIO_PinWrite(0,20,0);
    }                       
    OSStart(&err);
    if(err !=OS_ERR_NONE){
        GPIO_PinWrite(0,20,0);
    }
}
static void AppTaskStart (void *p_arg)
{
    OS_ERR err;
    p_arg = p_arg;
    CPU_Init();
    cpu_freq = 100000000; 
    cnts     = (cpu_freq / OSCfg_TickRate_Hz);              
    OS_CPU_SysTickInit(cnts); 
    SYSTICK_InternalInit(10);
    SYSTICK_IntCmd(ENABLE);
    SYSTICK_Cmd(ENABLE);
    GPIO_PinWrite(0,20,0);
    while(1)
    {
        OSTimeDly((CPU_INT16U   )   500,
                            (OS_OPT         )   OS_OPT_TIME_DLY,
                            (OS_ERR      *) &err);
        GPIO_PinWrite(0,20,1);
        OSTimeDly((CPU_INT16U   )   500,
                            (OS_OPT         )   OS_OPT_TIME_DLY,
                            (OS_ERR      *) &err);
        GPIO_PinWrite(0,20,0);
    }
}

Please help me to solve this problem.

My compiler is Keil.

Thanks in advance

Best Answer

Open startup_LPC177xx.s Replace PendSV_Handler with OS_CPU_PendSVHandler and SysTick_Handler with OS_CPU_SysTickHandler. Press CTRL+F and use Replace tab to do this with your whole project.

It will work!

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