main.c

在LPC214上移植ucos2代码

#include "config.h"


#define  TASK_STK_SIZE                 64


#define LED  ( 1 << 24 )
#define CR     0x0D

                                
OS_STK        TaskLEDStk[TASK_STK_SIZE];
OS_STK        TaskuarSize[TASK_STK_SIZE];

void  TaskStart(void );
void  Task_LED(void *pdata);
void  Print_CPU_usage (void *pdata);

int main(void)
{
	OSInit();                                              /* Initialize uC/OS-II                      */
	TaskStart();
    OSStart();
    return 0;
}

void  TaskStart (void)
{

                                             
	OSTaskCreate(Task_LED, (void *)0, &TaskLEDStk[TASK_STK_SIZE - 1], 15);
    OSTaskCreate(Print_CPU_usage, (void *)0, &TaskuarSize[TASK_STK_SIZE - 1], 16);
}


void  Task_LED (void *pdata)
{
   
    //INT8U  err;
	pdata = pdata;
	TargetInit();
	OSStatInit();                /* Initialize uC/OS-II's statistics         */
	
	PINSEL2 = PINSEL2 & (~0x08); //P1[25-16]设置为GPIO
	IO1DIR |= LED;		         //设置IO口为输出口
    while(1)
    {
        IO1SET = LED;                
        OSTimeDly(OS_TICKS_PER_SEC/2);  //延时1/2秒
		IO1CLR = LED;
		OSTimeDly(OS_TICKS_PER_SEC/2);  //延时1/2秒                                                        
    }
}


void uar_putchar (INT8U ch) 
{			 

  if (ch == '\n') 
  {
    while (!(U0LSR & 0x20));
    U1THR = CR;              	   // output CR 
  }
  while (!(U0LSR & 0x20));
  U0THR = ch;
}

void Print_CPU_usage (void *pdata)
{
   INT8U Tab[]={"CPU Usage = #"};
   INT8U *p;
   pdata = pdata;
   while(1)
   {
     p=Tab;
     while(*p!='#')
     {
        uar_putchar(*p++);
     }
     if(((INT8U)OSCPUUsage)/10!=0)
       uar_putchar(((INT8U)OSCPUUsage)/10+48);
     else
       uar_putchar(' ');
     if(((INT8U)OSCPUUsage)%10!=0)
       uar_putchar(((INT8U)OSCPUUsage)%10+48);
     else
       uar_putchar(' ');
     uar_putchar('%');
     uar_putchar('\n');
     OSTimeDly(OS_TICKS_PER_SEC);
   }
}