mian.c

dsp常用例程UCOS程序源代码 基于TIDSP

/*This file can test OSIntCtrSw() and OSTickISR(),calling OSTimeDly() schedued to 
IdleTask,untile receive timer interrupt.timer int call OSTickISR(),then call OSTimeTick()
decrease the value of counter-OSTCBDLY to 0.schedued to Testtask,led's value is changed*/
   
 #include "includes.h"


OS_STK TestTaskStk[100];
OS_STK TaskStk[100];

void TestTask(void *pdata);
void Task(void *pdata);

void KickDog(void)
{
     *WDKEY=0X0055;
     *WDKEY=0X00AA;
     *WDCR=0X006F;
     return;
}        

void HardwareInit(void)
{
    asm(" clrc CNF");
    asm(" setc SXM");
    *IFR=0X0FFFF;
    *IMR=0X0004;     /*enable Int2*/
    
    *CKCR1=0X00BB;   /*clock in is 10MHz,cpu clock is 20Mhz*/
    *CKCR0=0X00C1;
    *SYSCR=0X40C0; 
    *WDCR=0X006F;
    KickDog();
    return;
}                  


void T2PInit(void)
{
  *T2CNT=0X0000;
  *T2PR=0X186A;     /*timer interrupt frequence is 100HZ*/
  *T2CON=0X0EC0A;   /*continuous up/down mode,TPS is 16 */
  
  *EVIFRB|=0X0001;
  *EVIMRB=0X0001;    /*enable timer1 Period interrupt*/
  return;
} 
void  nothing(void)
{
  return;
}


void main(void)
{ 
  HardwareInit();
  T2PInit();
  OSInit(); 
  printf("Inital End.\n");
  OSTaskCreate(TestTask,(void *)0,&TestTaskStk[0],4);
  
  printf("MultiTask Start...\n");
  OSStart();
}
  volatile int led=0;
void TestTask(void *pdata)
{
  
  pdata=pdata;
  *T2CON|=0x0040;
  OSTaskCreate(Task,(void *)0,&TaskStk[0],5);
  asm(" clrc INTM");       /*Stack init cpu status reg disable interrupt*/       
  while(1)
  {  
      led++;
      printf("led=%d\n",led);
      OSTimeDly(1);
   
  }
} 
void Task(void *pdata)
{
   pdata=pdata;
   asm("	clrc INTM");
   while(1)
   {
     printf("This is Task!\n");
     OSTimeDly(2);
   }
}