ex1.c

UCOS在C51上实现的两个例子

#include <includes.h>
#include <serial.h>

void TaskA(void*) reentrant;
void TaskB(void*) reentrant;
void TaskC(void*) reentrant;
void TaskD(void*) reentrant;
void TaskE(void*) reentrant;

OS_STK TaskStartStkA[MaxStkSize];//注意：在ASM文件中设置?STACK空间为40H即64。
OS_STK TaskStartStkB[MaxStkSize];
OS_STK TaskStartStkC[MaxStkSize];
OS_STK TaskStartStkD[MaxStkSize];
OS_STK TaskStartStkE[MaxStkSize];


void main(void)
{   
    OSInit();
    
    InitTimer0();
    InitSerial();
    InitSerialBuffer();
    
    OSTaskCreate(TaskA, (void *)0, TaskStartStkA,2);
    OSTaskCreate(TaskB, (void *)0, TaskStartStkB,3);
    OSTaskCreate(TaskC, (void *)0, TaskStartStkC,4);
    OSTaskCreate(TaskD, (void *)0, TaskStartStkD,5);
	OSTaskCreate(TaskE, (void *)0, TaskStartStkE,6);
    
    OSStart();
}


void TaskA(void *pdat) reentrant
{   
    pdat=pdat;
    PrintStr("\nuC/OS-II is running.\n");
    
    for(;;){
		PrintStr("Task A is active.\n");
        OSTimeDly(0.1*OS_TICKS_PER_SEC);    
    }    
}

void TaskB(void *pdat) reentrant
{   
    pdat=pdat; 
    
    for(;;){
        PrintStr("Task B is active.\n");
        OSTimeDly(0.2*OS_TICKS_PER_SEC);    
    }    
}

void TaskC(void *pdat) reentrant
{  
    pdat=pdat; 
    
    for(;;){
        PrintStr("Task C is active.\n\n");
        OSTimeDly(4*OS_TICKS_PER_SEC);    
    }    
}
void TaskD(void *pdat) reentrant
{   int i,j;
    pdat=pdat;
    for(;;){
		PrintStr("Task D is active.\n");
		for(i=0;i<10;i++){
		for(j=0;j<1000;j++){}
		PrintStr("Hello,are you OK??\n");
		}
        OSTimeDly(8*OS_TICKS_PER_SEC);    
    }    
}
void TaskE(void *pdat) reentrant
{   int i,j;
    pdat=pdat; 
    
    for(;;){
        PrintStr("Task E is active.\n");
        for(i=0;i<100;i++){
		for(j=0;j<100;j++){}
		PrintChar('0'+i);
		PrintChar('\t');
		if(i%20==0)PrintChar('\n');
		}
		PrintChar('\n');
        OSTimeDly(OS_TICKS_PER_SEC);    
    }    
}