example.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;

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];

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);
    
    OSStart();
}


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

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