yy1.c

Keil C51的UCOS-2操作系统源代码

#include <includes.h>

void TaskStartyya(void *yydata) reentrant;
void TaskStartyyb(void *yydata) reentrant;
void TaskStartyyc(void *yydata) reentrant;

OS_STK TaskStartStkyya[MaxStkSize];//注意：我在ASM文件中设置?STACK空间为40H即64。
OS_STK TaskStartStkyyb[MaxStkSize];
OS_STK TaskStartStkyyc[MaxStkSize];

void main(void)
{
    OSInit();
    
    InitTimer0();
    InitSerial();
    InitSerialBuffer();
    
    OSTaskCreate(TaskStartyya, (void *)0, &TaskStartStkyya[0],2);
    OSTaskCreate(TaskStartyyb, (void *)0, &TaskStartStkyyb[0],3);
    OSTaskCreate(TaskStartyyc, (void *)0, &TaskStartStkyyc[0],4);
    
    OSStart();
}


void TaskStartyya(void *yydata) reentrant
{
    yydata=yydata;
    clrscr();
    PrintStr("\n\t\t*******************************\n");
    PrintStr("\t\t*     Hello! The world.       *\n");
    PrintStr("\t\t*******************************\n\n\n");
    
    for(;;){
        PrintStr("\tAAAAAA111111 is active.\n");
        OSTimeDly(OS_TICKS_PER_SEC);    
    }    
}

void TaskStartyyb(void *yydata) reentrant
{
    yydata=yydata; 
    
    for(;;){
        PrintStr("\tBBBBBB333333 is active.\n");
        OSTimeDly(3*OS_TICKS_PER_SEC);    
    }    
}

void TaskStartyyc(void *yydata) reentrant
{
    yydata=yydata; 
    
    for(;;){
        PrintStr("\tCCCCCC666666 is active.\n");
        OSTimeDly(6*OS_TICKS_PER_SEC);    
    }    
}