task_arm.c

来自「uCOS-II移植到ARM7上的C语言代码. 包含uCOS-II移植代码含标准」· C语言 代码 · 共 26 行

#include "config.h"
extern OS_EVENT        *RandomSem;

/*
*********************************************************************************************************
*                                                  TASKS
*********************************************************************************************************
*/
void  Task (void *pdata)
{
    INT8U  x;
    INT8U  y;
    INT8U  err;


    for (;;) {
        OSSemPend(RandomSem, 0, &err);           /* Acquire semaphore to perform random numbers        */
        x = random(80);                          /* Find X position where task number will appear      */
        y = random(16);                          /* Find Y position where task number will appear      */
        OSSemPost(RandomSem);                    /* Release semaphore                                  */
                                                 /* Display the task number on the screen              */
        PC_DispChar(x, y + 5, *(char *)pdata, DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
        OSTimeDly(1);                            /* Delay 1 clock tick                                 */
    }
}