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[/] [openrisc/] [trunk/] [rtos/] [ucos-ii/] [2.91/] [tasks/] [tasks1.c] - Rev 554
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/* Example uC/OS-II tasks. Time-related tasks. */ #include "includes.h" #define TASK_STK_SIZE 512 /* Size of each task's stacks (# of WORDs) */ #define TASK_START_ID 0 /* Application tasks IDs */ #define TASK_CLK_ID 1 #define TASK_1_ID 2 #define TASK_2_ID 3 #define TASK_3_ID 4 #define TASK_START_PRIO 10 /* Application tasks priorities */ #define TASK_CLK_PRIO 11 #define TASK_1_PRIO 12 #define TASK_2_PRIO 13 #define TASK_3_PRIO 14 OS_STK TaskClkStk[TASK_STK_SIZE]; /* Clock task stack */ OS_STK Task1Stk[TASK_STK_SIZE]; /* Task #1 task stack */ OS_STK Task2Stk[TASK_STK_SIZE]; /* Task #2 task stack */ OS_STK Task3Stk[TASK_STK_SIZE]; /* Task #3 task stack */ void TaskStartCreateTasks (void); void TaskClk(void *data); void Task1(void *data); void Task2(void *data); void Task3(void *data); /* This function is called from TaskStart() in the same file as main() */ void TaskStartCreateTasks (void) { OSTaskCreateExt(TaskClk, (void *)0, &TaskClkStk[TASK_STK_SIZE - 1], TASK_CLK_PRIO, TASK_CLK_ID, &TaskClkStk[0], TASK_STK_SIZE, (void *)0, OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR); OSTaskCreateExt(Task1, (void *)0, &Task1Stk[TASK_STK_SIZE - 1], TASK_1_PRIO, TASK_1_ID, &Task1Stk[0], TASK_STK_SIZE, (void *)0, OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR); OSTaskCreateExt(Task2, (void *)0, &Task2Stk[TASK_STK_SIZE - 1], TASK_2_PRIO, TASK_2_ID, &Task2Stk[0], TASK_STK_SIZE, (void *)0, OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR); OSTaskCreateExt(Task3, (void *)0, &Task3Stk[TASK_STK_SIZE - 1], TASK_3_PRIO, TASK_3_ID, &Task3Stk[0], TASK_STK_SIZE, (void *)0, OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR); console_clear(); console_puts(28,2,"************************"); console_puts(28,3,"* uC/OS-II on OpenRISC *"); console_puts(28,4,"************************"); console_puts(28,6,"Tasks 1: four timer tasks"); console_puts(18,20,"Press 'q' to exit simulator, or reset board."); } /********************************************************************************************************* * TASK #1 * * Description: This task executes every 100 mS and measures the time it task to perform stack checking * for each of the 5 application tasks. Also, this task displays the statistics related to * each task's stack usage. ********************************************************************************************************* */ void Task1 (void *pdata) { INT8U err; OS_STK_DATA data; /* Storage for task stack data */ INT16U time; /* Execution time (in uS) */ INT8U i; char s[80]; pdata = pdata; console_puts(28, 10, "Memory stats per task"); console_puts(19, 11, "Total Free Used Time Taken"); for (;;) { for (i = 0; i < 5; i++) { //TODO: Some sort of timer PC_ElapsedStart(); err = OSTaskStkChk(TASK_START_PRIO + i, &data); //TODO: time = PC_ElapsedStop(); if (err == OS_ERR_NONE) { sprintf(s, "%4d %4d %4d %6d", data.OSFree + data.OSUsed, data.OSFree, data.OSUsed, time); console_puts(19, 12 + i, s/*, DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY*/); } } OSTimeDlyHMSM(0, 0, 0, 100); /* Delay for 100 mS */ } } /*$PAGE*/ /* ********************************************************************************************************* * TASK #2 * * Description: This task displays a clockwise rotating wheel on the screen. ********************************************************************************************************* */ #define SPIN1X 30 #define SPIN1Y 18 #define SPIN1DLY 20 void Task2 (void *data) { data = data; for (;;) { console_putc(SPIN1X, SPIN1Y, '|'); OSTimeDly(SPIN1DLY); console_putc(SPIN1X, SPIN1Y, '/'); OSTimeDly(SPIN1DLY); console_putc(SPIN1X, SPIN1Y, '-'); OSTimeDly(SPIN1DLY); console_putc(SPIN1X, SPIN1Y, '\\'); OSTimeDly(SPIN1DLY); } } /*$PAGE*/ /* ********************************************************************************************************* * TASK #3 * * Description: This task displays a counter-clockwise rotating wheel on the screen. * * Note(s) : I allocated 500 bytes of storage on the stack to artificially 'eat' up stack space. ********************************************************************************************************* */ #define SPIN2X 50 #define SPIN2Y 18 #define SPIN2DLY 10 void Task3 (void *data) { char dummy[200]; INT16U i; data = data; for (i = 0; i < 199; i++) { dummy[i] = '?'; } for (;;) { console_putc(SPIN2X, SPIN2Y, '|'); OSTimeDly(SPIN2DLY); console_putc(SPIN2X, SPIN2Y, '\\'); OSTimeDly(SPIN2DLY); console_putc(SPIN2X, SPIN2Y, '-'); OSTimeDly(SPIN2DLY); console_putc(SPIN2X, SPIN2Y, '/'); OSTimeDly(SPIN2DLY); } } /*$PAGE*/ /* ********************************************************************************************************* * CLOCK TASK ********************************************************************************************************* */ void TaskClk (void *data) { char s[64]; int secs = 0; data = data; for (;;) { //PC_GetDateTime(s); //PC_DispStr(60, 23, s, DISP_FGND_YELLOW + DISP_BGND_BLUE); sprintf(s, "Seconds: %d\n",secs); console_puts(33, 8, s); OSTimeDly(OS_TICKS_PER_SEC); secs++; } }
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