?? test.c
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/*$PAGE*/
/*
*********************************************************************************************************
* CREATE TASKS
*********************************************************************************************************
*/
static void TaskStartCreateTasks (void)
{
OSTaskCreateExt(TaskClk,
(void *)0,
&TaskClkStk[TASK_STK_SIZE - 1],
TASK_CLK_PRIO,
TASK_CLK_ID,
&TaskClkStk[0],
TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
OSTaskCreateExt(Task1,
(void *)0,
&Task1Stk[TASK_STK_SIZE - 1],
TASK_1_PRIO,
TASK_1_ID,
&Task1Stk[0],
TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
OSTaskCreateExt(Task2,
(void *)0,
&Task2Stk[TASK_STK_SIZE - 1],
TASK_2_PRIO,
TASK_2_ID,
&Task2Stk[0],
TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
OSTaskCreateExt(Task3,
(void *)0,
&Task3Stk[TASK_STK_SIZE - 1],
TASK_3_PRIO,
TASK_3_ID,
&Task3Stk[0],
TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
OSTaskCreateExt(Task4,
(void *)0,
&Task4Stk[TASK_STK_SIZE-1],
TASK_4_PRIO,
TASK_4_ID,
&Task4Stk[0],
TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
OSTaskCreateExt(Task5,
(void *)0,
&Task5Stk[TASK_STK_SIZE-1],
TASK_5_PRIO,
TASK_5_ID,
&Task5Stk[0],
TASK_STK_SIZE,
(void *)0,
OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
}
/*$PAGE*/
/*
*********************************************************************************************************
* 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;
for (;;) {
for (i = 0; i < 7; i++) {
PC_ElapsedStart();
err = OSTaskStkChk(TASK_START_PRIO + i, &data);
time = PC_ElapsedStop();
if (err == OS_NO_ERR) {
sprintf(s, "%4ld %4ld %4ld %6d",
data.OSFree + data.OSUsed,
data.OSFree,
data.OSUsed,
time);
PC_DispStr(19, 12 + i, s, DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
}
}
OSTimeDlyHMSM(0, 0, 0, 100); /* Delay for 100 mS */
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* TASK #2
*
* Description: This task displays a clockwise rotating wheel on the screen.
*********************************************************************************************************
*/
void Task2 (void *data)
{
data = data;
for (;;) {
PC_DispChar(70, 15, '|', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(10);
PC_DispChar(70, 15, '/', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(10);
PC_DispChar(70, 15, '-', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(10);
PC_DispChar(70, 15, '\\', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(10);
}
}
/*$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.
*********************************************************************************************************
*/
void Task3 (void *data)
{
char dummy[500];
INT16U i;
data = data;
for (i = 0; i < 499; i++) { /* Use up the stack with 'junk' */
dummy[i] = '?';
}
for (;;) {
PC_DispChar(70, 16, '|', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(20);
PC_DispChar(70, 16, '\\', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(20);
PC_DispChar(70, 16, '-', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(20);
PC_DispChar(70, 16, '/', DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(20);
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* TASK #4
*
* Description: This task sends a message to Task #5. The message consist of a character that needs to
* be displayed by Task #5. This task then waits for an acknowledgement from Task #5
* indicating that the message has been displayed.
*********************************************************************************************************
*/
void Task4 (void *data)
{
char txmsg;
INT8U err;
data = data;
txmsg = 'A';
for (;;) {
OSMboxPost(TxMbox, (void *)&txmsg); /* Send message to Task #5 */
OSMboxPend(AckMbox, 0, &err); /* Wait for acknowledgement from Task #5 */
txmsg++; /* Next message to send */
if (txmsg == 'Z') {
txmsg = 'A'; /* Start new series of messages */
}
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* TASK #5
*
* Description: This task displays messages sent by Task #4. When the message is displayed, Task #5
* acknowledges Task #4.
*********************************************************************************************************
*/
void Task5 (void *data)
{
char *rxmsg;
INT8U err;
data = data;
for (;;) {
rxmsg = (char *)OSMboxPend(TxMbox, 0, &err); /* Wait for message from Task #4 */
PC_DispChar(70, 18, *rxmsg, DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDlyHMSM(0, 0, 1, 0); /* Wait 1 second */
OSMboxPost(AckMbox, (void *)1); /* Acknowledge reception of msg */
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* CLOCK TASK
*********************************************************************************************************
*/
void TaskClk (void *data)
{
char s[40];
data = data;
for (;;) {
PC_GetDateTime(s);
PC_DispStr(60, 23, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDly(OS_TICKS_PER_SEC);
}
}
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