void TaskStart (void *pdata)
{
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
INT16S key;
pdata = pdata; /* Prevent compiler warning */
TaskStartDispInit(); /* Setup the display */
OSStatInit(); /* Initialize uC/OS-II's statistics */
MsgQueue = OSQCreate(&MsgQueueTbl[0], MSG_QUEUE_SIZE); /* Create a message queue */
TaskStartCreateTasks();
for (;;) {
TaskStartDisp(); /* Update the display */
if (PC_GetKey(&key)) { /* See if key has been pressed */
if (key == 0x1B) { /* Yes, see if it's the ESCAPE key */
exit(0); /* Yes, return to DOS */
}
}
OSCtxSwCtr = 0; /* Clear the context switch counter */
OSTimeDly(OS_TICKS_PER_SEC); /* Wait one second */
}
}
/*
*********************************************************************************************************
* STARTUP TASK
*********************************************************************************************************
*/
void TaskStart (void *pdata)
{
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
char s[100];
INT16S key;
pdata = pdata; /* Prevent compiler warning */
TaskStartDispInit(); /* Initialize the display */
OS_ENTER_CRITICAL(); /* Used to disable interrupts (see chapter 13)*/
PC_VectSet(0x08, OSTickISR); /* Install uC/OS-II's clock tick ISR */
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL(); /* Re-enable interrupts*/
OSStatInit(); /* Initialize uC/OS-II's statistics */
TaskStartCreateTasks(); /* Create all the application tasks */
for (;;) {
if (PC_GetKey(&key) == TRUE) { /* See if key has been pressed */
if (key == 0x1B) { /* Yes, see if it's the ESCAPE key */
PC_DOSReturn(); /* Return to DOS */
}
}
OSCtxSwCtr = 0; /* Clear context switch counter */
OSTimeDlyHMSM(0, 0, 1, 0); /* Wait one second */
}
}
/*
*********************************************************************************************************
* STARTUP TASK
*********************************************************************************************************
*/
void TaskStart (void *pdata) {
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
char s[100];
INT16S key;
pdata = pdata; /* Prevent compiler warning */
TaskStartDispInit(); /* Initialize the display */
OS_ENTER_CRITICAL();
PC_VectSet(0x08, OSTickISR); /* Install uC/OS-II's clock tick ISR */
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL();
OSStatInit(); /* Initialize uC/OS-II's statistics */
FileContentInit(); /* Initialize fileContent */
TaskStartCreateTasks(); /* Create all the application tasks */
OSTaskCreate(ReceiveTask,(void *)0, &ReceiveTaskStk[TASK_STK_SIZE - 1], 11);
for (;;) {
TaskStartDisp(); /* Update the display */
if (PC_GetKey(&key) == TRUE) { /* See if key has been pressed */
if (key == 'q') /* Yes, see if it's the ESCAPE key */
PC_DOSReturn(); /* Return to DOS */
if (key == 'b') /* See if it's b and then stop the tasks */
TaskSuspend();
if (key == 'r') /* See if it's r and then resume the tasks */
TaskResume();
}
OSCtxSwCtr = 0; /* Clear context switch counter */
OSTimeDlyHMSM(0, 0, 0, 100); /* Wait one second */
}
}
void TaskStart ( void *data )
{
PWINDOWS ptr = GetActiveWindow();
UBYTE i;
char sCmd[MAX_X];
WORD key;
WORD index, pos = 0x00;
data = data; /* Prevent compiler warning */
OS_ENTER_CRITICAL();
PC_VectSet(0x08, OSTickISR); /* Install uC/OS-II's clock tick ISR */
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL();
PC_DispChar(0, 0, ' ', 0x00);
PC_DispStr (8, 16, "Determining CPU's capacity ...", DISP_FGND_WHITE);
CreateWindow (0, StartY, MAX_X, EndY, DISP_FGND_WHITE, DISP_BGND_BLUE, "[ Prompt Window ]");
CreateTaskWindows();
OSStatInit(); /* Initialize uC/OS-II's statistics */
for (i = 0; i < N_TASKS; i ++)
{ /* Create N_TASKS identical tasks */
TaskData[i] = '0' + i; /* Each task will display its own letter */
OSTaskCreate(Task, (void *)&TaskData[i], (void *)&TaskStk[i][TASK_STK_SIZE - 1], i + 1);
}
DisplayTitle();
ClearWindow();
memset(sCmd, 0x00, MAX_X);
DisplayPrompt();
for (;;)
{
DisplayStatus(); // display status of tasks
if (PC_GetKey(&key) == TRUE)
{ /* See if key has been pressed */
if (key == 0x1B)
{ /* Yes, see if it's the ESCAPE key */
PC_DOSReturn(); /* Return to DOS */
}
else if (key == 0x08) // backspace
{
pos --;
pos = pos <= 0x00 ? 0x00 : pos;
sCmd[pos] = '\0';
PC_DispChar(ptr->cx + pos + strlen(sCmdPrompt), ptr->cy, ' ', ptr->color);
DisplayCursor(ptr->cx + pos + strlen(sCmdPrompt), ptr->cy);
}
else if (key == 0x0d || key == 0x0a) // enter
{
if (pos)
{
index = ParseCommand(sCmd);
HandleCommand(index);
}
memset(sCmd, 0x00, MAX_X);
pos = 0x00;
ptr->cy ++;
if (ptr->cy == ptr->ey - 1)
ClearWindow();
DisplayPrompt();
}
else if ((key >= '0' && key <= '9') ||
(key >= 'a' && key <= 'z') || (key >= 'A' && key <= 'Z'))
{
if (pos < MAX_X)
{
sCmd[pos] = (char)key;
PC_DispChar(ptr->cx + pos + strlen(sCmdPrompt), ptr->cy, key, ptr->color);
DisplayCursor (ptr->cx + pos + strlen(sCmdPrompt) + 1, ptr->cy);
}
pos ++;
}
}
OSTimeDlyHMSM(0, 0, 0, 200); /* Wait 200 ms */
}
}
