www.pudn.com > uCOS-II.rar > TEST.C
/*
*********************************************************************************************************
* uC/OS-II
* The Real-Time Kernel
*
* (c) Copyright 1992-2002, Jean J. Labrosse, Weston, FL
* All Rights Reserved
*
* EXAMPLE #3
*********************************************************************************************************
*/
#include "includes.h"
/*
*********************************************************************************************************
* CONSTANTS
*********************************************************************************************************
*/
#define TASK_STK_SIZE 512 /* Size of each task's stacks (# of WORDs) */
#define TASK_START_ID 0 /* Application tasks */
#define TASK_CLK_ID 1
#define TASK_1_ID 2
#define TASK_2_ID 3
#define TASK_3_ID 4
#define TASK_4_ID 5
#define TASK_5_ID 6
#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
#define TASK_4_PRIO 15
#define TASK_5_PRIO 16
#define MSG_QUEUE_SIZE 20 /* Size of message queue used in example */
/*
*********************************************************************************************************
* DATA TYPES
*********************************************************************************************************
*/
typedef struct {
char TaskName[30];
INT16U TaskCtr;
INT16U TaskExecTime;
INT32U TaskTotExecTime;
} TASK_USER_DATA;
/*
*********************************************************************************************************
* VARIABLES
*********************************************************************************************************
*/
OS_STK TaskStartStk[TASK_STK_SIZE]; /* Startup task stack */
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 */
OS_STK Task4Stk[TASK_STK_SIZE]; /* Task #4 task stack */
OS_STK Task5Stk[TASK_STK_SIZE]; /* Task #5 task stack */
TASK_USER_DATA TaskUserData[7];
OS_EVENT *MsgQueue; /* Message queue pointer */
void *MsgQueueTbl[20]; /* Storage for messages */
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
*********************************************************************************************************
*/
void TaskStart(void *data); /* Function prototypes of tasks */
static void TaskStartCreateTasks(void);
static void TaskStartDispInit(void);
static void TaskStartDisp(void);
void TaskClk(void *data);
void Task1(void *data);
void Task2(void *data);
void Task3(void *data);
void Task4(void *data);
void Task5(void *data);
void DispTaskStat(INT8U id);
/*$PAGE*/
/*
*********************************************************************************************************
* MAIN
*********************************************************************************************************
*/
void main (void)
{
PC_DispClrScr(DISP_BGND_BLACK); /* Clear the screen */
OSInit(); /* Initialize uC/OS-II */
PC_DOSSaveReturn(); /* Save environment to return to DOS */
PC_VectSet(uCOS, OSCtxSw); /* Install uC/OS-II's context switch vector */
PC_ElapsedInit(); /* Initialized elapsed time measurement */
strcpy(TaskUserData[TASK_START_ID].TaskName, "StartTask");
OSTaskCreateExt(TaskStart,
(void *)0,
&TaskStartStk[TASK_STK_SIZE - 1],
TASK_START_PRIO,
TASK_START_ID,
&TaskStartStk[0],
TASK_STK_SIZE,
&TaskUserData[TASK_START_ID],
0);
OSStart(); /* Start multitasking */
}
/*$PAGE*/
/*
*********************************************************************************************************
* STARTUP TASK
*********************************************************************************************************
*/
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 */
OS_ENTER_CRITICAL(); /* Install uC/OS-II's clock tick ISR */
PC_VectSet(0x08, OSTickISR);
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL();
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 */
PC_DOSReturn(); /* Yes, return to DOS */
}
}
OSCtxSwCtr = 0; /* Clear the context switch counter */
OSTimeDly(OS_TICKS_PER_SEC); /* Wait one second */
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* CREATE APPLICATION TASKS
*********************************************************************************************************
*/
void TaskStartCreateTasks (void)
{
strcpy(TaskUserData[TASK_CLK_ID].TaskName, "Clock Task");
OSTaskCreateExt(TaskClk,
(void *)0,
&TaskClkStk[TASK_STK_SIZE - 1],
TASK_CLK_PRIO,
TASK_CLK_ID,
&TaskClkStk[0],
TASK_STK_SIZE,
&TaskUserData[TASK_CLK_ID],
0);
strcpy(TaskUserData[TASK_1_ID].TaskName, "MsgQ Rx Task");
OSTaskCreateExt(Task1,
(void *)0,
&Task1Stk[TASK_STK_SIZE - 1],
TASK_1_PRIO,
TASK_1_ID,
&Task1Stk[0],
TASK_STK_SIZE,
&TaskUserData[TASK_1_ID],
0);
strcpy(TaskUserData[TASK_2_ID].TaskName, "MsgQ Tx Task #2");
OSTaskCreateExt(Task2,
(void *)0,
&Task2Stk[TASK_STK_SIZE - 1],
TASK_2_PRIO,
TASK_2_ID,
&Task2Stk[0],
TASK_STK_SIZE,
&TaskUserData[TASK_2_ID],
0);
strcpy(TaskUserData[TASK_3_ID].TaskName, "MsgQ Tx Task #3");
OSTaskCreateExt(Task3,
(void *)0,
&Task3Stk[TASK_STK_SIZE - 1],
TASK_3_PRIO,
TASK_3_ID,
&Task3Stk[0],
TASK_STK_SIZE,
&TaskUserData[TASK_3_ID],
0);
strcpy(TaskUserData[TASK_4_ID].TaskName, "MsgQ Tx Task #4");
OSTaskCreateExt(Task4,
(void *)0,
&Task4Stk[TASK_STK_SIZE - 1],
TASK_4_PRIO,
TASK_4_ID,
&Task4Stk[0],
TASK_STK_SIZE,
&TaskUserData[TASK_4_ID],
0);
strcpy(TaskUserData[TASK_5_ID].TaskName, "TimeDlyTask");
OSTaskCreateExt(Task5,
(void *)0,
&Task5Stk[TASK_STK_SIZE - 1],
TASK_5_PRIO,
TASK_5_ID,
&Task5Stk[0],
TASK_STK_SIZE,
&TaskUserData[TASK_5_ID],
0);
}
/*$PAGE*/
/*
*********************************************************************************************************
* INITIALIZE THE DISPLAY
*********************************************************************************************************
*/
static void TaskStartDispInit (void)
{
/* 1111111111222222222233333333334444444444555555555566666666667777777777 */
/* 01234567890123456789012345678901234567890123456789012345678901234567890123456789 */
PC_DispStr( 0, 0, " uC/OS-II, The Real-Time Kernel ", DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK);
PC_DispStr( 0, 1, " Jean J. Labrosse ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 2, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 3, " EXAMPLE #3 ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 4, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 5, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 6, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 7, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 8, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 9, "Task Name Counter Exec.Time(uS) Tot.Exec.Time(uS) %Tot. ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 10, "----------------- ------- ------------- ----------------- ----- ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 11, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 12, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 13, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 14, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 15, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 16, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 17, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 18, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 19, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 20, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 21, " ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 22, "#Tasks : CPU Usage: % ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 23, "#Task switch/sec: ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
PC_DispStr( 0, 24, " <-PRESS 'ESC' TO QUIT-> ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY + DISP_BLINK);
/* 1111111111222222222233333333334444444444555555555566666666667777777777 */
/* 01234567890123456789012345678901234567890123456789012345678901234567890123456789 */
}
/*$PAGE*/
/*
*********************************************************************************************************
* UPDATE THE DISPLAY
*********************************************************************************************************
*/
static void TaskStartDisp (void)
{
char s[80];
sprintf(s, "%5d", OSTaskCtr); /* Display #tasks running */
PC_DispStr(18, 22, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
#if OS_TASK_STAT_EN > 0
sprintf(s, "%3d", OSCPUUsage); /* Display CPU usage in % */
PC_DispStr(36, 22, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
#endif
sprintf(s, "%5d", OSCtxSwCtr); /* Display #context switches per second */
PC_DispStr(18, 23, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
sprintf(s, "V%1d.%02d", OSVersion() / 100, OSVersion() % 100); /* Display uC/OS-II's version number */
PC_DispStr(75, 24, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
switch (_8087) { /* Display whether FPU present */
case 0:
PC_DispStr(71, 22, " NO FPU ", DISP_FGND_YELLOW + DISP_BGND_BLUE);
break;
case 1:
PC_DispStr(71, 22, " 8087 FPU", DISP_FGND_YELLOW + DISP_BGND_BLUE);
break;
case 2:
PC_DispStr(71, 22, "80287 FPU", DISP_FGND_YELLOW + DISP_BGND_BLUE);
break;
case 3:
PC_DispStr(71, 22, "80387 FPU", DISP_FGND_YELLOW + DISP_BGND_BLUE);
break;
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* TASK #1
*********************************************************************************************************
*/
void Task1 (void *pdata)
{
char *msg;
INT8U err;
pdata = pdata;
for (;;) {
msg = (char *)OSQPend(MsgQueue, 0, &err);
PC_DispStr(70, 13, msg, DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDlyHMSM(0, 0, 0, 100);
}
}
/*
*********************************************************************************************************
* TASK #2
*********************************************************************************************************
*/
void Task2 (void *pdata)
{
char msg[20];
pdata = pdata;
strcpy(&msg[0], "Task 2");
for (;;) {
OSQPost(MsgQueue, (void *)&msg[0]);
OSTimeDlyHMSM(0, 0, 0, 500);
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* TASK #3
*********************************************************************************************************
*/
void Task3 (void *pdata)
{
char msg[20];
pdata = pdata;
strcpy(&msg[0], "Task 3");
for (;;) {
OSQPost(MsgQueue, (void *)&msg[0]);
OSTimeDlyHMSM(0, 0, 0, 500);
}
}
/*
*********************************************************************************************************
* TASK #4
*********************************************************************************************************
*/
void Task4 (void *pdata)
{
char msg[20];
pdata = pdata;
strcpy(&msg[0], "Task 4");
for (;;) {
OSQPost(MsgQueue, (void *)&msg[0]);
OSTimeDlyHMSM(0, 0, 0, 500);
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* TASK #5
*********************************************************************************************************
*/
void Task5 (void *pdata)
{
pdata = pdata;
for (;;) {
OSTimeDlyHMSM(0, 0, 0, 100);
}
}
/*
*********************************************************************************************************
* CLOCK TASK
*********************************************************************************************************
*/
void TaskClk (void *pdata)
{
char s[40];
pdata = pdata;
for (;;) {
PC_GetDateTime(s);
PC_DispStr(60, 23, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
OSTimeDlyHMSM(0, 0, 0, 500);
}
}
/*$PAGE*/
/*
*********************************************************************************************************
* DISPLAY TASK RELATED STATISTICS
*********************************************************************************************************
*/
void DispTaskStat (INT8U id)
{
char s[80];
sprintf(s, "%-18s %05u %5u %10ld",
TaskUserData[id].TaskName,
TaskUserData[id].TaskCtr,
TaskUserData[id].TaskExecTime,
TaskUserData[id].TaskTotExecTime);
PC_DispStr(0, id + 11, s, DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
}
/*
*********************************************************************************************************
* OS INITIALIZATION HOOK
* (BEGINNING)
*********************************************************************************************************
*/
void OSInitHookBegin (void)
{
}
/*
*********************************************************************************************************
* OS INITIALIZATION HOOK
* (END)
*********************************************************************************************************
*/
void OSInitHookEnd (void)
{
}
/*
*********************************************************************************************************
* TASK CREATION HOOK
*********************************************************************************************************
*/
void OSTaskCreateHook (OS_TCB *ptcb)
{
ptcb = ptcb; /* Prevent compiler warning */
}
/*
*********************************************************************************************************
* TASK DELETION HOOK
*********************************************************************************************************
*/
void OSTaskDelHook (OS_TCB *ptcb)
{
ptcb = ptcb; /* Prevent compiler warning */
}
/*
*********************************************************************************************************
* IDLE TASK HOOK
*********************************************************************************************************
*/
void OSTaskIdleHook (void)
{
}
/*
*********************************************************************************************************
* STATISTIC TASK HOOK
*********************************************************************************************************
*/
void OSTaskStatHook (void)
{
char s[80];
INT8U i;
INT32U total;
INT8U pct;
total = 0L; /* Totalize TOT. EXEC. TIME for each task */
for (i = 0; i < 7; i++) {
total += TaskUserData[i].TaskTotExecTime;
DispTaskStat(i); /* Display task data */
}
if (total > 0) {
for (i = 0; i < 7; i++) { /* Derive percentage of each task */
pct = 100 * TaskUserData[i].TaskTotExecTime / total;
sprintf(s, "%3d %%", pct);
PC_DispStr(62, i + 11, s, DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
}
}
if (total > 1000000000L) { /* Reset total time counters at 1 billion */
for (i = 0; i < 7; i++) {
TaskUserData[i].TaskTotExecTime = 0L;
}
}
}
/*
*********************************************************************************************************
* TASK SWITCH HOOK
*********************************************************************************************************
*/
void OSTaskSwHook (void)
{
INT16U time;
TASK_USER_DATA *puser;
time = PC_ElapsedStop(); /* This task is done */
PC_ElapsedStart(); /* Start for next task */
puser = OSTCBCur->OSTCBExtPtr; /* Point to used data */
if (puser != (TASK_USER_DATA *)0) {
puser->TaskCtr++; /* Increment task counter */
puser->TaskExecTime = time; /* Update the task's execution time */
puser->TaskTotExecTime += time; /* Update the task's total execution time */
}
}
/*
*********************************************************************************************************
* OSTCBInit() HOOK
*********************************************************************************************************
*/
void OSTCBInitHook (OS_TCB *ptcb)
{
ptcb = ptcb; /* Prevent Compiler warning */
}
/*
*********************************************************************************************************
* TICK HOOK
*********************************************************************************************************
*/
void OSTimeTickHook (void)
{
}