虽然只有三个任务，除任务调度，其他功能全部关闭。
/*
**************************************************************************************************************
* uC/OS-II
* The Real-Time Kernel
*
*
* AVR Sample code
* File : TEST.C
* By : Ole Saether
* Version : V1.01
*
* 2004-05-23 modified by Zhang Yunfeng (yfzhang@ele.pku.edu.cn)
*
* AVR-GCC port version : 1.0 2001-04-02 modified/ported to avr-gcc by Jesper Hansen (jesperh@telia.com)
*
* 2003-06-27 Modification to gcc v. 3.x and uC/OS-II v 2.52 by Julius Luukko (Julius.Luukko@lut.fi).
* See the file README for details of the changes.
*
*
* Description :
*
* This file contains a simple example program showing how to use the AVR port of uC/OS-II. It is
* based on Example #1 from Jean Labrosse's book "MicroC/OS-II, The Real Time Kernel." The main
* difference is that this example does not display the time of day and the uC/OS-II version number.
* You must have the AVR UART connected to a VT102 compatible terminal (HyperTerminal in Windows is OK)
* to get the most out of this example.
*
* The support routines at the end of this file are included only to make this example run; they should
* not be used in production code without careful testing.
**************************************************************************************************************
*/
#include "includes.h"
/*
**************************************************************************************************************
* CONSTANTS
**************************************************************************************************************
*/
#define CPU_CLOCK_HZ 7372800 //7.3728Mhz /* 3686400 3.6864Mhz */
#define UART_BAUD_RATE 115200 /* 9600 baud */
#define UART_BAUD_SELECT (CPU_CLOCK_HZ/(UART_BAUD_RATE*16l)-1)
#define TASK_STK_SIZE OS_TASK_DEF_STK_SIZE /* Size of each task's stacks (# of bytes) */
#define N_TASKS 2 /* Number of identical tasks */
/* #define UART_TX_BUF_SIZE 512 */
//#define UART_TX_BUF_SIZE 256
#define S1_XBUFLEN 512
#define S1_RBUFLEN 32
#define S1_DATA UDR1
#define MSG_QUEUE_SIZE 20
/*
**************************************************************************************************************
* VARIABLES
**************************************************************************************************************
*/
OS_STK TaskStk1[TASK_STK_SIZE]; //Task1 stacks
OS_STK TaskStk2[TASK_STK_SIZE]; //Task1 stacks
OS_STK TaskStartStk[TASK_STK_SIZE];
char TaskData[N_TASKS]; /* Parameters to pass to each task */
static volatile INT8U S1_xbuf[S1_XBUFLEN]; /* UART transmit buffer */
static volatile INT16U S1_xpos; /* UART transmit buffer read pointer */
static volatile INT16U S1_xcnt; /* Number of characters to send */
static volatile INT8U S0_rbuf[S1_RBUFLEN]; /* UART receive buffer */
static volatile INT16U S1_rpos; /* UART receive buffer read pointer */
static volatile INT16U S1_rcnt; /* Number of characters for read */
//&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
//我添加的变量
unsigned char test_** =0;
//&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
/*
**************************************************************************************************************
* FUNCTION PROTOTYPES
**************************************************************************************************************
*/
//$$$$$$$$$$$$$$$$$$$$$$$$$$$
//我的函数
//$$$$$$$$$$$$$$$$$$$$$$$$$$$$
void Task1(void *data); /* Function prototypes of tasks */
void Task2(void *data);
void TaskStart(void *data); /* Function prototypes of Startup task */
void PutChar(char c); /* Write a character to the AVR UART */
void AvrInit(void); /* Initialize AVR */
/*
**************************************************************************************************************
* MAIN
**************************************************************************************************************
*/
int main (void)
{
AvrInit(); /* Initialize the AVR UART and Timer */
OSInit();
OSTaskCreate(TaskStart, (void *)0, (void *)&TaskStartStk[TASK_STK_SIZE - 1], 0);
OSStart(); /* Start multitasking */
return 0;
}
/*
**************************************************************************************************************
* STARTUP TASK
**************************************************************************************************************
*/
void TaskStart (void *data)
{
data = data; /* Prevent compiler warning */
unsigned char lingt_f = 0;
OS_ENTER_CRITICAL();
/* TCCR0=0x05; /\* on some processors other than mega128 *\/ */
TCCR0=0x07; /* Set TIMER0 prescaler to CLK/1024 */
TIMSK=_BV(TOIE0); //T0溢出中断允许 /* Enable TIMER0 overflow interrupt */
TCNT0=256-(CPU_CLOCK_HZ/OS_TICKS_PER_SEC/1024); /* Set the counter initial value */
OS_EXIT_CRITICAL();
OSStatInit(); /* Initialize uC/OS-II's statistics */
OSTaskCreate(Task1, (void *)0, (void *)&TaskStk1[TASK_STK_SIZE - 1],2);
OSTaskCreate(Task2, (void *)0, (void *)&TaskStk2[TASK_STK_SIZE - 1],4);
while(1)
{
// lingt_f=(~lingt_f);
// PORTF = lingt_f;
/*
if(lingt_f == 0)
{
PORTF |= 0x02;
// PORTF &= 0xfd;
lingt_f = 1;
}
if(lingt_f == 1)
{
// PORTF |= 0x02;
PORTF &= 0xfd;
lingt_f = 0;
}
*/
OSCtxSwCtr = 0;
OSTimeDlyHMSM(0, 0, 2, 0); /* Wait one second */
}
}
/*
**************************************************************************************************************
* TASKS
**************************************************************************************************************
*/
void Task1 (void *data)
{
INT8U err;
unsigned char lingt_f1 = 0;
// PORTF &= 0xf7;
for (;;)
{
// lingt_f1=(~lingt_f1);
// PORTF = lingt_f1;
/*
if(lingt_f1 == 0)
{
PORTF |= 0x08;
// PORTF &= 0xfd;
lingt_f1 = 1;
}
if(lingt_f1 == 1)
{
// PORTF |= 0x02;
PORTF &= 0xf7;
lingt_f1 = 0;
}
*/
OSTimeDly(100); /* Delay 6 clock ticks */
}
}
//@@@@@@@@@@@@@@
void Task2 (void *data)
{
INT8U err;
unsigned char lingt_f2 = 0;
// PORTF &= 0x7f;
for (;;)
{
lingt_f2=(~lingt_f2);
PORTF = lingt_f2;
/*
if(lingt_f2 == 0)
{
PORTF |= 0x80;
// PORTF &= 0xfd;
lingt_f2 = 1;
}
if(lingt_f2 == 1)
{
// PORTF |= 0x02;
PORTF &= 0x7f;
lingt_f2 = 0;
}
*/
OSTimeDly(10); /* Delay 6 clock ticks */
}
}
//@@@@@@@@@@@@@@@@
void AvrInit (void)
{
//#######################################
MCUCR=0x00; //###zkq modif
SREG|=0x80; //全局中断允许
//##############
DDRF = 0xff;
PORTF = 0xff;
}
//===================================================================================
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