target.c

Small RTOS 移植到AVR下用IAR编译的

/****************************************Copyright (c)**************************************************
**                               Guangzou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File name:			target.cpp
** Last modified Date:	2004-09-17
** Last Version:		1.0
** Descriptions:		header file of the specific codes for LPC2200 target boards
**						Every project should include a copy of this file, user may modify it as needed
**------------------------------------------------------------------------------------------------------
** Created by:			Chenmingji
** Created date:		2004-02-02
** Version:				1.0
** Descriptions:		The original version
**
**------------------------------------------------------------------------------------------------------
** Modified by:			Chenmingji
** Modified date:		2004-09-17
** Version:				1.01
** Descriptions:		Renewed the template, added more compiler supports
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:	
** Descriptions:
**
********************************************************************************************************/

#define IN_TARGET
#include "includes.h"

/*********************************************************************************************************
** Function name:			Timer0_Exception
**
** Descriptions:			Timer0 interrupt service function
**
** input parameters:		None
** Returned value:			None
**
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
#pragma vector=TIMER0_OVF_vect		// 定时器0溢出中断入口地址
__interrupt void Timer0_OVF(void)	// 30mS中断一次
{
  	TCNT0=0x16;
	OSTimeTick();    	
}

/*********************************************************************************************************
** Function name:			Timer0Init
**
** Descriptions:			Initialize the Time0
**
** input parameters:		None
** Returned value:			None
**
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void Timer0Init(void)
{
 	TCCR0 = 0x00; 	
 	TCNT0 = 0x16; 	
 	OCR0  = 0xFA;  	
 	TCCR0 = 0x05; 	
    TIMSK |= 0x01;
 }

/*********************************************************************************************************
** Function name:			TargetInit
**
** Descriptions:			Initialize the target board; it is called in a necessary place, change it as
**							needed
**
** input parameters:		None
** Returned value:			None
**
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void TargetInit(void)
{
    OS_CPU_SR cpu_sr = 0;
	
	OS_ENTER_CRITICAL();
    Timer0Init();
    OS_EXIT_CRITICAL();
}


/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/