target.c

ucos ii串口通讯程序

/***************************************************************************\
	Copyright (c) 2004-2007 [e-mail], All rights reserved.
	by threewter	2004.12.30
\***************************************************************************/
/***************************************************************************\
    #说明: 目标板初始化函数
	----------------------------------  Bug  --------------------------------------

	----------------------------------  TODO list  --------------------------------------

	----------------------------------修正--------------------------------------
	2004-12-30	创建

\***************************************************************************/

#include "inc/drivers.h"

/*********************************************************************************************************
** 函数名称: TargetResetInit
** 功能描述: 调用main函数前目标板初始化代码，根据需要改变，不能删除
** 输　入: 无
**
** 输　出: 无
**         
** 全局变量: 无
** 调用模块: 无
**
** 作　者: 陈明计
** 日　期: 2004年2月2日
**-------------------------------------------------------------------------------------------------------
** 修改人:
** 日　期:
**-------------------------------------------------------------------------------------------------------
********************************************************************************************************/
        void TargetResetInit(void)
{
    MEMMAP = 0x1;                   //not remap

    PINSEL0 = (PINSEL0 & 0xFFFF0000) | 0x05 | 0x50;

/* 设置系统各部分时钟 */
    PLLCON = 1;
#if (Fpclk / (Fcclk / 4)) == 1
    VPBDIV = 0;
#endif
#if (Fpclk / (Fcclk / 4)) == 2
    VPBDIV = 2;
#endif
#if (Fpclk / (Fcclk / 4)) == 4
    VPBDIV = 1;
#endif

#if (Fcco / Fcclk) == 2
    PLLCFG = ((Fcclk / Fosc) - 1) | (0 << 5);
#endif
#if (Fcco / Fcclk) == 4
    PLLCFG = ((Fcclk / Fosc) - 1) | (1 << 5);
#endif
#if (Fcco / Fcclk) == 8
    PLLCFG = ((Fcclk / Fosc) - 1) | (2 << 5);
#endif
#if (Fcco / Fcclk) == 16
    PLLCFG = ((Fcclk / Fosc) - 1) | (3 << 5);
#endif

    PLLFEED = 0xaa;
    PLLFEED = 0x55;
    while((PLLSTAT & (1 << 10)) == 0);
    PLLCON = 3;
    PLLFEED = 0xaa;
    PLLFEED = 0x55;

/* 设置存储器加速模块 */
    MAMCR = 0;
#if Fcclk < 20000000
    MAMTIM = 1;
#else
#if Fcclk < 40000000
    MAMTIM = 2;
#else
    MAMTIM = 3;
#endif
#endif
    MAMCR = 2;

/* 设置实时时钟 */
    CCR = 1;
    PREINT = Fpclk / 32768 - 1;
    PREFRAC = Fpclk - (Fpclk / 32768) * 32768;
    YEAR = 2005;
    MONTH = 12;
    DOM = 30;
    
//    T0IR = 0xffffffff;
//    T0TCR = 0X02;
}