target.c

自己写的小程序包含串口和LCD

#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"
#include "usrdef.h" 

#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>


U32 SYS_HCLK,SYS_FCLK,SYS_PCLK;
extern char Image$$RW$$Limit[];
void *mallocPt=Image$$RW$$Limit;



//extern  int RdURXH0(void);


/*********************************[系统初始化]*********************************/
static int CHANEL=0;
/****[延时子程序]*****/
/*
void Delay(int time)
{
    int i;
    for(i=time;i>0;i--);
}
*/
static int delayLoopCount = 400;
void Delay(int time)
{
      // time=0: adjust the Delay function by WatchDog timer.
      // time>0: the number of loop time
      // resolution of time is 100us.
    int i,adjust=0;
    if(time==0)
    {
        time   = 200;
        adjust = 1;
        delayLoopCount = 400;
            //PCLK/1M,Watch-dog disable,1/64,interrupt disable,reset disable
        rWTCON = ((PCLK/1000000-1)<<8)|(2<<3); 
        rWTDAT = 0xffff;                              //for first update
        rWTCNT = 0xffff;                              //resolution=64us @any PCLK 
        rWTCON = ((PCLK/1000000-1)<<8)|(2<<3)|(1<<5); //Watch-dog timer start
    }
    for(;time>0;time--)
        for(i=0;i<delayLoopCount;i++);
    if(adjust==1)
    {
        rWTCON = ((PCLK/1000000-1)<<8)|(2<<3); //Watch-dog timer stop
        i = 0xffff - rWTCNT;                     //1count->64us, 200*400 cycle runtime = 64*i us
        delayLoopCount = 8000000/(i*64);         //200*400:64*i=1*x:100 -> x=80000*100/(64*i)   
    }
}
/****[端口初始化]****/
void Port_Init(void)
{
   	/**[Port A]**/   //port A as databus
   	rGPACON=0x7ffffff;
   	//rGPADAT
   	
   	/**[Port B]**/
   	rGPBCON=0x44555;
   	//rGPBDAT=     //默认值