一些优秀代码 (持续更新中)

typedef enum {FALSE, TRUE} BOOL;

 

#define UART0_BASE (0x7F005000)
#define rULCON0  (*(volatile unsigned *)(UART0_BASE+0x00))

 typedef enum {FALSE, TRUE} BOOL;

#define WrUTXH0(ch)  (*(volatile unsigned char *)(UART0_BASE+0x20))=(unsigned char)(ch)
#define RdURXH0()    (*(volatile unsigned char *)(UART0_BASE+0x24))

#define NF_CMD(cmd)   {rNFCMD=cmd;}
#define NF_ADDR(addr)  {rNFADDR=addr;} 

 

void Port_Init(void)
{
 // GPN[15:12] for LED
 rGPNCON = (rGPNCON & ~(0xff<<24))|(0x55<<24); // GPN[15:12] as output
 rGPNPUD = (rGPNPUD & ~(0xff<<24));    // Pull-Down/Up Disable
}

 

static void Delay(void)
{
 volatile int i;
 for(i=0 ; i < 1000 ; i++)
 { }
}

 

char *hex2char(unsigned int val)
{
    static char str[2];

    str[1]='\0';

    if(val<=9)
        str[0]='0'+val;
    else
        str[0]=('a'+val-10);

    return str;
}

 

 

//避免頭文件被重復包含

#ifndef __UTILS_H__
#define __UTILS_H__

code ...

#endif // __UTILS_H__