44btest.c

一个简单的helloworld编程

#include <string.h>
#include "..\inc\option.h"
#include "..\inc\44b.h"
#include "..\inc\44blib.h"
#include "..\inc\def.h"
#include "..\inc\cache.h"
#include "..\inc\uart.h"
#include "..\inc\power.h"
#include "..\inc\dma.h"
#include "..\inc\timer.h"
#include "..\inc\rtc.h"
#include "..\inc\etc.h"
#include "..\inc\iic.h"
#include "..\inc\stop.h"
#include "..\inc\extdma.h"
#include "..\inc\tp.h"
#include "..\inc\usb.h"
#include "..\inc\kb.h"
#include "..\inc\Pwm.h"
#include "..\inc\led.h"

void Isr_Init(void);
void HaltUndef(void);
void HaltSwi(void);
void HaltPabort(void);      
void HaltDabort(void);


//****************************************************************
// *		  S3C44B0X developer's notes			*  
// ****************************************************************


    void Main(void)
{
rSYSCFG=CACHECFG; //设置44B0X的cache,当显示大量的字符时超级终端会比较流畅
//__rt_lib_init(); //for ADS 1.0
Port_Init(); //初始化端口
Isr_Init(); //中断初始化
Uart_Init(0,115200); //串口初始化
Uart_Select(0); //选择 Uart 0
Delay(0); //校准延时
Uart_Printf("\n Hello world!"); //串口打印信息
Uart_Printf("\n\nS3C44B0X Test Program cache config rSYSCFG=0x%xclock=%d\n\n",rSYSCFG,MCLK);
Uart_Printf("\n\n Program end successfully.");
while (1)
{
Uart_Printf("\\\b");
Delay(900);
Uart_Printf("|\b");
Delay(900);
Uart_Printf("/\b");
Delay(900);
Uart_Printf("-\b");
}
}
void Isr_Init(void)
{
    U32 i;
    
    pISR_UNDEF=(unsigned)HaltUndef;
    pISR_SWI  =(unsigned)HaltSwi;
    pISR_PABORT=(unsigned)HaltPabort;
    pISR_DABORT=(unsigned)HaltDabort;
    
     for(i=_RAM_STARTADDRESS;i<(_RAM_STARTADDRESS+0x20);i+=4)
    {
	*((volatile unsigned *)i)=0xEA000000+0x1FFE;
    }

    //rINTCON=0x1;	  // Vectored Int. IRQ enable,FIQ disable    
    rINTCON=0x5;	  // Non-vectored,IRQ enable,FIQ disable    

    rINTMOD=0x0;	  // All=IRQ mode
    rINTMSK|=BIT_GLOBAL|BIT_EINT3;	  // All interrupt is masked.
}


void HaltUndef(void)
{
    Uart_Printf("Undefined instruction exception!!!\n");
    while(1);
}

void HaltSwi(void)
{
    Uart_Printf("SWI exception!!!\n");
    while(1);
}

void HaltPabort(void)
{
    Uart_Printf("Pabort exception!!!\n");
    while(1);
}

void HaltDabort(void)
{
    Uart_Printf("Dabort exception!!!\n");
    while(1);
}