main.c

包含s3c2440几乎所有测试程序代码

#include "2440addr.h"
#include "2440lib.h"

void xmain(void)
{
	ChangeClockDivider(3,1);   //设置时钟分频比1:3:6
	ChangeMPllValue(127,2,1);  //设置主时钟频405MHZ
	Port_Init();  //端口初始化
	Isr_Init();   //中断初始化
	Uart_Init(0, 115200); //串口初始化
	Uart_Select(0);
	Uart_Printf("the main is running\n");
	
	rGPFCON=(rGPFCON|0xFF00)&0x55FF;//GPF4--GPF7设置为output
    rGPFUP|=0xF0;   //disable GPF pull up
   while(1)
    {
      
       rGPFDAT=(rGPFDAT&0x0F)|0xE0;//GPF4 output 0
       Delay(9900000);//delay
       
       rGPFDAT=(rGPFDAT&0x0F)|0xD0;//GPF5 output 0
       Delay(9900000);//delay
       
       rGPFDAT=(rGPFDAT&0x0F)|0x70;//GPF7 output 0
       Delay(9900000);//delay
       
       rGPFDAT=(rGPFDAT&0x0F)|0xB0;//GPF6 output 0
       Delay(9900000);//delay
    }
 }