ctrl_set.c

来自「s3c2410的烧片程序,用ads编译,可以通过串口或者jtag口烧写」· C语言 代码 · 共 86 行

#include "inc\s3c2410x.h"
#include "DataType.h"

#define	EXT_OSC_CLK	12000000

unsigned int MCLK = 40000000;

void ChangePllValue(int mdiv, int pdiv, int sdiv)
{
	int i = 1;		
	
	rrMPLLCON = (mdiv<<12)|(pdiv<<4)|sdiv;
	
	while(sdiv--)
		i *= 2;	
	
	MCLK = (EXT_OSC_CLK*(mdiv+8))/((pdiv+2)*i);	
	//MCLK= 600000000;
}


/****************************************************************************
【功能说明】IO端口功能、方向设定
****************************************************************************/
void PortInit(void)
{
 rPCONA = 0x01ffff; 
  rPDATA = 0x000000;
  

  
  rPCONB = 0x2aa955;
  rPDATB = 0x000;
  rPUPB  = 0xfff;
  
  
  rPCONC = 0x00005555;     
  rPDATC = 0x0001; 
  rPUPC  = 0x4100;     


  rPCOND= 0x55555555;
  rPDATD= 0x0000; 
  rPUPD = 0xc040;

 
  rPCONE  = 0xaa8002aa;
  rPDATE  = 0x0000; 
  rPUPE =   0xf81f;

  
  rPCONF = 0xaa8a;
  rPDATF = 0x00;  
  rPUPF  = 0xff;

  rPCONG = 0x00b000f0;
  rPDATG = 0x0000;
  rPUPG  = 0x08fb;  


  
  rPCONH= 0x15faaa;
  rPDATH= 0xFFDF;
  rPUPH= 0x7bf; 

  rMISCCR=0x43550;  

  rDCLKCON = 0x7f007f0;

 
  rEXTINT1 = 0x00000444;

  rEXTINT2 = 0x00000000;

  rEXINTFLT2 = 0x00000000;

  rEXINTFLT3 = 0x00000000;

  rEXINTMASK = 0x00fffff0;

  rEXINTPND = 0x00fffff0;

		
}