www.pudn.com > armmousecouter.rar > Main.c

/**************************************************************************** 
 * file name	: main.c 
 * By 			: hugang, hgx2000@mail.china.com 
****************************************************************************/ 
 
#include  
#include  
#include  
#include "../inc/option.h" 
#include "../inc/44b.h" 
#include "../inc/44blib.h" 
#include "../inc/def.h" 
#include "../ps2/ps2.h" 
 
volatile char which_int=0; 
unsigned int SERIAL_BAUD = 57600; 
 
__irq void EInt4567Isr(void) 
{ 
    which_int = rEXTINTPND; 
    rEXTINTPND = 0xf;							//clear EXTINTPND reg.		 
    rI_ISPC |= BIT_EINT4567;					//clear pending_bit 
 
	ps2_interrupt(); 
} 
 
/**************************************************************************** 
【功能说明】中断初始化 
****************************************************************************/ 
void Isr_Init(void) 
{ 
    rINTCON = 0x1;								//中断控制寄存器设置 
    rINTMOD=0x0;	  							// All=IRQ mode 
  
    pISR_EINT4567= (unsigned) EInt4567Isr; 
    rPCONG = (rPCONG&(~(0xf<<12))) | (0xc<<12); 
    rPUPG |= 0x3f; 
 	rEXTINT = (rEXTINT&(~(0x7<<28))) | (0x2<<28); 
  
    rINTMSK=~(BIT_GLOBAL | BIT_EINT4567);		//中断有效 
} 
 
 
/**************************************************************************** 
【功能说明】系统主函数 
****************************************************************************/ 
void Main(void) 
{	 
	unsigned int ps2ack; 
 
    rSYSCFG=SYSCFG_8KB;		//使用8K字节的指令缓存 
	rNCACHBE0=((unsigned int)(Non_Cache_End>>12)<<16)|(Non_Cache_Start>>12);  
    //在上面的数据区域不使用高速缓存 
 
	Port_Init();		//IO端口功能、方向设定 
	Led_Disp();		//LED来回闪烁显示  
	ChangePllValue(56,2,1);		//修改系统主频为8倍频 
	Uart_Init(0,SERIAL_BAUD);		//异步串行口初始化，设置波特率为115200 
	Delay(0); 
	Isr_Init();		//中断初始化 
 
	ps2_command(0xff); 
	ps2_waitack(1, &ps2ack); 
	if((ps2ack&0xff)==0xfa) 
		Uart_Printf("PS2 reset ok\n"); 
	else 
		Uart_Printf("PS2 reset error\n"); 
	ps2_command(0xf2); 
	ps2_waitack(3, &ps2ack); 
	if((ps2ack&0xffff)==0xab83) 
		Uart_Printf("Find PS2 Keyboard\n"); 
	else 
		Uart_Printf("Unkonwn PS2 device id : %x\n", ps2ack); 
 
	while(1) 
	{ 
		ps2_buffer_check();	 
	} 
} 
//***************************************************************************