#include "2440lib.h"
#include "2440addr.h"
int flag = 0;
static int UartNum=0;
//===============================================================
//对Uart进行初始化，以所需要的波特率为输入参数
void myUart_Init(int whichuart, int baud)
{
if(whichuart==0)
{
UartNum=0;
rGPHCON = rGPHCON & (~(0xffff)) ;
rGPHCON = rGPHCON | (0xaaa0) ;
rGPHUP = 0x0; // The pull up function is enable
rUFCON0=0x00; //不使用FIFO
rUMCON0=0x00; //不使用自动流控制
rULCON0=0x03; //不采用红外线传输模式，无奇偶校验位，1个停止位，8个数据位
rUCON0=0x245; //发送中断为电平方式，接收中断为边沿方式，禁止超时中断，允许产生错误状态中断，禁止回送模式，禁止中止 //信号，传输模式为中断请求模式，接收模式也为中断请求模式。
rUBRDIV0=( (int)(PCLK/16./baud+0.5) -1 );
Delay(10);
}
else if(whichuart==1)
{
UartNum=1;
rGPHCON = rGPHCON & (~(0xffff)) ;
rGPHCON = rGPHCON | (0xaaa0) ;
rGPHUP = 0x0; // The pull up function is enable
rUFCON1=0x0;
rUMCON1=0x0;
rULCON1=0x3;
rUCON1=0x245;
rUBRDIV0=( (int)(PCLK/16./baud+0.5) -1 );
Delay(10);
}
}
/*******************************************************************/
void myUart_SendByte(char ch)
{
if (UartNum ==0)
{
if(ch=='\n')
{
while(!(rUTRSTAT0 & 0x2));//等待，直到发送缓冲区为空
//Delay(10); //超级中端的响应速度较慢
WrUTXH0('\r');//发送回车符
}
while(!(rUTRSTAT0 & 0x2)); //等待，直到发送缓冲区为空
Delay(100);
WrUTXH0(ch);//发送字符
}
else
{
if(ch=='\n')
{
while(!(rUTRSTAT1 & 0x2));
Delay(100); //because the slow response of hyper_terminal
rUTXH1='\r';
}
while(!(rUTRSTAT1 & 0x2)); //Wait until THR is empty.
Delay(100);
WrUTXH1(ch);
}
}
//====================================================================
void myUart_Send (char *str)
{
myUart_Init(0,115200);
while (*str)
myUart_SendByte(*str++);
}
/********************************************************************/
char myUart_ReceiveByte(void)
{
if(UartNum==0)
{
while(!(rUTRSTAT0 & 0x1)); //Receive data ready
return RdURXH0();
}
else if(UartNum==1)
{
while(!(rUTRSTAT1 & 0x1)); //Receive data ready
return RdURXH1();
}
return 0;
}
//===================================================================
void myUart_receive(char *string)
{
char *string2 = string;
char c;
int i = 0;
myUart_Init(0,115200);
while((c = myUart_ReceiveByte())!='\r')
{
if(c=='\b')
{
if( (int)string2 < (int)string )
{
Uart_Printf("\b \b");
string--;
}
}
else
{
*(string + i) = c;
i++;
myUart_SendByte(c);
}
}
*(string+i)='\0';
myUart_SendByte('\n');
}
void __irq eint_handler(void)
{
rSRCPND |= (0x1<<5);
rINTPND |= (0x1<<5);//申请 请求 EINT8_23
// rEINTPEND |= (0x1<<8);//EINT8 发生中断
if ( rEINTPEND & (0x1<<8))
{
flag = 8;
rEINTPEND |= (0x1<<8);
}
if ( rEINTPEND & (0x1<<11))
{
flag = 11;
rEINTPEND |= (0x1<<11);
}
if ( rEINTPEND & (0x1<<13))
{
flag = 13;
rEINTPEND |= (0x1<<13);
}
if ( rEINTPEND & (0x1<<14))
{
flag = 14;
rEINTPEND |= (0x1<<14);
}
if ( rEINTPEND & (0x1<<15))
{
flag = 15;
rEINTPEND |= (0x1<<15);
}
if ( rEINTPEND & (0x1<<19))
{
flag = 19;
rEINTPEND |= (0x1<<19);
}
}
void delay(unsigned long ms)
{
unsigned long i,j;
for (i=0;i
for (j=0;j<100000;j++);
}
void timmer_init(void)
{
rTCFG0 &= 0xFF00FF;
rTCFG0 |= 0xf900; //prescaler 等于249 PCLK ÷ (prescaler+1) ÷ divider diveder=8 prescaler=249 定时器输出为25KHZ
rTCFG1 &= ~0xF0000;
rTCFG1 |= 0x20000l; //divider等于8，则设置定时器4的时钟频率为25kHz
rTCNTB4 = 12500; //让定时器4每隔0.5秒中断一次
rTCON &= ~0xF00000;
rTCON |= 0x700000;
rTCON &= ~0x200000; //定时器4开始工作
}
void __irq timmer4(void)
{
static int count;
count++;
rSRCPND |= (0x1<<14);
rINTPND |= (0x1<<14);
//每 1S 响一次
if (count % 2==0)
{
rGPBDAT &= ~((1<<5));
// rGPBDAT |= ((1<<8));
flag = 1;
}
if (count % 2==1)
{
rGPBDAT |= ((1<<5));
myUart_Send("Please Input a string:\n");
}
if ((count % 4 == 0)&&(flag == 0))
{
rGPBDAT &= ~((1<<8));
}
}
int xmain(void)
{
//char *str;
// char string[255];
unsigned long i;
ChangeClockDivider(3,1);//1:4:8
ChangeMPllValue(127,2,1); //405MHZ
Port_Init();
Isr_Init();
rGPBCON &= ~((0x3<<10)|(0x3<<12)|(0x3<<14)|(0x3<<16)|(0x3<<0));//clear 5 6 7 8 is 00
rGPBCON |= (1<<10)|(1<<12)|(1<<14)|(1<<16)|(0<<1);//set is output
rGPGCON &= ~((0x3<<0)|(0x3<<6)|(0x3<<10)|(0x3<<12)|(0x3<<14)|(0x3<<22));
rGPGCON |= (0x2<<0)|(0x2<<6)|(0x2<<10)|(0x2<<12)|(0x2<<14)|(0x2<<22);//配置 GPG0为EINT8
rGPBDAT |= ((1<<5)|(1<<6)|(1<<7)|(1<<8)|(0<<0));//全部LED灭，BEEP 不响
rGPBDAT &= ~((1<<7));
timmer_init();
// rPRIORITY=0x0;
rSRCPND |= (0x1<<14);
rINTPND |= (0x1<<14);
rINTMSK &= ~(1<<14);
// rINTMSK &= ~((1<<5)|(1<<14));//EINT8_23服务可用 timmer4可用
// rEINTMASK &= ~((1<<8)|(1<<11)|(1<<13)|(1<<14)|(1<<15)|(1<<19));//打开第8个中断
// rEXTINT1 &= ~((0x7<<0)|(0x7<<12)|(0x7<<20)|(0x7<<24)|(0x7<<28));
// rEXTINT1 |= (0x2<<0)|(0x2<<12)|(0x2<<20)|(0x2<<24)|(0x2<<28);//配置为下降沿
// rEXTINT2 &= ~(0x7<<12);
// rEXTINT2 |= (0x2<<12); //EINT19
// rSRCPND |= (0x1<<5)|(0x1<<14);
// rINTPND |= (0x1<<5)|(0x1<<14);//申请 请求 EINT8_23
// rEINTPEND |= (0x1<<8)|(0x1<<11)|(0x1<<13)|(0x1<<14)|(0x1<<14)|(0x1<<15)|(0x1<<19);//EINT8 发生中断
// pISR_EINT8_23 = (U32)eint_handler;
pISR_TIMER4 = (U32)timmer4;
// rGPBDAT &= ~((1<<7));
/* while(1)
{
//flag = 8;
switch (flag)
// if (flag==8)
{ case 8:
flag = 0;
rGPBDAT &= ~((1<<5));
delay(20);
rGPBDAT |= ((1<<5));
delay(20);
break;
case 11:
flag = 0;
rGPBDAT &= ~((1<<6));
delay(20);
rGPBDAT |= ((1<<6));
delay(20);
break;
case 13:
flag = 0;
rGPBDAT &= ~((1<<7));
delay(20);
rGPBDAT |= ((1<<7));
delay(20);
break;
case 14:
flag = 0;
rGPBDAT &= ~((1<<8));
delay(20);
rGPBDAT |= ((1<<8));
delay(20);
break;
case 15:
flag = 0;
rGPBDAT &= ~((1<<8));
delay(40);
rGPBDAT |= ((1<<8));
delay(40);
rGPBDAT &= ~((1<<7));
delay(20);
rGPBDAT |= ((1<<7));
delay(20);
rGPBDAT &= ~((1<<6));
delay(20);
rGPBDAT |= ((1<<6));
delay(20);
rGPBDAT &= ~((1<<5));
delay(20);
rGPBDAT |= ((1<<5));
delay(20);
break;
case 19:
flag = 0;
rGPBDAT &= ~((1<<8));
rGPBDAT &= ~((1<<7));
rGPBDAT &= ~((1<<6));
rGPBDAT &= ~((1<<5));
delay(40);
rGPBDAT |= ((1<<8));
rGPBDAT |= ((1<<7));
rGPBDAT |= ((1<<6));
rGPBDAT |= ((1<<5));
delay(40);
break;
default:
flag = 0 ;
rGPBDAT |= ((1<<8)|(1<<7)|(1<<6)|(1<<5));
break;
} //switch
} //while */
while (1)
{
rGPBDAT &= ~((1<<8));
delay(40);
rGPBDAT |= ((1<<8));
delay(40);
rGPBDAT &= ~((1<<7));
delay(20);
rGPBDAT |= ((1<<7));
delay(20);
rGPBDAT &= ~((1<<6));
delay(20);
rGPBDAT |= ((1<<6));
delay(20);
}
}//main
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