charh.h

超精典C语言字符处理程序(单片机低层代码)

//***************字符处理****************//(已测)
/********************************************************
**************this file include funtion******************
*void TxRomUart(const unsigned char *data,unsigned int leng)
*void TxRamUart(unsigned char *data,unsigned int leng)
*unsigned char CopyRom(const unsigned char *data1,unsigned char leng1,unsigned char *data2,unsigned char leng2)
*unsigned char CopyRam(unsigned char *data1,unsigned char leng1,unsigned char *data2,unsigned char leng2)
*unsigned char CmpsRom(unsigned char *data1,unsigned char leng1,const unsigned char *data2,unsigned char leng2)
*unsigned char CmpsRam(unsigned char *data1,unsigned char leng1,unsigned char *data2,unsigned char leng2)
********************************************************/
//********************************************************发送ROM数据到串口31//
void TxRomUart(const unsigned char *data,unsigned int leng)
    {
	while(leng)
	  {
	  while(!((UCSRA)&(1<<UDRE)));
	  UDR=*data;data++;leng--;
	  }  
	}  	
//********************************************************发送RAM数据到串口32//
void TxRamUart(unsigned char *data,unsigned int leng)
    {
	while(leng)
	  {
	  while(!((UCSRA)&(1<<UDRE)));
	  UDR=*data;data++;leng--;
	  }  
	}  					
//**************************************************************拷贝ROM数据33//
unsigned char CopyRom(const unsigned char *data1,unsigned char leng1,unsigned char *data2,unsigned char leng2)
    {
    while(leng1)
	  { 
	  *data2=*data1;data2++;leng2--;data1++;leng1--;
	  if(!leng2) return 1;
	  }
	return 0;
	}  	
//**************************************************************拷贝RAM数据34//
unsigned char CopyRam(unsigned char *data1,unsigned char leng1,unsigned char *data2,unsigned char leng2)
    {
    while(leng1)
	  { 
	  *data2=*data1;data2++;leng2--;data1++;leng1--;
	  if(!leng2) return 1;
	  }
	return 0;
	} 
//**************************************************************比较ROM数据35//
unsigned char CmpsRom(unsigned char *data1,unsigned char leng1,const unsigned char *data2,unsigned char leng2)
    {
	while(leng1)
	  {
	  if(*data1!=*data2) return 1;
	  data1++;data2++;leng1--;leng2--;
	  if(!leng2) return 0;
	  }
	return 1;  
	}	   
//**************************************************************比较RAM数据36//
unsigned char CmpsRam(unsigned char *data1,unsigned char leng1,unsigned char *data2,unsigned char leng2)
    {
	while(leng1)
	  {
	  if(*data1!=*data2) return 1;
	  data1++;data2++;leng1--;leng2--;
	  if(!leng2) return 0;
	  }
	return 1;  
	}