/*串口通信模塊,使用之前,應(yīng)該在Main 函數(shù)中對串口進(jìn)行初始化，
串口數(shù)據(jù)接收方式采用中斷進(jìn)行，振蕩頻率修正參數(shù)不在EEPROM的
0x1ff0中,使用PonyProg可以測試得OSCCAL=0xA1*/
#include <iom8v.h>
#include <macros.h>

extern void rom_write(unsigned int Address,unsigned char Data);
extern unsigned rom_read(unsigned int Address);

#define fosc 8000000 //晶振8MHZ
#define baud 19200	 //波特率
//使用中斷方式接收UART的輸入字符
#pragma interrupt_handler UartGet:12

unsigned char charInput=0x00;
void UartGet(void)
 {
 	static char cAddr=0;
 	charInput=UDR;
 	if(charInput=='c')
 		cAddr++;
 		rom_write(cAddr,OSCCAL);
 }
	 
void putchar(unsigned char c)/*  		字符輸出函數(shù) 		 */
	 {while (!(UCSRA&(1<<UDRE)));
	  UDR=c;}	
unsigned char getchar(void)/*  	字符輸入函數(shù)－查詢方式 */
  	{
	 while(!(UCSRA& (1<<RXC)));
     return UDR;
	}
/*			字符串輸出函數(shù)	   	 */	
int puts(char *s)
	{
	while (*s)
		{
		putchar(*s);
		s++;
		}	
	return 1;
	}
void uart_init(void)
{
 UCSRB=(1<<RXCIE)|(1<<RXEN)|(1<<TXEN);//允許接收中斷、發(fā)送和接收
 /*UBRRL=(fosc/16/(baud+1))%256;
 UBRRH=((fosc/16/(baud+1))/256)&0b01111111;*/
 UBRRL=(fosc/16/baud-1)%256;
 UBRRH=((fosc/16/baud-1)/256)&0b01111111;
 UCSRC=(1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0);//8位數(shù)據(jù)+1位STOP位
 //SEI();由MAIN函數(shù)統(tǒng)一開放全局中斷
}