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UART 的代码
uart.tf
/*******************************************************************
*
* DESCRIPTION: UART test-fixture
*
* AUTHOR: Thomas Oelsner
*
* HISTORY: 10/04/96,
*
* DESCRIPTION:
uart.h
#ifndef _UART_h_
#define _UART_h_
#define FREQ_OSC 1000000L //定义系统时钟频率
#define BAUD 9600L //定义波特率
#define SPEED _high_
#if SPEED == _high_
#define UBRR_COUNT FREQ_OSC/8L/BAUD - 1
uart.c
#define ENABLE_BIT_DEFINITIONS
#include
#include "UART.h"
#define FRAMING_ERROR (1
uart.h
char getc(void);
void sendc(char);
void uart_send(char*);
void uart_receive(char *);
char do_getc(unsigned long int ,int *);
void uart_send_ii(int , char **);
uart.c
#include "2410addr.h"
#include "uart.h"
void uart_send(char *wrbuf)
{int i;
char *p;
p=wrbuf;
while(*p!='\0')
{while(!(rUTRSTAT0&0x02));
rUTXH0=*(p++);
for(i=0;i
uart.h
void SendChar(char c);//发送字符子程序
void SendString(char *str);//发送字符串子程序
char GetChar(void);
uart.lst
1 .file "uart.c"
2 .arch atmega64
3 __SREG__ = 0x3f
4 __SP_H__ = 0x3e
5 __SP_L__ = 0x3d
6
uart.c
#include "includes.h"
void SendChar(char c)//发送一个字符
{
while(!(UCSR0A & (1