avr.rar_AVR 串口_AVR串口_avr_delphi avr

＃i nclude <mega32.h> ＃i nclude <delay.h> ＃i nclude <stdio.h> #define uchar unsigned char // 0~255 #define uint unsigned int // 0~65535 #define _SPK PORTB.2 #define _LED PORTB.3 #define CLI() #asm("cli") #define SEI() #asm("sei") /**//* UCSRA */ #define RXC 7 #define TXC 6 #define UDRE 5 #define FE 4 #define DOR 3 #define PE 2 #define U2X 1 #define MPCM 0 /**//* UCSRB */ #define RXCIE 7 #define TXCIE 6 #define UDRIE 5 #define RXEN 4 #define TXEN 3 #define UCSZ2 2 #define RXB8 1 #define TXB8 0 /**//* UCSRC */ #define URSEL 7 #define UMSEL 6 #define UPM1 5 #define UPM0 4 #define USBS 3 #define UCSZ1 2 #define UCSZ0 1 #define UCPOL 0 //============================================================================= // 初始化，闪亮LED //============================================================================= void initport(void) { uchar i; DDRB = 0xFF; PORTB = 0xFF; for(i=0; i<20; i++) { _LED = ~_LED; delay_ms(100); } _SPK = 0; delay_ms(500); _SPK = 1; } #define BAUDRATE 9600 #define F_CPU 8000000 void init_USART(void)//USART 初始化 { //USART 9600 8, n,1 PC上位机软件(超级终端等)也要设成同样的设置才能通讯 UCSRC = (1<<URSEL) | 0x06; //异步，8位数据，无奇偶校验，一个停止位，无倍速 UBRRL= (F_CPU/BAUDRATE/16-1)%256; UBRRH= (F_CPU/BAUDRATE/16-1)/256; UCSRA = 0x00; // UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN); //使能接收中断，使能接收，使能发送 UCSRB = (1<<TXEN); // 使能发送 } void put_c(unsigned char c) //发送采用查询方式 { while( !(UCSRA & (1<<UDRE)) ); UDR="c"; } void put_s(unsigned char *ptr) { while (*ptr) ...{ put_c(*ptr++); } put_c(0x0D); put_c(0x0A); //结尾发送回车换行 }