TIMSK = ( 1 << TOIE0 ); /* Overflow enabled for TIMER_0*/
}
/*******************************************************************
@Fn: ConfigTimerSystem()
@Br: Configuration of output port
@Pa: None
@Rt: None
*******************************************************************/
void ConfigParallelPort( void ){
PORTB = 0xFE; /*Set of all*/
DDRB = 0xFF; /*Set to output mode of all*/
}
/*******************************************************************
@Fn: TransmitData()
@Br: Send a fram onto serial-bus
@Pa: ucpDataAddress: Point of data buffer
ucLength: Length of data
@Rt: None
*******************************************************************/
void TransmitData( uchar *ucpDataAddress, uchar ucLength ){
while( ucLength )
{
while(!( UCSRA & ( 1 << UDRE )));
UDR = *ucpDataAddress++;
ucLength--;
}
}
/*******************************************************************
@Fn: ExchangeBaudRate()
@Br: Exchange values for modify baud rate
@Pa: ucpChar: Character value
@Rt: None
*******************************************************************/
void ExchangeBaudRate( uchar *ucpChar ){
UCSRB &= ~( 1 << RXCIE ) | ( 1 << TXEN ) | ( 1 << RXEN );
UBRRL = *ucpChar++;
UBRRH = *ucpChar++;
UCSRB = ( 1 << RXCIE ) | ( 1 << TXEN ) | ( 1 << RXEN );
}
/*******************************************************************
@Fn: Judge()
@Br: Judge baud rate according to the received data
@Pa: ucpCharacter: Pointer of received data buffer
@Rt: 1:Right 0:Error
*******************************************************************/
uchar Judge( uchar *ucpCharacter ){
if(( *ucpCharacter++ != CHAR0 ) || ( *ucpCharacter++ != CHAR1 )) return FAILURE;
else
return SUCCESS;
}
/* File name: INTERRUPTS.H */
＃i nclude <iom8.h>
＃i nclude "includes.h"
＃i nclude "CONSTANTS.H"
＃i nclude "FUNCTIONS.H"
＃i nclude "GLOBALS.H"
/*******************************************************************
@Fn: T0OVERFLOW_Handler
@Br: Service of Timer_0 interrupt
@Pa: None
@Rt: None
*******************************************************************/
#pragma vector = TIMER0_OVF_vect
__interrupt void T0OVERFLOW_Handler( void ){
TCNT0 = 0;
}
/*******************************************************************
@Fn: USART_RX
@Br: Service of USART interrupt
@Pa: None
@Rt: None
*******************************************************************/
#pragma vector = USART_RXC_vect
__interrupt void USART_RX( void ){
ucCommunicatorBuffer[ ucReceiveCounter++ ] = UDR;
if( !( ucStatusProgram & bSET_BAUD ))
{
if ( ucReceiveCounter > 1 )
{
ucReceiveCounter = 0;
uiTenor |= bRECEIVED;
}
}
else
{
if( ucReceiveCounter > 2 )
{
if( ucReceiveCounter >= ucCommunicatorBuffer[1] )
{
ucReceiveCounter = 0;
uiTenor |= bRECEIVED;
}
}
}
}
#ifndef CONSTANTS_H
#define CONSTANTS_H
/****** System Macro **********************************************************/
#define _EI() SREG|=0X80
#define _DI() SREG&=~0X80
#define SLEEP() MCUCR|=(1<<SE);asm("sleep")
/****** Status Macro **********************************************************/
#define bSET_BAUD 0x01
/****** Tenor Macro ***********************************************************/
#define bRECEIVED 0x01
/****** Application Macro *****************************************************/
#define INDICATE PB0
#define CHAR0 0xAA
#define CHAR1 0x55
#endif
#ifndef FUNCTIONS_H
#define FUNCTIONS_H
/****** Main.c ****************************************************************/
void InitialSystem( void );
void Delay_mS( uint uiMS );
void ConfigSerialPort( void );
void ConfigTimerSystem( void );
void ConfigParallelPort( void );
void TransmitData( uchar *ucpDataAddress, uchar ucLength );
void ExchangeBaudRate( uchar *ucpChar );
uchar Judge( uchar *ucpCharacter );
#endif
#ifndef VERIABLES_H
#define VERIABLES_H
uchar ucReceiveCounter;
uchar ucCommunicatorBuffer[64];
uint uiTenor;
uchar ucStatusProgram;
uchar ucSearch;
#endif
#ifndef GLOBALS_H
#define GLOBALS_H
extern uchar ucReceiveCounter;
extern uchar ucCommunicatorBuffer[64];
extern uint uiTenor;
extern uchar ucStatusProgram;
extern uchar ucSearch;
#endif
#ifndef INCLUDES_H
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本文关键字：波特率 软件包 AVR单片机，单片机-工控设备 - AVR单片机
