复件 uart.h

ARM7芯片EP7312串口驱动源码

/****************************************************************************/
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/* FILE NAME                                   VERSION                      */
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/*      Uart.h                                                              */ 
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/* COMPONENT                                                                */
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/*      UART                                                                */
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/* DESCRIPTION                                                              */
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/*      This file contains constant definitions and                         */
/*      function prototypes for the UART and card reader driver.            */
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/* AUTHOR                                                                   */
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/* DATA STRUCTURES                                                          */
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/*      none                                                                */
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/* HISTORY                                                                  */
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/*         NAME           DATE              REMARKS                         */
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/****************************************************************************/

#ifndef UART
#define UART

/* this target.h below is similar to the file cogent.h, registers descriptor,
   not needed here	*/
/*	#include "target.h"             */

//  reader using UART number 2
#define		readerPort	 2

// return value definition

#define		FAIL		-3
#define		SUCCEED 	 0

#define		OPENED		 1
#define		NOT_OPENED	-1

#define		NO_CONTENT	-2

#define		COMPLETED	 1
#define		UNCOMPLETED	 0


//*************************************************************************
//
//   UART drive function prototypes
//
//****************************************************************************

static void    UART2_LISR( int vector );
int   readerOpen( int BaudRate, int DataBits, int StopBits,int Parity, int EvenParity );
int    readerClose( void );
int    readerRead( unsigned char * response );
int    readerWrite( unsigned char * command, int command_Len );


void   readerTest( void );

#endif /* EOF for Uart.h */