www.pudn.com > 8051_pppsrc.zip > CommDrv.h, change:2001-01-31,size:1444b

/*///////////////////////////////////////////////////////////////////////////// 
 
File Name : CommDrv.h 
 
Author : Rene Trenado 
 
Location : Motorola Applications Lab, Baja California 
 
Date Created : July 2000 
 
Current Revision : 0.0 
 
Notes : This file contains comm port specific definitions 
 
/////////////////////////////////////////////////////////////////////////////*/ 
#ifndef _H_COMMDRV_ 
#define _H_COMMDRV_ 
 
#include "Notation.h" 
 
#define BAUDS_2400    3   // 8 Divisor 
#define BAUDS_4800    2   // 4 Divisor 
#define BAUDS_9600    1   // 2 Divisor 
#define BAUDS_19200   0   // 1 Divisor 
 
typedef enum  { 
  ENABLE_RX = 0x04,		// enable receiver 
  ENABLE_TX = 0x08,		// enable transmitter 
  ENABLE_RX_EVENTS = 0x20,	// enable receiver interrupts 
  ENABLE_TX_EVENTS = 0x80	// enable transmitter interrupts 
} CommOptions; 
 
#define SCC1  *((BYTE *)0x13)		// Status and contro registers 
#define SCC2  *((BYTE *)0x14) 
#define SCS1  *((volatile BYTE *)0x16) 
#define SCDR  *((volatile BYTE *)0x18) 
#define SCBR  *((BYTE *)0x19) 
 
extern void @interrupt UartRxISR (void);	// export ISR  
 
//////////////// API Functions to Export //////////////////// 
void OpenComm (register BYTE BaudRate, register CommOptions Options); 
void CloseComm (void); 
void CommEventProc (EventProc Proc); 
void WriteComm (BYTE c); 
void WriteCommStr (char* string); 
BYTE ReadComm (void); 
void UseDefaultCommProc (void); 
 
#endif