rs232x3.h

来自「“TCP/IP协议库及例程”和“PPP-TCP/IP协议库及例程”系英创信息技术」· C头文件 代码 · 共 29 行

#if !defined( _RS232_H )
#define _RS232_H

#define	COM1	0
#define	COM2	1
#define	COM3	2

// BaudIdx = 1:  115.2kbps
// BaudIdx = 2:  57.6kbps
// BaudIdx = 3:  38.4kbps
// BaudIdx = 6:  19.2kbps
// BaudIdx = 12: 9600bps
// BaudIdx = ...
// Parity = 0:  no   parity
//        = 1:  odd  parity
//        = 2:  even parity
int InitUART( int PortNum, unsigned int BaudIdx, int Parity=0 );
int InstallISR( int PortNum );
int UninstallISR( int PortNum );

// return =  0: ok
//        = -1: output buffer full
int  PutOutputData( int PortNum, char abyte );
void StartSend( int PortNum );

// return = -1: no data available
int  GetInputData( int PortNum );

#endif