s1.h

Dos 串口通信例程实现了FiFO ,中断发送中断接受！

/*
  C language header file for sample programs for the serial port.

  SBS Science & Technology CO.,LTD.
  http://www.sbs.com.cn

  Compiler: Turboc C++ (r) version 3.0

  Last update:	Descenber 1, 2005

 The following constants define the location of the various registers on
 the serial port.
*/
#define BUFFLEN 10800
#define BUFFMAX 900

#define ODD 0
#define EVEN 2

#define  RXR    0   // Transmit register (Write)
#define  TXR    0   // Receive register  (Read)
#define  IER    1   // Interrupt Enable
#define  IIR    2   // Interrupt ID
#define  FCR    2   // FIFO control register
#define  LCR    3   // Line control register
#define  MCR    4   // Modem control register
#define  LSR    5   // Line status register
#define  MSR    6   // Modem status register

char *str={"This is a test programer. COM1 send data and COM2 receive data. Now sending... "};
char *strings={"Please select test way Rev1.0:\n"
			"    1. AUTO send/receive. default COM1 0x3f8 IRQ4,COM2 0x2f8 IRQ3,9600bps.\n"
			"    2. MANUAL send/receive. default COM1 0x3f8 IRQ4,COM2 0x2f8 IRQ3,9600bps.\n"
			"    3. AUTO or MANAUL. default COM1 0x3f8 IRQ4 9600bps send and receive.\n"
			"    4. Test RTS CTS DTR DSR DCD IR sign.\n"
			"    5. INTERRUPT send/receive. default COM1 0x3f8 IRQ4,COM2 0x2f8 IRQ3,9600bps.\n"
			"please input 1-5. ESC is Exit, other key default [ ].\b\b\b"};