uart.h

来自「矿工定位系统,包括单片机原理图,PCB,KEILC51原代码,带瓦斯检测功能,成」· C头文件 代码 · 共 56 行

//uart.h - code recommendation for C header file
/***********************************************************************
MODULE:    UART
VERSION:   1.04
CONTAINS:  Routines for controlling the UART peripheral on the Philips
           P89LPC932
COPYRIGHT: Embedded Systems Academy, Inc. - www.esacademy.com
LICENSE:   May be freely used in commercial and non-commercial code
           without royalties provided this copyright notice remains
           in this file and unaltered
WARNING:   IF THIS FILE IS REGENERATED BY CODE ARCHITECT ANY CHANGES
           MADE WILL BE LOST. WHERE POSSIBLE USE ONLY CODE ARCHITECT
           TO CHANGE THE CONTENTS OF THIS FILE
GENERATED: On "Feb 24 2004" at "11:46:47" by Code Architect 2.03
***********************************************************************/

#ifndef _UARTH_
#define _UARTH_

/***********************************************************************
DESC:    Transmits a 8-bit value via the UART in the current mode
         May result in a transmit interrupt if enabled.
RETURNS: Nothing
CAUTION: user_uart_init must be called first
************************************************************************/
extern void uart_transmit
  (
  unsigned char value    // data to transmit
  );

/***********************************************************************
DESC:    Gets a received 8-bit value from the UART
RETURNS: Received data
CAUTION: user_uart_init must be called first
************************************************************************/
extern unsigned char uart_get
  (
  void
  );

/***********************************************************************
DESC:    Initializes UART for mode 1
         Baudrate: 19200
RETURNS: Nothing
CAUTION: If interrupts are being used then EA must be set to 1
         after calling this function
************************************************************************/
extern void user_uart_init
  (
  void
  );

#endif // _UARTH_