libuart2init.c

G711在dsPIC33FJ256GP506下的应用

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*                       Software License Agreement                   *
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*   The software supplied herewith by Microchip Technology           *
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/******************************************************************************
**
**  Filename:     libuart2Init.c
**
**  System:       RISC
**
**  Platform:     dsPIC33F
**
**  Description:  This file contains the API libuart2Init ( ).This API  
**                initializes the UART2 on dsPIC33F device based on the  
**				  settings provided by the user through dci structure.
**  
*******************************************************************************/

#include <p33Fxxxx.h>
#include "G711Lib_common.h"

/******************************************************************************
**
**  Function Name: libuart2Init ( ) 
**
**  Description:   This API initializes the UART2 registers. 
**
*******************************************************************************/
void libuart2Init ( )
{
  int temp;                                   //Temporary variable.
  U2MODE = 0x0000;                            //Initialize and Enable UART2
                                              //for Tx and Rx
  U2STAbits.URXISEL = 0x00 ;                  //Buffer length for uart receive
                                              //to 1 character.							                
  temp = (int)BRG;                            //Refer the common.h file for 
                                              //defination of BRG
  U2BRG = temp;	                              //Initialize baudrate
  U2MODEbits.UARTEN = 0x01;					  //Enable UART
  U2STA |= 0x0400;
  IPC7bits.U2RXIP = 0x04;	 				  //Set UART RX interrupt priority
  _U2TXIF = 0x00;							  //Clear Rx interrupt flag  		
}
/*------------------------------------------------------------------------------
                                  END OF FILE:  libuart2Init.c
-------------------------------------------------------------------------------*/