readuart2.c

来自「Mplab C30编译器」· C语言 代码 · 共 40 行

#if defined(__PIC24F__)
#include <p24Fxxxx.h>
#endif
#include "uart.h"


/*UART2 is defined in following devices */
#ifdef _UART_IRDA_V1_2

/*********************************************************************************************
Function Prototype : unsigned int ReadUART2(void)
 
Include            : uart.h
 
Description        : This function returns the content of UART receive buffer
                     (UxRXREG) register.
 
Arguments          : None
 
Return Value       : This function returns the contents of Receive buffer 
                     (UxRXREG) register.
 
Remarks            : This function returns the contents of the Receive Buffer register.
                     If 9 bit reception is enabled, the entire register content is returned.
                     If 8 bit reception is enabled, then register is read and the 9th bit is
                     masked.
**********************************************************************************************/

unsigned int ReadUART2(void)
{
    if(U2MODEbits.PDSEL == 3)
        return (U2RXREG);
    else
        return (U2RXREG & 0xFF);
}

#else
#warning "Does not build on this target"
#endif