can1istxready.c

Microchip的官方PIC24H系列16位单片机的外设源程序库。

#include<CAN.h>
#include<p30fxxxx.h>

#if defined(__dsPIC30F4013__) || defined(__dsPIC30F5011__) || defined(__dsPIC30F6011__)  || defined(__dsPIC30F6012__) \
    || defined(__dsPIC30F5013__) || defined(__dsPIC30F6013__) || defined(__dsPIC30F6014__) || defined(__dsPIC30F4012__) \
    || defined(__dsPIC30F4011__) || defined(__dsPIC30F6010__) || defined(__dsPIC30F5015__)

/****************************************************************************
* Function Name     : CAN1IsTXReady
* Description       : This function returns TXREQ bit status which indicates 
*                     whether the transmitter is ready for next transmission.
* Parameters        : char: buffno
* Return Value      : char: compliment of TXREQ bit status 
*****************************************************************************/

char CAN1IsTXReady(char buffno)
{  
    switch(buffno)
    {
    case 0:
        return !(C1TX0CONbits.TXREQ);
        break;
    case 1:
        return !(C1TX1CONbits.TXREQ);
        break;
    case 2:
        return !(C1TX2CONbits.TXREQ);
        break;
    }
    return 0;
}

#endif