readtimer45.c

来自「基於 c51/8051 的 nand Flash Memory HY27US08」· C语言 代码 · 共 29 行

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

/* These devices support Timers 4 and 5 */
#if defined(_TIMER4) && defined(_TIMER5)

/********************************************************************
*    Function Name:  ReadTimer45                                    *
*    Description:    This routine reads the 32-bit value from       *
*                    Timer4 and Timer5.                             *
*    Parameters:     None                                           *
*    Return Value:   unsigned long: Timer4 and Timer5  32-bit value *
********************************************************************/

unsigned long ReadTimer45(void)
{
    unsigned long timer;
    timer = TMR4;                        /* Copy Timer4 into timer low 16bit */
    timer |= (unsigned long)TMR5HLD<<16; /* shift  16 time as TMR 5 
                                            contains MSB , TMR4 LSB */ 
    return (timer);
}

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