chap12/timer32bit_switch_pulse_measure.c File Reference

#include "pic24_all.h"
#include <stdio.h>

Go to the source code of this file.

Functions

void CONFIG_SW1 ()
 Switch1 configuration, use RB13.


Detailed Description

Measures the pulse width of pushbutton switch using Timer2/3 in 32-bit mode with INT1 for edge detection. This projects uses an external crystal for accuracy. CLOCK_CONFIG=PRIPLL_8MHzCrystal_40MHzFCY is defined in the MPLAB project. Remove this macro if you wish to use the internal oscillator. Typical crystal accuracy for through hole is +/-20 pmm, so for a 100000 us pulse width measurement this is +/- 2 us.

Definition in file timer32bit_switch_pulse_measure.c.


Function Documentation

void CONFIG_SW1 (  )  [inline]

Switch1 configuration, use RB13.

Configure INT1 interrupt

Definition at line 80 of file timer32bit_switch_pulse_measure.c.


Generated on Sun Mar 15 11:14:22 2009 for PIC24 Support Libraries by  doxygen 1.5.8