pwm_cap.bas File Reference

Example: PWM output and CAP input. More...

#include "BBB/pruio.bi"
#include "BBB/pruio_pins.bi"

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Macros
#define	P_OUT   /* P9_21 */
	The pin for PWM output.
#define	P_IN   /* P9_42 */
	The pin for CAP input.

Functions
int	main ()

Variables
VAR	io = NEW PruIo
	Create a PruIo structure, wakeup subsystems.
Float_t	f1
	Variable for calculated frequency.
Float_t	d1
	Variable for calculated duty cycle.
Float_t	f0 = 31250
	The required frequency.
Float_t	d0 = .5
	The required duty cycle.
VAR	k = ASC(INKEY())
	The key code.

Detailed Description

Example: PWM output and CAP input.

This file contains an example on how to measure the frequency and duty cycle of a pulse train with a eCAP module input. The program sets another pin as eHRPWM output to generate a pulse width modulated signal as source for the measurement. The output can be changed by some keys, the frequency and duty cycle of the input is shown continuously in the terminal output. Find a functional description in section pwm_cap.

Licence: GPLv3, Copyright 2014-2023 by Thomas{ doT ]Freiherr[ At ]gmx[ DoT }net

Compile by: fbc -w all pwm_cap.bas

Since

0.2

Definition in file pwm_cap.bas.

Function Documentation

main()

int main

(

)

The main function.

Definition at line 96 of file pwm_cap.bas.

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