main.c File Reference

#include "board.h"
#include <stdint.h>
#include <stdio.h>

Go to the source code of this file.

Defines
#define	PWM_FREQUENCY   50
#define	MAX_DUTY_CYCLE   100
#define	MIN_DUTY_CYCLE   0
#define	DUTY_BUFFER_LENGTH   (MAX_DUTY_CYCLE - MIN_DUTY_CYCLE )
#define	PIN_PWM_LED   { PIO_PA23B_PWMC0_PWMH0, PIOA, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT}
#define	CHANNEL_PWM_LED0   0
Functions
	COMPILER_ALIGNED (32)
void	PWM0_Handler (void)
int	main (void)
	Application entry point for PWM with PDC example.

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Detailed Description

This file contains all the specific code for the pwm_pdc example.

Definition in file main.c.

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Define Documentation

#define DUTY_BUFFER_LENGTH   (MAX_DUTY_CYCLE - MIN_DUTY_CYCLE )

Duty cycle buffer length for three channels

Definition at line 105 of file main.c.

#define MAX_DUTY_CYCLE   100

Maximum duty cycle value.

Definition at line 100 of file main.c.

#define MIN_DUTY_CYCLE   0

Minimum duty cycle value.

Definition at line 102 of file main.c.

#define PIN_PWM_LED   { PIO_PA23B_PWMC0_PWMH0, PIOA, ID_PIOA, PIO_PERIPH_B, PIO_DEFAULT}

PIO pins to configure.

Definition at line 113 of file main.c.

#define PWM_FREQUENCY   50

PWM frequency in Hz.

Definition at line 97 of file main.c.

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Function Documentation

COMPILER_ALIGNED

(

32

)

duty cycle buffer Interrupt handler for the XDMAC.

Definition at line 119 of file main.c.

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int main

(

void

)

Application entry point for PWM with PDC example.

Outputs a PWM on LED1. Channel #0 is configured as synchronous channels. The update of the duty cycle values is made automatically by the Peripheral DMA Controller.

Returns:

Unused (ANSI-C compatibility).

Definition at line 230 of file main.c.

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