pi_pwm.c File Reference

Pulse width modulation library function implementation. More...

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <dirent.h>
#include <fcntl.h>
#include <assert.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <unistd.h>
#include "pihwm.h"
#include "pi_pwm.h"

Go to the source code of this file.

Functions
int	pwm_init ()
	Initialise the PWM peripheral.
void	pwm_mode (unsigned int mode)
	Set mode for the PWM peripheral.
void	pwm_value (unsigned int value)
	Set PWM value.
void	pwm_release ()
	Releases the PWM peripheral and unmaps the memory.

Variables
volatile unsigned int *	gpio
volatile unsigned int *	pwm
volatile unsigned int *	clk

Detailed Description

Pulse width modulation library function implementation.

Author

Omer Kilic omerk.nosp@m.ilic.nosp@m.@gmai.nosp@m.l.co.nosp@m.m - Erlang Solutions

Jeremy Bennett jerem.nosp@m.y.be.nosp@m.nnett.nosp@m.@emb.nosp@m.ecosm.nosp@m..com - Embecosm Limited

LICENSE

Copyright (C) 2013 Omer Kilic omerk.nosp@m.ilic.nosp@m.@gmai.nosp@m.l.co.nosp@m.m - Erlang Solutions Copyright (C) 2013 Jeremy Bennett jerem.nosp@m.y.be.nosp@m.nnett.nosp@m.@emb.nosp@m.ecosm.nosp@m..com - Embecosm Limited

This file is part of pihwm http://omerk.github.io/pihwm

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Definition in file pi_pwm.c.