89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
/****************************************************************************
|
|
* apps/examples/pwm/pwm.h
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __APPS_EXAMPLES_PWM_PWM_H
|
|
#define __APPS_EXAMPLES_PWM_PWM_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Configuration ************************************************************/
|
|
|
|
/* CONFIG_NSH_BUILTIN_APPS - Build the PWM test as an NSH built-in function.
|
|
* CONFIG_EXAMPLES_PWM_DEVPATH - The path to the PWM device.
|
|
* Default: /dev/pwm0
|
|
* CONFIG_EXAMPLES_PWM_FREQUENCY - The initial PWM frequency.
|
|
* Default: 100 Hz
|
|
* CONFIG_EXAMPLES_PWM_DUTYPCT - The initial PWM duty as a percentage.
|
|
* Default: 50%
|
|
* CONFIG_EXAMPLES_PWM_DURATION - The initial PWM pulse train duration
|
|
* in seconds. Used only if the current pulse count is zero
|
|
* (pulse count is only supported if CONFIG_PWM_PULSECOUNT is defined).
|
|
* Default: 5 seconds
|
|
* CONFIG_EXAMPLES_PWM_PULSECOUNT - The initial PWM pulse count.
|
|
* This option is only available if CONFIG_PWM_PULSECOUNT is defined.
|
|
* Default: 0 (i.e., use the duration, not the count).
|
|
*/
|
|
|
|
#ifndef CONFIG_PWM
|
|
# error "PWM device support is not enabled (CONFIG_PWM)"
|
|
#endif
|
|
|
|
#ifndef CONFIG_EXAMPLES_PWM_DEVPATH
|
|
# define CONFIG_EXAMPLES_PWM_DEVPATH "/dev/pwm0"
|
|
#endif
|
|
|
|
#ifndef CONFIG_EXAMPLES_PWM_FREQUENCY
|
|
# define CONFIG_EXAMPLES_PWM_FREQUENCY 100
|
|
#endif
|
|
|
|
#ifndef CONFIG_EXAMPLES_PWM_DUTYPCT
|
|
# define CONFIG_EXAMPLES_PWM_DUTYPCT 50
|
|
#endif
|
|
|
|
#ifndef CONFIG_EXAMPLES_PWM_DURATION
|
|
# define CONFIG_EXAMPLES_PWM_DURATION 5
|
|
#endif
|
|
|
|
#ifndef CONFIG_EXAMPLES_PWM_PULSECOUNT
|
|
# define CONFIG_EXAMPLES_PWM_PULSECOUNT 0
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#endif /* __APPS_EXAMPLES_PWM_PWM_H */
|