/**************************************************************************** * 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 /**************************************************************************** * 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 */