120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/****************************************************************************
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* apps/examples/foc/foc_adc.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __EXAMPLES_FOC_FOC_ADC_H
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#define __EXAMPLES_FOC_FOC_ADC_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* VBUS source must be specified */
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#if defined(CONFIG_EXAMPLES_FOC_VBUS_CONST) && \
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defined(CONFIG_EXAMPLES_FOC_VBUS_ADC)
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# error
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#endif
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/* Velocity source must be specified */
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#if defined(CONFIG_EXAMPLES_FOC_VEL_CONST) && \
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defined(CONFIG_EXAMPLES_FOC_VEL_ADC)
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# error
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#endif
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/* VBUS ADC scale factor */
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#ifdef CONFIG_EXAMPLES_FOC_VBUS_ADC
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# define VBUS_ADC_SCALE (CONFIG_EXAMPLES_FOC_ADC_VREF * \
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CONFIG_EXAMPLES_FOC_VBUS_SCALE / \
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CONFIG_EXAMPLES_FOC_ADC_MAX / \
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1000.0f / \
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1000.0f)
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#endif
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/* Velocity ADC scale factor */
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#ifdef CONFIG_EXAMPLES_FOC_VEL_ADC
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# define VEL_ADC_SCALE (1.0f / CONFIG_EXAMPLES_FOC_ADC_MAX)
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#endif
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/* If constant velocity is selected, velocity value must be provided */
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#ifdef CONFIG_EXAMPLES_FOC_VEL_CONST
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# define VEL_ADC_SCALE (1)
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# if CONFIG_EXAMPLES_FOC_VEL_CONST_VALUE == 0
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# error
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# endif
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#endif
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/* If constant VBUS is selected, VBUS value must be provided */
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#ifdef CONFIG_EXAMPLES_FOC_VBUS_CONST
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# define VBUS_ADC_SCALE (1)
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# define VBUS_CONST_VALUE (CONFIG_EXAMPLES_FOC_VBUS_CONST_VALUE / 1000.0f)
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# if CONFIG_EXAMPLES_FOC_VBUS_CONST_VALUE == 0
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# error
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# endif
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#endif
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/* Additional configuration if ADC support is required */
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#ifdef CONFIG_EXAMPLES_FOC_HAVE_ADC
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/* AUX ADC samples support */
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# if defined(CONFIG_EXAMPLES_FOC_VEL_ADC) && \
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defined(CONFIG_EXAMPLES_FOC_VBUS_ADC)
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# define ADC_SAMPLES (2)
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# elif defined(CONFIG_EXAMPLES_FOC_VEL_ADC) || \
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defined(CONFIG_EXAMPLES_FOC_VBUS_ADC)
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# define ADC_SAMPLES (1)
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# else
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# define ADC_SAMPLES (0)
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#endif
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/* Verify ADC FIFO size */
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# if CONFIG_ADC_FIFOSIZE != (ADC_SAMPLES + 1)
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# error Invalid ADC FIFO size
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# endif
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/* Numerate ADC samples */
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# if defined(CONFIG_EXAMPLES_FOC_VEL_ADC) && \
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defined(CONFIG_EXAMPLES_FOC_VBUS_ADC)
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# define VBUS_ADC_SAMPLE (0)
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# define VEL_ADC_SAMPLE (1)
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# elif defined(CONFIG_EXAMPLES_FOC_VBUS_ADC)
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# define VBUS_ADC_SAMPLE (0)
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# elif defined(CONFIG_EXAMPLES_FOC_VEL_ADC)
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# define VEL_ADC_SAMPLE (0)
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# endif
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#endif /* CONFIG_EXAMPLES_FOC_HAVE_ADC */
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#endif /* __EXAMPLES_FOC_FOC_ADC_H */
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