mirror of
https://bitbucket.org/librepilot/librepilot.git
synced 2024-12-05 13:24:11 +01:00
a9f1d55fea
- performs undersampling in two steps operating with a half buffer at time; - Skip costly undersampling for Temperature channel; - some optimizations to the downsample loops; - apply compiler speed optimization to PIOS_ADC_downsample_data()
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/**
|
|
******************************************************************************
|
|
* @addtogroup PIOS PIOS Core hardware abstraction layer
|
|
* @{
|
|
* @addtogroup PIOS_ADC ADC Functions
|
|
* @brief STM32 ADC PIOS interface
|
|
* @{
|
|
*
|
|
* @file pios_adc.h
|
|
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
|
|
* @brief ADC functions header.
|
|
* @see The GNU Public License (GPL) Version 3
|
|
*
|
|
*****************************************************************************/
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef PIOS_ADC_H
|
|
#define PIOS_ADC_H
|
|
|
|
// Maximum of 50 oversampled points
|
|
#define PIOS_ADC_MAX_SAMPLES ((((PIOS_ADC_NUM_CHANNELS + PIOS_ADC_USE_ADC2) >> PIOS_ADC_USE_ADC2) << PIOS_ADC_USE_ADC2) * PIOS_ADC_MAX_OVERSAMPLING * 2 / 2)
|
|
|
|
typedef void (*ADCCallback)(float *data);
|
|
|
|
/* Public Functions */
|
|
void PIOS_ADC_Config(uint32_t oversampling);
|
|
int32_t PIOS_ADC_PinGet(uint32_t pin);
|
|
float PIOS_ADC_PinGetVolt(uint32_t pin);
|
|
int16_t *PIOS_ADC_GetRawBuffer(void);
|
|
uint8_t PIOS_ADC_GetOverSampling(void);
|
|
void PIOS_ADC_SetCallback(ADCCallback new_function);
|
|
#if defined(PIOS_INCLUDE_FREERTOS)
|
|
void PIOS_ADC_SetQueue(xQueueHandle data_queue);
|
|
#endif
|
|
extern void PIOS_ADC_DMA_Handler(void);
|
|
|
|
#endif /* PIOS_ADC_H */
|
|
|
|
/**
|
|
* @}
|
|
* @}
|
|
*/
|