circuitpython/ports/stm32/adc.h

69 lines
2.3 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_STM32_ADC_H
#define MICROPY_INCLUDED_STM32_ADC_H
#if !BUILDING_MBOOT
extern const mp_obj_type_t pyb_adc_type;
extern const mp_obj_type_t pyb_adc_all_type;
#endif
void adc_config(ADC_TypeDef *adc, uint32_t bits);
uint32_t adc_config_and_read_u16(ADC_TypeDef *adc, uint32_t channel, uint32_t sample_time);
#if defined(ADC_CHANNEL_VBAT)
static inline void adc_deselect_vbat(ADC_TypeDef *adc, uint32_t channel) {
(void)adc;
if (channel == ADC_CHANNEL_VBAT) {
ADC_Common_TypeDef *adc_common;
#if defined(STM32F0) || defined(STM32WB)
adc_common = ADC1_COMMON;
#elif defined(STM32F4) || defined(STM32L4)
adc_common = ADC_COMMON_REGISTER(0);
#elif defined(STM32F7)
adc_common = ADC123_COMMON;
#elif defined(STM32H7)
adc_common = adc == ADC3 ? ADC3_COMMON : ADC12_COMMON;
#endif
adc_common->CCR &= ~LL_ADC_PATH_INTERNAL_VBAT;
}
}
#else
static inline void adc_deselect_vbat(ADC_TypeDef *adc, uint32_t channel) {
(void)adc;
(void)channel;
}
#endif
#endif // MICROPY_INCLUDED_STM32_ADC_H