usbtest/libopencm3/lib/stm32/l4/adc.c

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/** @addtogroup adc_file ADC peripheral API
@ingroup peripheral_apis
@author @htmlonly &copy; @endhtmlonly 2016 Karl Palsson <karlp@tweak.net.au>
LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2016 Karl Palsson <karlp@tweak.net.au>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/adc.h>
/**@{*/
/**
* Enable the ADC Voltage regulator
* Before any use of the ADC, the ADC Voltage regulator must be enabled.
* You must wait up to 10uSecs afterwards before trying anything else.
* @param[in] adc ADC block register address base
* @sa adc_disable_regulator
*/
void adc_enable_regulator(uint32_t adc)
{
ADC_CR(adc) |= ADC_CR_ADVREGEN;
}
/**
* Disable the ADC Voltage regulator
* You can disable the adc vreg when not in use to save power
* @param[in] adc ADC block register address base
* @sa adc_enable_regulator
*/
void adc_disable_regulator(uint32_t adc)
{
ADC_CR(adc) &= ~ADC_CR_ADVREGEN;
}
/**@}*/