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65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
/**
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* @file adc.hpp
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* @brief Manages signal reading through the ADC.
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*
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* Copyright (C) 2020 Clyne Sullivan
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*
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* Distributed under the GNU GPL v3 or later. You should have received a copy of
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* the GNU General Public License along with this program.
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* If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef STMDSP_ADC_HPP_
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#define STMDSP_ADC_HPP_
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#include "hal.h"
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#include <array>
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class ADC
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{
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public:
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using Operation = void (*)(adcsample_t *buffer, size_t count);
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enum class Rate : int {
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R8K = 0,
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R16K,
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R20K,
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R32K,
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R48K,
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R96K
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};
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static void begin();
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static void start(adcsample_t *buffer, size_t count, Operation operation);
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static void stop();
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static void setRate(Rate rate);
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static void setOperation(Operation operation);
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static int getRate();
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static unsigned int getTimerDivisor();
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private:
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static ADCDriver *m_driver;
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static GPTDriver *m_timer;
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static const ADCConfig m_config;
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static /*const*/ ADCConversionGroup m_group_config;
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static const GPTConfig m_timer_config;
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static std::array<std::array<uint32_t, 4>, 6> m_rate_presets;
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static adcsample_t *m_current_buffer;
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static size_t m_current_buffer_size;
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static Operation m_operation;
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static unsigned int m_timer_divisor;
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static void conversionCallback(ADCDriver *);
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};
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#endif // STMDSP_ADC_HPP_
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