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43 lines
970 B
C++
43 lines
970 B
C++
4 years ago
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#include "adc.hpp"
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const GPTConfig ADCd::m_gpt_config = {
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.frequency = 1000000,
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.callback = NULL,
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.cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
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.dier = 0
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};
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void ADCd::start()
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{
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initPins();
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gptStart(m_gptd, &m_gpt_config);
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m_adc_config.difsel = 0;
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m_adc_config.adcdinst = this;
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adcStart(m_adcd, &m_adc_config);
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adcSTM32EnableVREF(m_adcd);
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}
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adcsample_t *ADCd::getSamples(adcsample_t *buffer, size_t count)
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{
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m_is_adc_finished = false;
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adcStartConversion(m_adcd, &m_adc_group_config, buffer, count);
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gptStartContinuous(m_gptd, 100); // 10kHz
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while (!m_is_adc_finished);
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return buffer;
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}
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void ADCd::initPins()
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{
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palSetPadMode(GPIOA, 0, PAL_MODE_INPUT_ANALOG);
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}
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void ADCd::adcEndCallback(ADCDriver *adcd)
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{
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auto *_this = reinterpret_cast<const ADCdConfig *>(adcd->config)->adcdinst;
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gptStopTimer(_this->m_gptd);
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_this->m_is_adc_finished = true;
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}
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