return buffer;
}
+void ADCd::setSampleRate(ADCdRate rate)
+{
+ uint32_t val = 0;
+
+ switch (rate) {
+ case ADCdRate::R2P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_2P5);
+ break;
+ case ADCdRate::R6P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_6P5);
+ break;
+ case ADCdRate::R12P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_12P5);
+ break;
+ case ADCdRate::R24P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_24P5);
+ break;
+ case ADCdRate::R47P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_47P5);
+ break;
+ case ADCdRate::R92P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_92P5);
+ break;
+ case ADCdRate::R247P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_247P5);
+ break;
+ case ADCdRate::R640P5:
+ val = ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_640P5);
+ break;
+ }
+
+ m_adc_group_config.smpr[0] = val;
+}
+
void ADCd::initPins()
{
palSetPadMode(GPIOA, 0, PAL_MODE_INPUT_ANALOG);
ADCd *adcdinst;
};
+enum class ADCdRate : unsigned int {
+ R2P5,
+ R6P5,
+ R12P5,
+ R24P5,
+ R47P5,
+ R92P5,
+ R247P5,
+ R640P5
+};
+
class ADCd
{
public:
+ constexpr static const unsigned int CLOCK_RATE = 40000000;
+ constexpr static unsigned int SAMPLES_PER_SECOND(ADCdRate rate) {
+ unsigned int sps = 0;
+ switch (rate) {
+ case ADCdRate::R2P5:
+ sps = 15;
+ break;
+ case ADCdRate::R6P5:
+ sps = 19;
+ break;
+ case ADCdRate::R12P5:
+ sps = 25;
+ break;
+ case ADCdRate::R24P5:
+ sps = 37;
+ break;
+ case ADCdRate::R47P5:
+ sps = 60;
+ break;
+ case ADCdRate::R92P5:
+ sps = 105;
+ break;
+ case ADCdRate::R247P5:
+ sps = 260;
+ break;
+ case ADCdRate::R640P5:
+ sps = 653;
+ break;
+ }
+
+ return static_cast<unsigned int>(1.f / (sps / static_cast<float>(CLOCK_RATE)));
+ }
+
constexpr explicit ADCd(ADCDriver& adcd, GPTDriver& gptd) :
m_adcd(&adcd), m_gptd(&gptd), m_adc_config{},
m_adc_group_config(ADC_GROUP_CONFIG),
void start();
adcsample_t *getSamples(adcsample_t *buffer, size_t count);
+ void setSampleRate(ADCdRate rate);
private:
static const GPTConfig m_gpt_config;
bool m_is_adc_finished;
void initPins();
+ //void selectPins(bool a0, bool a1);
+
static void adcEndCallback(ADCDriver *adcd);
constexpr static const ADCConversionGroup ADC_GROUP_CONFIG = {