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41 lines
1.2 KiB
41 lines
1.2 KiB
3 years ago
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#pragma once
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#include "config.h"
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#include <type_traits>
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#if defined(USE_TIME_LITERALS)
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#include "frequency.h"
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#include <chrono>
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#endif
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namespace TeensyTimerTool
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{
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//--------------------------------------------------------------
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// Transform arithmetic, period and frequency values to float
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// For constant inputs the transformations are calculated at compile time
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// Arithmetic types
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template <class period_t, std::enable_if_t<std::is_arithmetic<period_t>::value, int> * = nullptr>
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float constexpr period2us(period_t v)
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{
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return (float)v;
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}
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#if defined(USE_TIME_LITERALS)
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// Duration types (s, ms, ns...)
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template <class period_t, std::enable_if_t<std::chrono::__is_duration<period_t>::value, int> * = nullptr>
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float constexpr period2us(period_t v)
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{
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return (duration_cast<duration<float, std::micro>>(v).count());
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}
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// Frequency types (Hz, MHz...)
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template <class period_t, std::enable_if_t<TeensyTimerTool::__is_frequency<period_t>::value, int> * = nullptr>
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float constexpr period2us(period_t v)
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{
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return 1'000'000 / duration_cast<hertz>(v).count();
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}
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#endif
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} // namespace TeensyTimerTool
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