24 lines
606 B
C++
24 lines
606 B
C++
#include "ShiftRegister.h"
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ShiftRegister::ShiftRegister(volatile uint8_t *shiftClockPort, uint8_t shiftClockPin,
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volatile uint8_t *dataPort, uint8_t dataPin,
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volatile uint8_t *latchClockPort, uint8_t latchClockPin)
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: m_shiftClockPin(shiftClockPort, shiftClockPin)
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, m_dataPin(dataPort, dataPin)
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, m_latchClockPin(latchClockPort, latchClockPin)
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{
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}
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void ShiftRegister::output(int8_t value)
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{
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for (int8_t bitIdx = 7; bitIdx >= 0; --bitIdx)
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{
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m_dataPin.set(value & (1 << bitIdx));
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m_shiftClockPin.pulse();
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}
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m_latchClockPin.pulse();
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}
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