32 rader
725 B
C++
32 rader
725 B
C++
#include "Port_ShiftRegs.h"
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Port_ShiftRegs::Port_ShiftRegs(const uint8_t slaveSelect) : slaveSelect(slaveSelect)
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{
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pinMode(slaveSelect, OUTPUT);
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}
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/* begin() should be called once from sketch setup().
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Initializes shift register's shift/load pin.
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*/
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void Port_ShiftRegs::begin()
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{
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digitalWrite(slaveSelect, HIGH);
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SPI.begin();
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}
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void Port_ShiftRegs::write(const uint8_t pin, const bool logicLevel)
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{
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if (logicLevel == LOW)
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{
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outputVal &= ~pin; //set pin output to low
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}
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else
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{
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outputVal |= pin; //set pin output to high
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}
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digitalWrite(slaveSelect, LOW);
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SPI.transfer(outputVal);
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digitalWrite (slaveSelect, HIGH);
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}
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