41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
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#ifndef ROWPORT_AVR_OPTIC_H
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#define ROWPORT_AVR_OPTIC_H
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#include <Arduino.h>
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#include <inttypes.h>
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#include <RowPort.h>
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/* One AVR microcontroller port connected to matrix rows.
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setActivePinHigh() has a delay to allow phototransistors time to sense strobe
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(DodoHand has optic switches with phototransistors).
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Instantiation
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------------
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The constructor configures all pins of port as output (for strobe pins and LED).
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The 'x' in parameters DDRx, PORTx, and PINx should all be the same letter.
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Example instantiation for row port F:
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RowPort_AVR_Optic rowPortF(DDRF, PORTF);
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Diode orientation
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----------------
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Rows, columns, and diode orientation are explained in Matrix.h
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*/
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class RowPort_AVR_Optic : public RowPort
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{
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private:
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const volatile unsigned char& DDR; //Data Direction Register
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protected:
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volatile unsigned char& PORT; //PORT register
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public:
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//The constructor initialization list is in .cpp
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RowPort_AVR_Optic(volatile unsigned char& DDRx, volatile unsigned char& PORTx);
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virtual void setActivePinLow(const uint8_t activePin); //activePin is a port mask
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virtual void setActivePinHigh(const uint8_t activePin);
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};
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#endif
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