49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
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#ifndef ROWPORT_PCA9655E_H
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#define ROWPORT_PCA9655E_H
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#include <Arduino.h>
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#include <inttypes.h>
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#include <Wire.h>
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#include <RowPort.h>
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#include "IOExpanderPort.h"
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/* One PCA9655E I/O expander port connected to matrix rows.
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begin() configures column port's configuration and output.
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This should normally be called only once.
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Instantiation
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------------
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Example instantiation for row port 0:
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IOExpanderPort port0(0, 0);
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RowPort_PCA9655E rowPort0(port0);
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Example instantiation for row port 1:
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IOExpanderPort port1(1, 0);
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RowPort_PCA9655E rowPort1(port1);
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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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PCA9655E data sheet
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----------------
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http://www.onsemi.com/pub_link/Collateral/PCA9655E-D.PDF
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*/
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class RowPort_PCA9655E : public RowPort
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{
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private:
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IOExpanderPort& port;
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const uint8_t configurationByteCommand;
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const uint8_t outputByteCommand;
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public:
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//The constructor initialization list is in .cpp
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RowPort_PCA9655E(IOExpanderPort& port);
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void begin();
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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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