45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
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#ifndef ROW_H
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#define ROW_H
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#include <RowBase.h>
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#define SAMPLE_COUNT 4 //number of consecutive equal bits needed to change a debounced bit
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/*
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Configuration
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-------------
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#define SAMPLE_COUNT in this header file.
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define and initilize DELAY_MICROSECONDS in sketch.
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const unsigned int Row::DELAY_MICROSECONDS = 0;
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Instantiation
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------------
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Example instantiation of a row:
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RowPort_AVR rowPortF(DDRF, PORTF);
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ColPort_AVR colPortB(DDRB, PORTB, PINB, 1<<0 | 1<<1 | 1<<2 | 1<<3 );
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ColPort_AVR colPortD(DDRD, PORTD, PIND, 1<<2 | 1<<3 );
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ColPort* const ptrsColPorts[] = { &colPortB, &colPortD };
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const uint8_t COL_PORTS_COUNT = sizeof(ptrsColPorts)/sizeof(*ptrsColPorts);
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const PROGMEM Key* const ptrsKeys_0[] = { &k_00, &k_01, &k_02, &k_03, &k_04, &k_05 };
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Row row_0(ptrsKeys_0, &rowPortF, 1<<0, ptrsColPorts, COL_PORTS_COUNT);
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Number of ColPort::colPins should equal number of keys in Row::ptrsKeys array
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if a pin is missing, a key will be unresposive
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if a Key pointer is missing, the keyboard will fail in an unprdictable way
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*/
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class Row : public RowBase
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{
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private:
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uint8_t samples[SAMPLE_COUNT]; //bitwise, one bit per key, most recent readings
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uint8_t samplesIndex; //samples[] current write index
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virtual uint8_t debounce(const uint8_t rowState);
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public:
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Row( RowPort &refRowPort, const uint8_t rowPin,
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ColPort *const ptrsColPorts[], const uint8_t colPortCount, Key *const ptrsKeys[])
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: RowBase(refRowPort, rowPin, ptrsColPorts, colPortCount, ptrsKeys), samplesIndex(0) { }
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};
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#endif
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