39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
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#ifndef ROW_SHIFTREGISTERS_H
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#define ROW_SHIFTREGISTERS_H
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#include <RowBase.h>
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#include <RowScanner_SPIShiftRegisters.h>
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#include <Debouncer_4Samples.h>
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/* Row_DH_IOE is a row connected to an Input/Output Expander.
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Instantiation
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-------------
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Definition of DELAY_MICROSECONDS is explained in RowBase.cpp.
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Example instantiation of a row:
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const unsigned int RowBase::DELAY_MICROSECONDS = 1000;
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todo
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Key* const ptrsKeys_0[] = { &k_00, &k_01, &k_02, &k_03, &k_04, &k_05 };
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Row_ShiftRegisters row_0(uint8_t BYTE_COUNT, ptrsKeys_0);
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Number of pins in colPort0 should equal number of keys in ptrsKeys_0[] 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_ShiftRegisters : public RowBase
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{
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private:
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RowScanner_SPIShiftRegisters scanner;
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Debouncer_4Samples debouncer;
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public:
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Row_ShiftRegisters(const uint8_t SS, uint8_t BYTE_COUNT, Key *const ptrsKeys[], uint16_t KEY_COUNT)
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: RowBase(ptrsKeys), scanner(SS, BYTE_COUNT, KEY_COUNT) { }
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void begin();
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uint8_t scan(uint16_t& rowEnd);
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uint8_t debounce(const uint8_t rowState, uint8_t& debounced);
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};
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#endif
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