wolfv6
7年前
+ 5
- 1
examples/keybrd_shift_register/keybrd_shift_register.ino
ファイルの表示
| @@ -30,7 +30,11 @@ Layout | |||
| // =============== CONFIGURATION =============== | |||
| ScanDelay scanDelay(9000); | |||
| const bool RowScanner_PinsArray::ACTIVE_HIGH = 0; //left matrix is active low | |||
| //active state of left matrix | |||
| const bool RowScanner_PinsArray::STROBE_ON = LOW; | |||
| const bool RowScanner_PinsArray::STROBE_OFF = HIGH; | |||
| const uint8_t RowScanner_SPIShiftRegisters::SHIFT_LOAD = 10; | |||
| Debug debug; | |||
+ 6
- 22
src/RowScanner_PinsArray.cpp
ファイルの表示
| @@ -11,13 +11,13 @@ RowScanner_PinsArray::RowScanner_PinsArray(const uint8_t STROBE_PIN, | |||
| //configure row | |||
| pinMode(STROBE_PIN, OUTPUT); | |||
| if (ACTIVE_HIGH) | |||
| if (STROBE_ON == LOW) //if active low | |||
| { | |||
| mode = INPUT; //requires external pull-down resistor | |||
| mode = INPUT_PULLUP; //uses internal pull-up resistor | |||
| } | |||
| else | |||
| { | |||
| mode = INPUT_PULLUP; //uses internal pull-up resistor | |||
| mode = INPUT; //requires external pull-down resistor | |||
| } | |||
| //configure cols | |||
| @@ -41,36 +41,20 @@ read_pins_t RowScanner_PinsArray::scan(uint8_t& keyCount) | |||
| read_pins_t rowState = 0; //bitwise, one col per bit, 1 means key is pressed | |||
| read_pins_t rowMask = 1; //bitwise, one col per bit, active col bit is 1 | |||
| //strobe row on | |||
| if (ACTIVE_HIGH) | |||
| { | |||
| digitalWrite(STROBE_PIN, HIGH); | |||
| } | |||
| else //activeLow | |||
| { | |||
| digitalWrite(STROBE_PIN, LOW); | |||
| } | |||
| digitalWrite(STROBE_PIN, STROBE_ON); | |||
| delayMicroseconds(3); //time to stablize voltage | |||
| //read all the column pins | |||
| for (uint8_t i=0; i < READ_PIN_COUNT; i++) | |||
| { | |||
| if ( digitalRead(READ_PINS[i]) == ACTIVE_HIGH ) | |||
| if ( digitalRead(READ_PINS[i]) == STROBE_ON ) | |||
| { | |||
| rowState |= rowMask; | |||
| } | |||
| rowMask <<= 1; | |||
| } | |||
| //strobe row off | |||
| if (ACTIVE_HIGH) | |||
| { | |||
| digitalWrite(STROBE_PIN, LOW); | |||
| } | |||
| else //activeLow | |||
| { | |||
| digitalWrite(STROBE_PIN, HIGH); | |||
| } | |||
| digitalWrite(STROBE_PIN, STROBE_OFF); | |||
| keyCount = READ_PIN_COUNT; | |||
| return rowState; | |||
+ 2
- 1
src/RowScanner_PinsArray.h
ファイルの表示
| @@ -12,7 +12,8 @@ Constructor is in RowScanner_PinsArray.cpp | |||
| class RowScanner_PinsArray | |||
| { | |||
| private: | |||
| static const bool ACTIVE_HIGH; //logic level of strobe pin: 0=activeLow, 1=activeHigh | |||
| static const bool STROBE_ON; //logic level of strobe on, HIGH or LOW | |||
| static const bool STROBE_OFF; //logic level of strobe off, HIGH or LOW | |||
| const uint8_t STROBE_PIN; //Arduino pin number connected to this row | |||
| const uint8_t* const READ_PINS; //array of read pin numbers | |||
| const uint8_t READ_PIN_COUNT; //number of read pins | |||
+ 6
- 6
src/RowScanner_PinsBitwise.cpp
ファイルの表示
| @@ -5,13 +5,13 @@ Strobes the row and reads the columns. | |||
| ColPort* const RowScanner_PinsBitwise::scan() | |||
| { | |||
| //strobe row on | |||
| if (activeHigh) | |||
| if (STROBE_ON == LOW) | |||
| { | |||
| refRowPort.setActivePinHigh(strobePin); | |||
| refRowPort.setActivePinLow(strobePin); | |||
| } | |||
| else //activeLow | |||
| { | |||
| refRowPort.setActivePinLow(strobePin); | |||
| refRowPort.setActivePinHigh(strobePin); | |||
| } | |||
| delayMicroseconds(3); //time to stablize voltage | |||
| @@ -19,13 +19,13 @@ ColPort* const RowScanner_PinsBitwise::scan() | |||
| refColPort.read(); | |||
| //strobe row off | |||
| if (activeHigh) | |||
| if (STROBE_ON == LOW) | |||
| { | |||
| refRowPort.setActivePinLow(strobePin); | |||
| refRowPort.setActivePinHigh(strobePin); | |||
| } | |||
| else //activeLow | |||
| { | |||
| refRowPort.setActivePinHigh(strobePin); | |||
| refRowPort.setActivePinLow(strobePin); | |||
| } | |||
| return &refColPort; | |||
+ 1
- 1
src/RowScanner_PinsBitwise.h
ファイルの表示
| @@ -19,7 +19,7 @@ class RowScanner_PinsBitwise | |||
| ColPort& refColPort) | |||
| : refRowPort(refRowPort), strobePin(strobePin), | |||
| refColPort(refColPort) {} | |||
| static const bool activeHigh; //logic level of strobe pin: 0=activeLow, 1=activeHigh | |||
| static const bool STROBE_ON; //logic level of strobe on, active state, HIGH or LOW | |||
| virtual ColPort* const scan(); | |||
| }; | |||
| #endif | |||
+ 2
- 2
src/Row_uC.h
ファイルの表示
| @@ -10,11 +10,11 @@ | |||
| Instantiation | |||
| ------------- | |||
| Definition of DELAY_MICROSECONDS is explained in RowBase.cpp. | |||
| todo Definition of activeHigh is explained in RowScanner_Interface.h | |||
| Example instantiation of a row: | |||
| const unsigned int RowBase::DELAY_MICROSECONDS = 1000; | |||
| const bool RowScanner_PinsArray::activeHigh = 0; | |||
| const bool RowScanner_PinsArray::STROBE_ON = LOW; //logic level of strobe on | |||
| const bool RowScanner_PinsArray::STROBE_OFF = HIGH; //logic level of strobe off | |||
| const uint8_t colPins[] = {0,1,2,3,7,8}; | |||
| const uint8_t COL_PIN_COUNT = sizeof(colPins)/sizeof(*colPins); | |||
+ 1
- 1
src/config_keybrd.h
ファイルの表示
| @@ -8,7 +8,7 @@ If your 8-bit AVR is running low on memory, using a smaller type saves SRAM. | |||
| Using smaller types on a 32-bit uC (Teensy LC) would accomplish nothing. | |||
| */ | |||
| /* Uncomment a typedef read_pins_t that covers all col pins of the RowScanner object with the most col pins i.e. | |||
| /* Uncomment a typedef read_pins_t size that covers all col pins of all RowScanner objects i.e. | |||
| For RowScanner_PinsArray, RowScanner_PinsArray::READ_PIN_COUNT | |||
| For RowScanner_SPIShiftRegisters, RowScanner_SPIShiftRegisters::KEY_COUNT | |||
| For RowScanner_PinsBitwise, cover the last 1 bit in RowScanner_PinsBitwise::strobePin | |||