wolfv6
7 years ago
4 changed files with 54 additions and 3 deletions
+ 2
- 2
examples/keybrd_MCP23018/keybrd_MCP23018.ino
View File
| @@ -39,7 +39,7 @@ DESTINATION PIN PIN_NUMBER PIN DESTINATION | |||
| //right matrix | |||
| #include <Port_MCP23018.h> | |||
| #include <Scanner_IOE.h> | |||
| #include <LED_Port.h> | |||
| #include <LED_PortOpenDrain.h> | |||
| // ============ SPEED CONFIGURATION ============ | |||
| ScanDelay scanDelay(9000); | |||
| @@ -60,7 +60,7 @@ Port_MCP23018 portB(IOE_ADDR, 1, 0); | |||
| Scanner_IOE scanner_R(LOW, portB, portA); | |||
| // ================= RIGHT LED ================= | |||
| LED_Port LED_capsLck(portA, 1<<7); | |||
| LED_PortOpenDrain LED_capsLck(portA, 1<<7); | |||
| // =================== CODES =================== | |||
| Code_Sc s_a(KEY_A); | |||
+ 4
- 1
src/LED_Port.h
View File
| @@ -5,9 +5,12 @@ | |||
| #include <LEDInterface.h> | |||
| #include <PortWriteInterface.h> | |||
| /* An LED_Port object is an I/O expander pin that is connected to an LED indicator light. | |||
| /* An LED_Port object is an I/O expander output pin that is connected to an LED indicator light. | |||
| LED_Port functions turn LED on and off. | |||
| This is for push-pull ouput pins. | |||
| For LEDs connected to open drain output types, use LED_Port class. | |||
| Example initialization: | |||
| const uint8_t IOE_ADDR = 0x20; | |||
| Port_MCP23S17 portA(IOE_ADDR, 0, 1<<0 | 1<<1 ); | |||
+ 12
- 0
src/LED_PortOpenDrain.cpp
View File
| @@ -0,0 +1,12 @@ | |||
| #include "LED_PortOpenDrain.h" | |||
| /* functions are like LED_Port, but writeLow() writeHigh() are swapped. | |||
| */ | |||
| void LED_PortOpenDrain::on() | |||
| { | |||
| refPort.writeLow(pin); | |||
| } | |||
| void LED_PortOpenDrain::off() | |||
| { | |||
| refPort.writeHigh(pin); | |||
| } | |||
+ 36
- 0
src/LED_PortOpenDrain.h
View File
| @@ -0,0 +1,36 @@ | |||
| #ifndef LED_PORT_H | |||
| #define LED_PORT_H | |||
| #include <Arduino.h> | |||
| #include <inttypes.h> | |||
| #include <LEDInterface.h> | |||
| #include <PortWriteInterface.h> | |||
| /* An LED_PortOpenDrain object is an I/O expander ouput pin that is connected to an LED. | |||
| LED_PortOpenDrain functions turn LED on and off. | |||
| This is for open drain ouput pins. | |||
| For LEDs connected to push-pull output types, use LED_Port class. | |||
| Example initialization: | |||
| const uint8_t IOE_ADDR = 0x20; | |||
| Port_MCP23S17 portA(IOE_ADDR, 0, 1<<0 | 1<<1 ); | |||
| LED_PortOpenDrain LED_fn(portA, 1<<5); | |||
| Example initialization: | |||
| Port_ShiftRegs shiftRegs(8); | |||
| LED_PortOpenDrain LED_fn(shiftRegs, 1<<6); | |||
| */ | |||
| class LED_PortOpenDrain : public LEDInterface | |||
| { | |||
| private: | |||
| PortWriteInterface& refPort; | |||
| const uint8_t pin; //bit pattern, 1 is pin connected to LED | |||
| public: | |||
| LED_PortOpenDrain(PortWriteInterface& refPort, const uint8_t pin) | |||
| : refPort(refPort), pin(pin) {} | |||
| virtual void on(); | |||
| virtual void off(); | |||
| }; | |||
| #endif | |||