MCP23S17 Bufferd
ExioInBuffer.h@6:cc3b65d44e9e, 2016-11-04 (annotated)
- Committer:
- ryood
- Date:
- Fri Nov 04 23:16:41 2016 +0000
- Revision:
- 6:cc3b65d44e9e
- Parent:
- 3:8be680035a08
Add: Test ExioBufferedPinDetect
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ryood | 0:54debc783452 | 1 | /* |
ryood | 0:54debc783452 | 2 | * ExioInBuffer.h |
ryood | 0:54debc783452 | 3 | * |
ryood | 0:54debc783452 | 4 | * Created: 2016.11.05 |
ryood | 0:54debc783452 | 5 | * |
ryood | 0:54debc783452 | 6 | */ |
ryood | 0:54debc783452 | 7 | |
ryood | 0:54debc783452 | 8 | #ifndef _EXIOINBUFFER_H_ |
ryood | 0:54debc783452 | 9 | #define _EXIOINBUFFER_H_ |
ryood | 0:54debc783452 | 10 | |
ryood | 0:54debc783452 | 11 | #include "mbed.h" |
ryood | 0:54debc783452 | 12 | #include "rtos.h" |
ryood | 0:54debc783452 | 13 | #include "ExioMcp23s17.h" |
ryood | 0:54debc783452 | 14 | |
ryood | 0:54debc783452 | 15 | class ExioInBuffer { |
ryood | 0:54debc783452 | 16 | public: |
ryood | 3:8be680035a08 | 17 | ExioInBuffer(ExioMcp23s17* device, ExioPort port) : |
ryood | 0:54debc783452 | 18 | _device(device), |
ryood | 0:54debc783452 | 19 | _port(port), |
ryood | 0:54debc783452 | 20 | _buffer(0x00), |
ryood | 0:54debc783452 | 21 | _timer(&ExioInBuffer::threadHelper, osTimerPeriodic, (void *)this) |
ryood | 0:54debc783452 | 22 | { |
ryood | 1:f00bf8a84d56 | 23 | // set the port as input |
ryood | 2:930752799dad | 24 | _device->ioDirection(_port, 0xff); |
ryood | 2:930752799dad | 25 | _device->ioPullup(_port, 0xff); |
ryood | 2:930752799dad | 26 | _device->ioPolarity(_port, 0xff); |
ryood | 0:54debc783452 | 27 | } |
ryood | 0:54debc783452 | 28 | |
ryood | 0:54debc783452 | 29 | uint8_t readPort() |
ryood | 0:54debc783452 | 30 | { |
ryood | 0:54debc783452 | 31 | return _buffer; |
ryood | 0:54debc783452 | 32 | } |
ryood | 0:54debc783452 | 33 | |
ryood | 3:8be680035a08 | 34 | void run(uint32_t millsec) |
ryood | 0:54debc783452 | 35 | { |
ryood | 3:8be680035a08 | 36 | _timer.start(millsec); |
ryood | 0:54debc783452 | 37 | } |
ryood | 0:54debc783452 | 38 | |
ryood | 0:54debc783452 | 39 | void stop() |
ryood | 0:54debc783452 | 40 | { |
ryood | 0:54debc783452 | 41 | _timer.stop(); |
ryood | 0:54debc783452 | 42 | } |
ryood | 0:54debc783452 | 43 | |
ryood | 0:54debc783452 | 44 | protected: |
ryood | 0:54debc783452 | 45 | ExioMcp23s17* _device; |
ryood | 0:54debc783452 | 46 | ExioPort _port; |
ryood | 0:54debc783452 | 47 | uint8_t _buffer; |
ryood | 0:54debc783452 | 48 | RtosTimer _timer; |
ryood | 0:54debc783452 | 49 | |
ryood | 0:54debc783452 | 50 | static void threadHelper(const void* arg) |
ryood | 0:54debc783452 | 51 | { |
ryood | 0:54debc783452 | 52 | ExioInBuffer* instance = (ExioInBuffer*)arg; |
ryood | 0:54debc783452 | 53 | instance->update(); |
ryood | 0:54debc783452 | 54 | } |
ryood | 0:54debc783452 | 55 | |
ryood | 0:54debc783452 | 56 | void update() { |
ryood | 0:54debc783452 | 57 | _buffer = _device->readPort(_port); |
ryood | 0:54debc783452 | 58 | } |
ryood | 0:54debc783452 | 59 | }; |
ryood | 0:54debc783452 | 60 | |
ryood | 0:54debc783452 | 61 | #endif //_EXIOINBUFFER_H_ |