STMPE610 touch sensor driver library
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SPI_STMPE610.h@1:43990f1c0a8b, 2014-11-08 (annotated)
- Committer:
- Rhyme
- Date:
- Sat Nov 08 06:51:34 2014 +0000
- Revision:
- 1:43990f1c0a8b
- Parent:
- 0:68779c92cffa
- Child:
- 2:ee910b63c077
First version with document
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Rhyme | 1:43990f1c0a8b | 1 | /** |
Rhyme | 1:43990f1c0a8b | 2 | * STMPE610 Touch Sensor |
Rhyme | 1:43990f1c0a8b | 3 | * |
Rhyme | 0:68779c92cffa | 4 | * |
Rhyme | 0:68779c92cffa | 5 | */ |
Rhyme | 0:68779c92cffa | 6 | #ifndef SPI_STMPE610_H |
Rhyme | 0:68779c92cffa | 7 | #define SPI_STMPE610_H |
Rhyme | 0:68779c92cffa | 8 | |
Rhyme | 0:68779c92cffa | 9 | #include "mbed.h" |
Rhyme | 0:68779c92cffa | 10 | |
Rhyme | 1:43990f1c0a8b | 11 | |
Rhyme | 1:43990f1c0a8b | 12 | /** SPI_STMPE610 Touch Sensor |
Rhyme | 1:43990f1c0a8b | 13 | * Example: |
Rhyme | 1:43990f1c0a8b | 14 | * @code |
Rhyme | 1:43990f1c0a8b | 15 | * #include "mbed.h" |
Rhyme | 1:43990f1c0a8b | 16 | * #include "SPI_STMPE610.h" |
Rhyme | 1:43990f1c0a8b | 17 | * |
Rhyme | 1:43990f1c0a8b | 18 | * #define PIN_MOSI PTD2 |
Rhyme | 1:43990f1c0a8b | 19 | * #define PIN_MISO PTD3 |
Rhyme | 1:43990f1c0a8b | 20 | * #define PIN_SCLK PTD1 |
Rhyme | 1:43990f1c0a8b | 21 | * #define PIN_CS_TSC PTA13 |
Rhyme | 1:43990f1c0a8b | 22 | * #define PIN_TSC_INTR PTC9 |
Rhyme | 0:68779c92cffa | 23 | * |
Rhyme | 1:43990f1c0a8b | 24 | * SPI_STMPE610 TSC(PIN_MOSI, PIN_MISO, PIN_SCLK, PIN_CS_TSC) ; |
Rhyme | 0:68779c92cffa | 25 | * |
Rhyme | 1:43990f1c0a8b | 26 | * int main() |
Rhyme | 1:43990f1c0a8b | 27 | * { |
Rhyme | 1:43990f1c0a8b | 28 | * uint16_t touched, x, y, z ; |
Rhyme | 1:43990f1c0a8b | 29 | * printf("Test SPI STMPE610\n\r") ; |
Rhyme | 1:43990f1c0a8b | 30 | * while (true) { |
Rhyme | 1:43990f1c0a8b | 31 | * touched = TSC.getRAWPoint(&x, &y, &z) ; |
Rhyme | 1:43990f1c0a8b | 32 | * if (touched) { |
Rhyme | 1:43990f1c0a8b | 33 | * printf("x = %d, y = %d, z = %d\n\r", x, y, z) ; |
Rhyme | 1:43990f1c0a8b | 34 | * } |
Rhyme | 1:43990f1c0a8b | 35 | * wait(0.1) ; |
Rhyme | 1:43990f1c0a8b | 36 | * } |
Rhyme | 1:43990f1c0a8b | 37 | * } |
Rhyme | 1:43990f1c0a8b | 38 | * @endcode |
Rhyme | 0:68779c92cffa | 39 | */ |
Rhyme | 0:68779c92cffa | 40 | |
Rhyme | 0:68779c92cffa | 41 | class SPI_STMPE610 |
Rhyme | 0:68779c92cffa | 42 | { |
Rhyme | 0:68779c92cffa | 43 | public: |
Rhyme | 0:68779c92cffa | 44 | /** |
Rhyme | 0:68779c92cffa | 45 | * STMPE610 constructor |
Rhyme | 0:68779c92cffa | 46 | * |
Rhyme | 0:68779c92cffa | 47 | * @param mosi SPI_MOSI pin |
Rhyme | 0:68779c92cffa | 48 | * @param miso SPI_MISO pin |
Rhyme | 0:68779c92cffa | 49 | * @param sclk SPI_CLK pin |
Rhyme | 0:68779c92cffa | 50 | * @param cs SPI_CS pin |
Rhyme | 0:68779c92cffa | 51 | */ |
Rhyme | 1:43990f1c0a8b | 52 | |
Rhyme | 0:68779c92cffa | 53 | SPI_STMPE610(PinName mosi, PinName miso, PinName sclk, PinName cs) ; |
Rhyme | 0:68779c92cffa | 54 | |
Rhyme | 1:43990f1c0a8b | 55 | /** |
Rhyme | 1:43990f1c0a8b | 56 | * Destructor |
Rhyme | 1:43990f1c0a8b | 57 | */ |
Rhyme | 0:68779c92cffa | 58 | ~SPI_STMPE610() ; |
Rhyme | 0:68779c92cffa | 59 | |
Rhyme | 0:68779c92cffa | 60 | /* |
Rhyme | 0:68779c92cffa | 61 | * some member functions here (yet to be written) |
Rhyme | 0:68779c92cffa | 62 | */ |
Rhyme | 0:68779c92cffa | 63 | |
Rhyme | 0:68779c92cffa | 64 | SPI m_spi; |
Rhyme | 0:68779c92cffa | 65 | DigitalOut m_cs ; |
Rhyme | 0:68779c92cffa | 66 | int _mode ; |
Rhyme | 0:68779c92cffa | 67 | |
Rhyme | 0:68779c92cffa | 68 | void readRegs(int addr, uint8_t *data, int len) ; |
Rhyme | 0:68779c92cffa | 69 | void writeRegs(uint8_t *data, int len) ; |
Rhyme | 0:68779c92cffa | 70 | uint8_t read8(int addr) ; |
Rhyme | 0:68779c92cffa | 71 | void write8(int addr, uint8_t data) ; |
Rhyme | 0:68779c92cffa | 72 | uint16_t read16(int addr) ; |
Rhyme | 0:68779c92cffa | 73 | void write16(int addr, uint16_t data) ; |
Rhyme | 0:68779c92cffa | 74 | |
Rhyme | 1:43990f1c0a8b | 75 | /** |
Rhyme | 1:43990f1c0a8b | 76 | * get RAW value of x, y, z |
Rhyme | 1:43990f1c0a8b | 77 | * @param *x raw value of x |
Rhyme | 1:43990f1c0a8b | 78 | * @param *y raw value of y |
Rhyme | 1:43990f1c0a8b | 79 | * @param *z raw value of z |
Rhyme | 1:43990f1c0a8b | 80 | * @return if touched |
Rhyme | 1:43990f1c0a8b | 81 | * @note For my device usually the value seems to be between 300 ~ 3000 |
Rhyme | 1:43990f1c0a8b | 82 | * @note when it fails to acquire value the value of 0 seems to be returned |
Rhyme | 1:43990f1c0a8b | 83 | */ |
Rhyme | 0:68779c92cffa | 84 | int getRAWPoint(uint16_t *x, uint16_t *y, uint16_t *z) ; |
Rhyme | 0:68779c92cffa | 85 | |
Rhyme | 0:68779c92cffa | 86 | private: |
Rhyme | 0:68779c92cffa | 87 | } ; |
Rhyme | 1:43990f1c0a8b | 88 | |
Rhyme | 0:68779c92cffa | 89 | #endif /* SPI_STMPE610_H */ |