BMP280から気圧データを取得します。updateで更新動作、getpressで値を読み出します
BMP280.h@1:a65c7f637b1e, 2018-02-13 (annotated)
- Committer:
- kim1212
- Date:
- Tue Feb 13 04:19:43 2018 +0000
- Revision:
- 1:a65c7f637b1e
- Parent:
- 0:54d7f18450e6
?????????????????
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kim1212 | 0:54d7f18450e6 | 1 | #ifndef BMP280_H |
kim1212 | 0:54d7f18450e6 | 2 | #define BMP280_H |
kim1212 | 0:54d7f18450e6 | 3 | /* |
kim1212 | 0:54d7f18450e6 | 4 | #include "mbed.h" |
kim1212 | 0:54d7f18450e6 | 5 | |
kim1212 | 0:54d7f18450e6 | 6 | #include "BMP280.h" |
kim1212 | 0:54d7f18450e6 | 7 | |
kim1212 | 0:54d7f18450e6 | 8 | BMP280 bmp(D11,D12,D13,D10); |
kim1212 | 0:54d7f18450e6 | 9 | |
kim1212 | 0:54d7f18450e6 | 10 | int main() { |
kim1212 | 0:54d7f18450e6 | 11 | |
kim1212 | 1:a65c7f637b1e | 12 | bmp.init(OSR_1,OSR_4,IIR_0); |
kim1212 | 0:54d7f18450e6 | 13 | |
kim1212 | 0:54d7f18450e6 | 14 | |
kim1212 | 0:54d7f18450e6 | 15 | while(1) { |
kim1212 | 0:54d7f18450e6 | 16 | while(bmp.update()!=1); |
kim1212 | 0:54d7f18450e6 | 17 | printf("%f\r\n",bmp.getpress()); |
kim1212 | 0:54d7f18450e6 | 18 | wait(0.1); |
kim1212 | 0:54d7f18450e6 | 19 | } |
kim1212 | 0:54d7f18450e6 | 20 | } |
kim1212 | 0:54d7f18450e6 | 21 | */ |
kim1212 | 0:54d7f18450e6 | 22 | |
kim1212 | 0:54d7f18450e6 | 23 | #define OSR_1 0b001 |
kim1212 | 0:54d7f18450e6 | 24 | #define OSR_2 0b010 |
kim1212 | 0:54d7f18450e6 | 25 | #define OSR_4 0b011 |
kim1212 | 0:54d7f18450e6 | 26 | #define OSR_8 0b100 |
kim1212 | 0:54d7f18450e6 | 27 | #define OSR_16 0b101 |
kim1212 | 0:54d7f18450e6 | 28 | |
kim1212 | 0:54d7f18450e6 | 29 | #define IIR_0 0b000 |
kim1212 | 0:54d7f18450e6 | 30 | #define IIR_4 0b100 |
kim1212 | 1:a65c7f637b1e | 31 | #define IIR_16 0b111 |
kim1212 | 0:54d7f18450e6 | 32 | |
kim1212 | 0:54d7f18450e6 | 33 | |
kim1212 | 0:54d7f18450e6 | 34 | |
kim1212 | 0:54d7f18450e6 | 35 | #include "mbed.h" |
kim1212 | 0:54d7f18450e6 | 36 | |
kim1212 | 0:54d7f18450e6 | 37 | class BMP280 { |
kim1212 | 0:54d7f18450e6 | 38 | |
kim1212 | 0:54d7f18450e6 | 39 | public: |
kim1212 | 0:54d7f18450e6 | 40 | BMP280(PinName mosi,PinName miso,PinName sck,PinName _cs); |
kim1212 | 1:a65c7f637b1e | 41 | void init(char t_osr,char p_osr,char IIR); |
kim1212 | 0:54d7f18450e6 | 42 | char readbyte(char adr); |
kim1212 | 0:54d7f18450e6 | 43 | void writebyte(char adr,char data); |
kim1212 | 0:54d7f18450e6 | 44 | void readnbyte(char adr,char *data,char num); |
kim1212 | 0:54d7f18450e6 | 45 | |
kim1212 | 0:54d7f18450e6 | 46 | int bmp280_compensate_T_int32(int adc_T); |
kim1212 | 0:54d7f18450e6 | 47 | unsigned int bmp280_compensate_P_int64(int adc_P); |
kim1212 | 0:54d7f18450e6 | 48 | bool update(); |
kim1212 | 1:a65c7f637b1e | 49 | unsigned int getpress(); |
kim1212 | 0:54d7f18450e6 | 50 | |
kim1212 | 0:54d7f18450e6 | 51 | |
kim1212 | 0:54d7f18450e6 | 52 | private: |
kim1212 | 0:54d7f18450e6 | 53 | SPI bmp; |
kim1212 | 0:54d7f18450e6 | 54 | DigitalOut cs; |
kim1212 | 0:54d7f18450e6 | 55 | int t_fine; |
kim1212 | 0:54d7f18450e6 | 56 | unsigned short dig_T1,dig_P1; |
kim1212 | 0:54d7f18450e6 | 57 | short dig_T2,dig_T3,dig_P2,dig_P3,dig_P4,dig_P5,dig_P6,dig_P7,dig_P8,dig_P9; |
kim1212 | 0:54d7f18450e6 | 58 | unsigned int press; |
kim1212 | 0:54d7f18450e6 | 59 | |
kim1212 | 1:a65c7f637b1e | 60 | char _t_osr; |
kim1212 | 1:a65c7f637b1e | 61 | char _p_osr; |
kim1212 | 1:a65c7f637b1e | 62 | char _IIR; |
kim1212 | 0:54d7f18450e6 | 63 | |
kim1212 | 0:54d7f18450e6 | 64 | |
kim1212 | 0:54d7f18450e6 | 65 | }; |
kim1212 | 0:54d7f18450e6 | 66 | |
kim1212 | 0:54d7f18450e6 | 67 | |
kim1212 | 0:54d7f18450e6 | 68 | |
kim1212 | 0:54d7f18450e6 | 69 | |
kim1212 | 0:54d7f18450e6 | 70 | #endif |