Diff: BMP280.h

Revision:

0:c2987bafde6c

Child:

1:9bb59e83df7a

diff -r 000000000000 -r c2987bafde6c BMP280.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BMP280.h	Fri Jun 02 06:22:51 2017 +0000
@@ -0,0 +1,64 @@
+#ifndef BMP280_H
+#define BMP280_H
+
+// Register define
+#define BMP280_ADDR             0xEE    // BMP280 i2c address
+
+#define BMP280_REG_CALIBRATION  0x88    // calibration register start
+#define BMP280_REG_ID           0xD0    // read out is 0x58
+#define BMP280_REG_RESET        0xE0    // write value 0xB6 will process power-on-reset other value is not work
+#define BMP280_REG_STATUS       0xF3    // indicate status of the device
+#define BMP280_REG_CTRL_MEAS    0xF4    // config options of the device
+#define BMP280_REG_CONFIG       0xF5    // set rate, filted and interface options of device
+#define BMP280_REG_PRESS        0xF7    // pressure measurement out data 0xF7~0xF9
+#define BMP280_REG_TMEP         0xFA    // temperature measurment out data 0xFA~0xFC
+
+// OSSR Data
+#define BMP280_OSSR_SKIP        0x00    // Skipped output set to 0x80000
+#define BMP280_OSSR_OV1         0x01    // oversampling x1
+#define BMP280_OSSR_OV2         0x02    // oversampling x2
+#define BMP280_OSSR_OV4         0x03    // oversampling x4
+#define BMP280_OSSR_OV8         0x04    // oversampling x8
+#define BMP280_OSSR_OV16        0x05    // oversampling x16
+
+// wait to read out time
+// T_SB
+#define BMP280_T_SB0            0x00    // 0.5ms
+#define BMP280_T_SB62           0x01    // 62.5ms
+#define BMP280_T_SB125          0x02    // 125ms
+#define BMP280_T_SB250          0x03    // 250ms
+#define BMP280_T_SB500          0x04    // 500ms
+#define BMP280_T_SB1000         0x05    // 1000ms
+#define BMP280_T_SB2000         0x06    // 2000ms
+#define BMP280_T_SB4000         0x07    // 4000ms
+
+// Power Mode
+#define BMP280_POWER_SLEEP      0b00
+#define BMP280_POWER_FORCE      0b01
+#define BMP280_POWER_NORMAL     0b11
+
+
+
+#include "mbed.h"
+
+class BMP280 {
+    
+    public:
+        BMP280(I2C& i2c);
+        int init(char ctrl_meas  = 0x6F, char config = 0x70);
+        int readData(float *tempC, int *pressPa);
+        
+        
+    protected:
+        I2C m_i2c;
+        Serial pc;
+        unsigned short dig_T1,dig_P1;
+        short dig_T2,dig_T3,dig_P2,dig_P3,dig_P4,dig_P5,dig_P6,dig_P7,dig_P8,dig_P9;
+        void write(char reg, char ctrl);
+        void read(char reg, char *data, int length);
+        
+    private:
+    
+};
+
+#endif
\ No newline at end of file