LPS22HBのライブラリ
Dependents: HYBRYD2018_IZU_ROCKET Hybrid_IZU201811_STMBBM_v4 Hybrid_IZU2019
pqLPS22HB_lib.cpp
- Committer:
- Sigma884
- Date:
- 2017-06-26
- Revision:
- 0:52880f880b81
- Child:
- 1:42cd33e0f174
File content as of revision 0:52880f880b81:
#include "pqLPS22HB_lib.h" #include "mbed.h" /********** コンストラクタ ・AD0がHIGHかLOWかを選択 ・使用するI2Cを選択 **********/ pqLPS22HB_lib :: pqLPS22HB_lib(AD0 ad0, I2C &userI2C){ slave = ad0; i2c = &userI2C; } /********** センサー起動(void) ・データ更新レートを選択(1, 10, 25, 50, 75) **********/ void pqLPS22HB_lib :: begin(int drate){ cmd_ctrl_reg1[0] = CTRL_REG1; switch(drate){ case 1: cmd_ctrl_reg1[1] = 0x10; break; case 10: cmd_ctrl_reg1[1] = 0x20; break; case 25: cmd_ctrl_reg1[1] = 0x30; break; case 50: cmd_ctrl_reg1[1] = 0x40; break; case 75: cmd_ctrl_reg1[1] = 0x50; break; default: cmd_ctrl_reg1[1] = 0x00; } i2c -> frequency(400000); i2c -> write(slave, cmd_ctrl_reg1, 2, true); wait(0.5f); } /********** FIFO設定(void)(未実装) ・モードを選択(したい) ・FIFO ウォーターマークレベルを選択(したい) **********/ void pqLPS22HB_lib :: setFIFO(){ //?? cmd_ctrl_reg2[0] = CTRL_REG2; cmd_ctrl_reg2[1] = 0x40; cmd_fifo_ctrl[0] = FIFO_CTRL; cmd_fifo_ctrl[1] = 0x5F; i2c -> write(slave, cmd_ctrl_reg2, 2, true); i2c -> write(slave, cmd_fifo_ctrl, 2, true); } /********** Who Am I(int) 接続できているかを判定 接続OK:0 接続NG:-1 **********/ int pqLPS22HB_lib :: whoAmI(){ cmd_who_am_i[0] = WHO_AM_I; i2c -> write(slave, cmd_who_am_i, 1, true); i2c -> read(slave | 1, &cmd_who_am_i[0], 1, true); if(cmd_who_am_i[0] == 0xB1){ return 0; } else{ return -1; } } /********** 気圧を取得(float) **********/ float pqLPS22HB_lib :: getPres(){ cmd_p[0] = P_XL; cmd_p[1] = P_L; cmd_p[2] = P_H; for(int c1 = 0; c1 < 3; c1 ++){ i2c -> write(slave, &cmd_p[c1], 1, true); i2c -> read(slave | 1, &cmd_p[c1], 1, true); data_p[c1] = (int)cmd_p[c1]; } return (float)(data_p[0] | data_p[1] << 8 | data_p[2] << 16) / 4096.0f; } /********** 温度を取得(float) **********/ float pqLPS22HB_lib :: getTemp(){ cmd_t[0] = T_L; cmd_t[1] = T_H; for(int c1 = 0; c1 < 2; c1 ++){ i2c -> write(slave, &cmd_t[c1], 1, true); i2c -> read(slave | 1, &cmd_t[c1], 1, true); data_t[c1] = (int)cmd_t[c1]; } if(data_t[1] >= 128){ return 20.0 - (float)(65536 - (data_t[0] | data_t[1] << 8)) / 480.0f; } else{ return 20.0 + (float)(data_t[0] | data_t[1] << 8) / 480.0f; } }