tm_stm32f4_l3gd20.h

#ifndef TM_L3GD20_H
#define TM_L3GD20_H 110

/* C++ detection */
#ifdef __cplusplus
extern C {
#endif

#include "stm32f4xx.h"
#include "stm32f4xx_rcc.h"
#include "stm32f4xx_gpio.h"
#include "defines.h"
#include "tm_stm32f4_spi.h"
#include "tm_stm32f4_gpio.h"

/* Default SPI, used on STM32F429 Discovery board */
#ifndef L3GD20_SPI
#define L3GD20_SPI                  SPI5
#define L3GD20_SPI_PINSPACK         TM_SPI_PinsPack_1
#endif

/* Default CS pin on STM32F429 Discovery board */
#ifndef L3GD20_CS_PIN
#define L3GD20_CS_PORT              GPIOC
#define L3GD20_CS_PIN               GPIO_PIN_1
#endif

/* Pin macros */
#define L3GD20_CS_LOW               TM_GPIO_SetPinLow(L3GD20_CS_PORT, L3GD20_CS_PIN)
#define L3GD20_CS_HIGH              TM_GPIO_SetPinHigh(L3GD20_CS_PORT, L3GD20_CS_PIN)

/* Identification number */
#define L3GD20_WHO_AM_I             0xD4

/* Registers addresses */
#define L3GD20_REG_WHO_AM_I         0x0F
#define L3GD20_REG_CTRL_REG1        0x20
#define L3GD20_REG_CTRL_REG2        0x21
#define L3GD20_REG_CTRL_REG3        0x22
#define L3GD20_REG_CTRL_REG4        0x23
#define L3GD20_REG_CTRL_REG5        0x24
#define L3GD20_REG_REFERENCE        0x25
#define L3GD20_REG_OUT_TEMP         0x26
#define L3GD20_REG_STATUS_REG       0x27
#define L3GD20_REG_OUT_X_L          0x28
#define L3GD20_REG_OUT_X_H          0x29
#define L3GD20_REG_OUT_Y_L          0x2A
#define L3GD20_REG_OUT_Y_H          0x2B
#define L3GD20_REG_OUT_Z_L          0x2C
#define L3GD20_REG_OUT_Z_H          0x2D
#define L3GD20_REG_FIFO_CTRL_REG    0x2E
#define L3GD20_REG_FIFO_SRC_REG     0x2F
#define L3GD20_REG_INT1_CFG         0x30
#define L3GD20_REG_INT1_SRC         0x31
#define L3GD20_REG_INT1_TSH_XH      0x32
#define L3GD20_REG_INT1_TSH_XL      0x33
#define L3GD20_REG_INT1_TSH_YH      0x34
#define L3GD20_REG_INT1_TSH_YL      0x35
#define L3GD20_REG_INT1_TSH_ZH      0x36
#define L3GD20_REG_INT1_TSH_ZL      0x37
#define L3GD20_REG_INT1_DURATION    0x38

/* Sensitivity factors, datasheet pg. 9 */
#define L3GD20_SENSITIVITY_250      8.75    /* 8.75 mdps/digit */
#define L3GD20_SENSITIVITY_500      17.5    /* 17.5 mdps/digit */
#define L3GD20_SENSITIVITY_2000     70      /* 70 mdps/digit */

typedef struct {
    int16_t X; 
    int16_t Y; 
    int16_t Z; 
} TM_L3GD20_t;

typedef enum {
    TM_L3GD20_Result_Ok,   
    TM_L3GD20_Result_Error 
} TM_L3GD20_Result_t;

typedef enum {
    TM_L3GD20_Scale_250, 
    TM_L3GD20_Scale_500, 
    TM_L3GD20_Scale_2000 
} TM_L3GD20_Scale_t;

TM_L3GD20_Result_t TM_L3GD20_Init(TM_L3GD20_Scale_t scale);

TM_L3GD20_Result_t TM_L3GD20_Read(TM_L3GD20_t* L3DG20_Data);

/* C++ detection */
#ifdef __cplusplus
}
#endif

#endif