/**
* @brief Enter the shutdown mode for LPS25H
* @retval PRESSURE_OK in case of success, an error code otherwise
*/
static PRESSURE_StatusTypeDef LPS25H_PowerOff(void)
{
uint8_t tmpreg;
/* Read the register content */
if(LPS25H_IO_Read(&tmpreg, LPS25H_SlaveAddress, LPS25H_CTRL_REG1_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
/* Reset the power down bit */
tmpreg &= ~(LPS25H_MODE_ACTIVE);
/* Write register */
if(LPS25H_IO_Write(&tmpreg, LPS25H_SlaveAddress, LPS25H_CTRL_REG1_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
return PRESSURE_OK;
}
/**
* @brief Reboot memory content of LPS25H
* @retval PRESSURE_OK in case of success, an error code otherwise
*/
static PRESSURE_StatusTypeDef LPS25H_RebootCmd(void)
{
uint8_t tmpreg;
/* Read CTRL_REG5 register */
if(LPS25H_IO_Read(&tmpreg, LPS25H_SlaveAddress, LPS25H_CTRL_REG2_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
/* Enable or Disable the reboot memory */
tmpreg |= LPS25H_RESET_MEMORY;
/* Write value to MEMS CTRL_REG5 regsister */
if(LPS25H_IO_Write(&tmpreg, LPS25H_SlaveAddress, LPS25H_CTRL_REG2_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
return PRESSURE_OK;
}
/**
* @brief Exit the shutdown mode for LPS25H
* @retval PRESSURE_OK in case of success, an error code otherwise
*/
PRESSURE_StatusTypeDef LPS25H::LPS25H_PowerOn(void)
{
uint8_t tmpreg;
/* Read the register content */
if(LPS25H_IO_Read(&tmpreg, LPS25H_CTRL_REG1_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
/* Set the power down bit */
tmpreg |= LPS25H_MODE_ACTIVE;
/* Write register */
if(LPS25H_IO_Write(&tmpreg, LPS25H_CTRL_REG1_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
return PRESSURE_OK;
}
/**
* @brief Set LPS25H Initialization
* @param LPS25H_Init the configuration setting for the LPS25H
* @retval PRESSURE_OK in case of success, an error code otherwise
*/
static PRESSURE_StatusTypeDef LPS25H_Init(PRESSURE_InitTypeDef *LPS25H_Init)
{
uint8_t tmp1 = 0x00;
/* Configure the low level interface ---------------------------------------*/
if(LPS25H_IO_Init() != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
if(LPS25H_PowerOn() != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
if(LPS25H_IO_Read(&tmp1, LPS25H_SlaveAddress, LPS25H_CTRL_REG1_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
/* Output Data Rate selection */
tmp1 &= ~(LPS25H_ODR_MASK);
tmp1 |= LPS25H_Init->OutputDataRate;
/* Interrupt circuit selection */
tmp1 &= ~(LPS25H_DIFF_EN_MASK);
tmp1 |= LPS25H_Init->DiffEnable;
/* Block Data Update selection */
tmp1 &= ~(LPS25H_BDU_MASK);
tmp1 |= LPS25H_Init->BlockDataUpdate;
/* Serial Interface Mode selection */
tmp1 &= ~(LPS25H_SPI_SIM_MASK);
tmp1 |= LPS25H_Init->SPIMode;
if(LPS25H_IO_Write(&tmp1, LPS25H_SlaveAddress, LPS25H_CTRL_REG1_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
if(LPS25H_IO_Read(&tmp1, LPS25H_SlaveAddress, LPS25H_RES_CONF_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
/* Serial Interface Mode selection */
tmp1 &= ~(LPS25H_P_RES_MASK);
tmp1 |= LPS25H_Init->PressureResolution;
/* Serial Interface Mode selection */
tmp1 &= ~(LPS25H_T_RES_MASK);
tmp1 |= LPS25H_Init->TemperatureResolution;
if(LPS25H_IO_Write(&tmp1, LPS25H_SlaveAddress, LPS25H_RES_CONF_ADDR, 1) != PRESSURE_OK)
{
return PRESSURE_ERROR;
}
LPS25H_IO_ITConfig();
return PRESSURE_OK;
}
