STM32F4 accelerometer

Question

I need to read some data from accelerometer LIS3DSH in STM32F4 Discovery. I have this main code:

uint8_t writeData(uint8_t data) {

    while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET)
        ;
    SPI_I2S_SendData(SPI1, data);

    while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET)
        ;
    return SPI_I2S_ReceiveData(SPI1);
}

void setReg(uint8_t address, uint8_t value) {
    GPIO_ResetBits(GPIOE,GPIO_Pin_3);
    writeData(address);
    writeData(value);
    GPIO_SetBits(GPIOE,GPIO_Pin_3);
}

uint8_t getReg(uint8_t address) {
    uint8_t data=0;
    address|=(1<<7);
    GPIO_ResetBits(GPIOE,GPIO_Pin_3);
    writeData(address);
    data = writeData(0x00);
    GPIO_SetBits(GPIOE,GPIO_Pin_3);
    return data;
}

int main(void)
{
    char str[4];

    usart_init(); 
    spi_init(); 

    // Turn on accelerometer
    //setReg(LIS302DL_CTRL_REG1, (1<<PD_CTRL_REG1) );
    LIS3DSH_Init();

    // Read data from three registers
    // and write it to UART
    while(1)
    {
        delay();

        itoa((int8_t) LIS3DSH_Get_X_Out(1),&str);
        send_str(&str);
        send_str(":");
        itoa((int8_t) getReg(LIS302DL_OUT_Y),&str);
        send_str(&str);
        send_str(":");
        itoa((int8_t) getReg(LIS302DL_OUT_Z),&str);
        send_str(&str);
        send_str(" | ");
    }
}

But it recieves only first value. For example:

5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|
5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|5:32:128|
5:32:128|5:32:128|

I use USART2 for reading this data. Can somebody say how to update data in real time? For example if I turn over the board the data will change?

Answer 1

I found it. The power of sensor was not turned on. It solves in register settings (0x2). Thanks everybody for help.