ADXL357 Activity Interrupt Issue

static int adxl357_simple(char* args, char* response){
    UNUSED(args); UNUSED(response);
    char str[64];

    UART_PutString("Configuring ADXL357...\r\n");

    // === Step 1: Basic Configuration ===
    
    uint8_t i2c_speed = 0x01;    // Setting I2C Speed to 400KHz
    I2CWriteBytes(0x1D, 0x2C, 1, &i2c_speed);

    uint8_t odr_value = 0x0A;    // Output Data Rate set to 500Hz
    I2CWriteBytes(0x1D, 0x28, 1, &odr_value);
    
    uint8_t act_en = 0x01;    // Activity enable register
    I2CWriteBytes(0x1D, 0x24, 1, &act_en);

    uint8_t act_count = 0x01;    // Activity count
    I2CWriteBytes(0x1D, 0x27, 1, &act_count);

    uint8_t intr_ftn = 0x18;    // Interrupt function setting
    I2CWriteBytes(0x1D, 0x2A, 1, &intr_ftn);
    
     uint8_t act_th_h = 0x13;    // Threshold Register High
    I2CWriteBytes(0x1D, 0x25, 1, &act_th_h);

    uint8_t act_th_l = 0x88;    // Threshold Register Low
    I2CWriteBytes(0x1D, 0x26, 1, &act_th_l);
    
    uint8_t x_offset_h = 0xFF;    // X-axis offset High (-85 value in 2's compliment)
    I2CWriteBytes(0x1D, 0x1E, 1, &x_offset_h);
    
    uint8_t x_offset_l = 0xAB;    // X-axis offset Low (-85 value in 2's compliment)
    I2CWriteBytes(0x1D, 0x1F, 1, &x_offset_l);
    
    uint8_t y_offset_h = 0xFF;    // Y-axis offset High (-125 value in 2's compliment)
    I2CWriteBytes(0x1D, 0x20, 1, &y_offset_h);
    
    uint8_t y_offset_l = 0x83;    // Y-axis offset Low (-125 value in 2's compliment)
    I2CWriteBytes(0x1D, 0x21, 1, &y_offset_l);
    
    uint8_t z_offset_h = 0x00;    // Z-axis offset High (185 value in 2's compliment)
    I2CWriteBytes(0x1D, 0x22, 1, &z_offset_h);
    
    uint8_t z_offset_l = 0xB9;    // Z-axis offset Low (185 value in 2's compliment)
    I2CWriteBytes(0x1D, 0x23, 1, &z_offset_l);
    
    uint8_t measurement_value = 0x00;    // Measurement
    I2CWriteBytes(0x1D, 0x2D, 1, &measurement_value);

    UART_PutString("Registers configured.\r\n");

    // === Step 2: Loop and read X/Y/Z every 2s ===
    while (1)
    {
        uint8_t buf[9];
        uint8_t intr_stat;
        int32_t x, y, z;
        float x_g, y_g, z_g;
       

        // Burst read 9 bytes: XDATA3..ZDATA1
        I2CReadBytes(0x1D, 0x08, 9, buf);

        // X-axis
        x = ((int32_t)buf[0] << 16) | ((int32_t)buf[1] << 8) | buf[2];
        x >>= 4;
        if (x & 0x80000) x |= 0xFFF00000;

        // Y-axis
        y = ((int32_t)buf[3] << 16) | ((int32_t)buf[4] << 8) | buf[5];
        y >>= 4;
        if (y & 0x80000) y |= 0xFFF00000;

        // Z-axis
        z = ((int32_t)buf[6] << 16) | ((int32_t)buf[7] << 8) | buf[8];
        z >>= 4;
        if (z & 0x80000) z |= 0xFFF00000;
        
        x_g = convert_to_g(x, sensitivity);
        y_g = convert_to_g(y, sensitivity);
        z_g = convert_to_g(z, sensitivity);
        
        char str[64];
        sprintf(str, "X=%.3f g  Y=%.3f g  Z=%.3f g\r\n", x_g, y_g, z_g);
        UART_PutString(str);
        
        //sprintf(str, "X=%ld  Y=%ld  Z=%ld\r\n", x, y, z);
        //UART_PutString(str);
        
        //char str[64];
        //sprintf(str, "Sensitivity =%.3f \r\n", sensitivity);
        //UART_PutString(str);
        
        UART_PutString("*****************************\r\n");
        
        I2CReadBytes(0x1D, 0x04, 1, &intr_stat);
        sprintf(str, "ADXL357 Interrupt Status = 0x%02X\r\n", intr_stat);
       UART_PutString(str);
        
        UART_PutString("-----------------------------\r\n"); // separator line

        //CyDelay(1000); // wait 1 seconds
    }

    return 1;
}