Direct division by 65536 does not help for negative temperatures

24 bits at 25C : 1550204/ 65536 = 23.65
24 bits at -15C : 15733864/65536 = 240.07

Hi,
Barometer temperature sensor range is from -40..85°C but the calculation is only for positive values.

  if (rslt == BMP5_OK)
    {
        raw_data_t = (int32_t)((uint32_t)(reg_data[2] << 16) | (uint16_t)(reg_data[1] << 8) | reg_data[0]);

#ifdef BMP5_USE_FIXED_POINT

        /* Division by 2^16(whose equivalent value is 65536) is performed to get temperature data and followed by fixed point digit
         * precision in deg C
         */
        sensor_data->temperature =
            (int64_t)((raw_data_t / (int64_t)65536.0) * (power(10, BMP5_FIXED_POINT_DIGIT_PRECISION)));
#else

        /* Division by 2^16(whose equivalent value is 65536) is performed to get temperature data in deg C */
        sensor_data->temperature = (float)(raw_data_t / 65536.0);
#endif

On my board BMP585 module with my STM32G030 cpu, in the bmp5_init(), I can read the chip id as 0x51, but then the NVM status reg (0x28) always return 0, which will result in a power fail error. What can I do next?

Hi Folks - This does not work for many toolchains and generally considered not great coding.
Can you make sure to use distinct names for functions and types?
Thanks!
Best Regards, Dave

PS: See bmp.h line 312