Error display floating point with SES (Segger Embedded Studio)

[Michel]

I'm trying the get the development kit of the nRF52832 (PCA10040) displaying a floating point value. I read several postings of this problem, but non of the suggested solutions is working for me.

I changed the project settings for the printf to Float.

I tried:

float measurement = value / 100;                                            // where value is about 289, so measurement should be 2.89

NRF_LOG_INFO("Voltage: "NRF_LOG_FLOAT_MARKER" V",NRF_LOG_FLOAT(measurement));

The NRF_LOG_INFO and printf both don't show me a correct floating point result. I don't know where to look anymore. Anyone a hint?

I'm using Segger Embedded Studio v3.34a with SDK 14.2.0_17b948a and PCA10040 v0.9.0

  <configuration
    arm_fp_abi="Hard"
    arm_fpu_type="FPv4-SP-D16"
    c_preprocessor_definitions="DEBUG; DEBUG_NRF"
    c_user_include_directories="
    gcc_debugging_level="Level 3"
    gcc_optimization_level="None"
    linker_printf_fp_enabled="Float"
    linker_printf_width_precision_supported="Yes"

[Mttrinh]

Hi,

What kind of type is your variable "value"? Is it a float?

I tried to print out a float and it seems to work fine over here.

[Michel]

Thank you for your response. "value" is a uint32_t number.

Because of your comment I found two working solutions for my issue.

float measurement = (float)value / 100;

or

float measurement = value / 100.0;