Printing float number with nrf_cli_fprintf function

[User1321]

I am using the nRF52840 dongle to gather data via peripherals and send it via a serial port similarly as the cli example, for that I'm using the nrf_cli_fprintf() function. For integer is working fine but errors appear when i try to print a float value, no value is printed there.

I am setting in the Makefile: 

LDFLAGS += -u _printf_float

LDFLAGS += --specs=nano.specs -lc -lnosys

Is there anything else needed? I know we can make some workaround to print the float value but I wanted to try this way first. 

Thank you in advance. 

[Jørgen Holmefjord]

What error are you getting when trying to print float? Can you post the code you use for printing float?

[User1321]

I am not getting any error, just that, while using the print function, I don't get any value in the %f section, only in the %d. I am using the SDK15.

float cont = 4.55;

nrf_cli_fprintf(&m_cli_cdc_acm, NRF_CLI_NORMAL,"\n Dongle-Hub %f,  %d", cont, cont);

I had a similar issue with the nRF52832 and the SDK13 but after adding the above mentioned flags, it was solved. 

What should I do in this case? 

[Jakub Rzeszutko]

Hi

function `nrf_cli_fprintf` does not support printing float. If you would like to print floats you can either manualy print it from integer and rest of division or you can implement float handling in:

sdk\nrf5\external\fprintf\nrf_fprintf_format.c  -> function nrf_fprintf_fmt. You need to add case 'f'.

Implementation can be found over internet. If you could wait few days I can prepare something.

[noob_with_ucontrollers]

Hi, I need to print a float number, I'm having the same issue, my float isn't printed at all. 
But my IDE is embedded studio. There is a lot of posts on float values in eclipse and uVision but I haven't come across any material for doing it in embedded studio.

Any suggestions? I'm using the NRF_LOG_INFO