CCS/CC2640R2F: Printing 2 decimal places using Display_printf

PCC

Part Number: CC2640R2F

Tool/software: Code Composer Studio

Hi,

I need to print the float value upto 2 decimal places. I am using Display_printf function to print the result. But Display_printf prints upto 4 decimal places by defaults. So I have gone through forum to get the hints. I had tried it by following way but it is not printing anything.

while(1)

{

/*some code*/

sprintf(buf,"%0.2f",averageVal);

Display_printf(display, 1, 0, "Average= %s \r\n",buf);

}

I have also included the stdio.h.

I have also checked the stack size. It is 4096.

I am using SDK v3.10.

why I am not getting any result on display?

over 4 years ago

0 J Lindh over 4 years ago

TI__Guru 57865 points

Hey,

Did you review the driver documentation:

Adding floating point

// Note that for floating point support, the .cfg file must have a line like
// System.extendedFormats = "%$L%$S%$F%f"; // Add '%f' support
Display_printf(handle, 3, 0, "Pi is %f", 3.1415);
Display_close(handle);

0 PCC over 4 years ago in reply to J Lindh

Intellectual 270 points

Hi Joakim,
Thanks for your suggestion.
That file already has %f support.
But I got my solution.

Code Composer Studio™︎

Code Composer Studio forum

CCS/CC2640R2F: Printing 2 decimal places using Display_printf

Adding floating point