How to print floating values on KDS3.0 and KSDK1.2

bheemarao — Wed, 06 Oct 2021 20:41:19 GMT

Current Revision posted to Documents by bheemarao on 10/6/2021 8:41:19 PM

Below is the tips for printing the floating values using KDS3.0 and KSDK1.2.0

While I was using FRDM-KL46Z freedom board to interface STBC-AGM01 sensor board i was suppose to print the sensor data (floating values) on UART terminal i tried to add below includes in the linker options

Cross ARM C++ Linker > Miscellaneous" > other linker flag>

"-nanolibc -u _printf_float" which did not worked as expected

so the solution to print floating values in KSDK is in "print_scan.h" file

navigate to project folder > SDK > Utilities > src > print_scan.h as shown below

uncomment the line:

//#define PRINTF_FLOAT_ENABLE 1

to enable the printing of floating point variables.

just to test whether it prints floating value i had added fsl_debug_console component and assigned the TX/RX port pin and added below lines in main.c

then build your project and execute it ypu can see the floating point value printed on hyperterminal as shown below:

Happy Printing float values

Tags: print_float_values, kds3.0