LAUNCHXL-CC1310: sleep() and usleep() support in TI Stack sensor example

shilpa B S

Part Number: LAUNCHXL-CC1310
Other Parts Discussed in Thread: SYSBIOS

Hi TI,

We wanted to add sleep() and usleep() in sensor example of TI 15.4 stack,.

Added sleep() in sensor.c and included header file #include <unistd.h> and included ${COM_TI_SIMPLELINK_CC13X0_SDK_INSTALL_DIR}/kernel/nortos/posix in ARM Compiler include Options but facing an below error

undefined first referenced
symbol in file
--------- ----------------
sleep <whole-program>
usleep <whole-program>

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "sensor_cc1310lp.out" not built

Thanks&Regards,

shilpa

over 7 years ago

0 YiKai Chen over 7 years ago

Guru 735695 points

Which SDK version do you use?

0 shilpa B S over 7 years ago in reply to YiKai Chen

Expert 1010 points

simplelink_cc13x0_sdk_2_20_00_38

0 YiKai Chen over 7 years ago in reply to shilpa B S

Guru 735695 points

I use latest SDK 2.40.00.20 and add "#include <ti/sysbios/knl/Task.h>" in sensor.c. Then, I can call sleep()/usleep() in Sensor_init without problem.

0 shilpa B S over 7 years ago in reply to YiKai Chen

Expert 1010 points

We wanted to add in existing sdk which is v2_20_00_38, can you pl provide solution with this

0 YiKai Chen over 7 years ago in reply to shilpa B S

Guru 735695 points

Sorry, I seems give wrong answer in my previouis reply. sleep and usleep seems not supported in SDK 2.40.00.20 too. Hector_r Do you have idea how you use sleep and usleep in CC13x0 SDK?

0 shilpa B S over 7 years ago in reply to YiKai Chen

Expert 1010 points

With nortos ti driver examples I was able to use it but when i added that in TI stack rtos sensor example it is showing earlier error
With TI driver example applications, we just need to add unistd.h header file and call that sleep() in your code and add ${COM_TI_SIMPLELINK_CC13X0_SDK_INSTALL_DIR}/kernel/nortos/posix in properties ARM compiler option but the same is not working with Stack sensor example

0 Hector_r over 7 years ago in reply to shilpa B S

TI__Genius 12415 points

if you want to enable posix APIs in a TI-RTOS project you need to uncomment the following line of code

//var Settings = xdc.useModule('ti.sysbios.posix.Settings');

In your sensor project under Tools/app.cfg

Sub-1 GHz

Sub-1 GHz forum

LAUNCHXL-CC1310: sleep() and usleep() support in TI Stack sensor example