Compiler/CC2640R2F: unresolved symbol

Hynag Chung

Part Number: CC2640R2F
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI C/C++ Compiler

Hi, I tried to use usleep in main_rtos,c flie but got an error that unresolved symbol.

But the example driver project which provided by TI use usleep function and I followed it.

I used usleep in main_rtos.c file so I thought this might be a problem so I edited exactly same like make thread and used usleep in thread.

But I got more errors. My guess is I developing based on example rtos project which is mutex and I followed example driver driver.

this might cause the error? How to solve this?

over 8 years ago

0 IUsedToBeARealPerson (M-W) over 8 years ago

TI__Guru 58425 points

Hi Hynag,

Are you basing your project on any of our example projects? To use POSIX (besides including the correct headers) you will also need to add some lines to the TI-RTOS configuration if the project was not previously POSIX enabled:

(from POSIX enabled .cfg file)

/* ================ POSIX configuration ================ */
var Settings = xdc.useModule('ti.posix.tirtos.Settings');

if (Program.build.target.$name.match(/iar/)) {
/*
* For the IAR target, the 'ti.posix.tirtos.Settings' uses the
* MultithreadSupport module. By default, the MultithreadSupport module
* use the '--threaded_lib' library which provides a separate 'errno'
* per thread and makes other rts libraries reentrant. This library has
* a larger footprint which can be a problem for some apps, so we
* override the default and disable it here.
*/
var MultithreadSupport =
xdc.useModule('ti.sysbios.rts.iar.MultithreadSupport');
MultithreadSupport.enableMultithreadSupport = false;
}