undefined reference to `nrf_libuarte_async_tx'

RE: undefined reference to `nrf_libuarte_async_tx'

Mecadev — Thu, 08 Oct 2020 07:14:35 GMT

Yes, that's because you're compiling with C (I'm compiling for C++ arm-none-eabi), with c++ there are some mods that has to be done, like adding extern C (and macros c++ compatibility) , sdk 16.0 on that specific library doesn't have them.

RE: undefined reference to `nrf_libuarte_async_tx'

Amanda Hsieh — Thu, 08 Oct 2020 07:09:21 GMT

Hi,

Good to know you figure out the issue. However, the SDK 16 LIBUARTE example has already done what you did, and I don't see any error while compiling the unmodified example.

-Amanda H.

RE: undefined reference to `nrf_libuarte_async_tx'

Mecadev — Thu, 08 Oct 2020 05:00:03 GMT

Ok I've figure it out, I though the libuarte library header file had the extern "C" brackets like all the sdk libraries, seems like they forgot to add it, hope they add it in newer SDK releases!.