Hi, There is a pending PR that aim to improve our support for simulated environment. It main goal is to remove explicit call to mcu_sim_parse_args() which resulted in recursive call to main() function.
Mentioned PRs are: https://github.com/apache/mynewt-core/pull/3024 https://github.com/apache/mynewt-blinky/pull/19 Note that not updating your application to mynewt_main() shouldn't cause any issues but we recommend to move to mynewt_main() after mentioned PRs are merged. -- pozdrawiam Szymon K. Janc