Hi Atilla,
You can download the Beestack 5.0.0 following the next link
Search Results: beestack 5
The examples that we provide are in FreeRTOS or MQX. The bare metal code is not available.
You can find Zigbee examples C:\Freescale\Kinetis_BeeStack_5.0.0\examples and also the driver examples that you are looking for.
Thanks in advance.
Best Regards,
Mario