Currently the Bluetooth SDK supports the IAR 7.80.2 and the GNU ARM v4.9.3. toolchains
The IAR installer can be downloaded from here:
The GNU ARM toolchain can be installed within Simplicity Studio package manager.
i want to known The IAR 7.80.2 toolchain whether to be installed within Simplicity Studio package manager. tell me please , thank you
As this article explains you need to install IAR separately.