If you have an nRF52 device, select the latest version. For nRF51 devices, select the
latest version with support for nRF51 (currently, v12.3.0). For information about which
SDK supports which IC revisions, check the compatibility
matrices.
Extract the zip file to the directory that you want to use to work with the SDK.
This folder will be referred to as SDK_dir in the following
documentation.
Note: Compilers tend to run into problems with long path names. Therefore,
place the folder as close to the root level of your file system as possible (for
example, at C:/Nordic/SDK). Also, avoid using spaces in the file
path and folder name.