UniKey ARM C IDE
From SecuTech Wiki
UniKey supports all versions of ARM IDE environments.
These libraries can be found in the UniKey SDK located in directory \UniKey_SDK\Libraries\ARM9.C
The latest version of the UniKey SDK can be downloaded from https://www.esecutech.com/downloads/sdk-downloads.html
Please feel free to contact us if you have any questions or encounter any problems at https://www.esecutech.com/support