In an effort to ensure that the wolfSSL lightweight SSL library operates seamlessly with the Keil tools, we have recently added MDK-ARM 4 project files to our package. Additionally, we have added support for Keil RTX. Information on MDK-ARM 4 can be found here: http://www.keil.com/arm/mdk.asp. Information on RTX can be found here: http://www.keil.com/arm/rl-arm/kernel.asp. Support is currently in beta. Let us know if you would like to check it out by contacting us at firstname.lastname@example.org.
We will also be adding support for Keil MDK-ARM 5, when it comes out of beta.