I am quite excited when I see this support package for STM32F4Discovery Board. I want to try it on my board asap. However, I just want to share a couple of links here:

http://www.mathworks.co.uk/matlabcentral/fileexchange/43093-embedded-coder-support-package-for-stmicroelectronics-stm32f4-discovery-board

http://www.mathworks.co.uk/products/connections/product_detail/product_75144.html

http://www.st.com/web/catalog/tools/FM147/CL1794/SC961/SS1533/PF258513