To use stmdsp, you'll need a NUCLEO development board and the custom DSP add-on board.
NUCLEO-L476RG development board
NUCLEO is a line of development boards from STMicroelectronics. These are similar in concept to Arduino, but have more versatile processors in exchange for a higher learning curve.
Currently, only the NUCLEO-L476RG model is supported. Support for other models may be added in the future.
This board can be ordered from various distributors, including Digikey and Mouser.
The NUCLEO-L476RG hosts the STM32L476RG microcontroller. See here if you would like to read more about the microcontroller.
DSP add-on board
This is a custom add-on board that provides multiple essential features, including signal interfaces, the USB communication port, and a status LED.
See the next wiki page, Add-on board details, for more information.