Jef,
Ok. What IDE do you use? Since you are using the v4 you should be using the STM43F4Discovery as a brain correct? I have both a STM32F4Disco and a STM32F429iDisco. Unfortunately the pinout of the 429 is different because it has has a nice LCD touch screen.
I use the Mac version of the tasking IDE (http://www.tasking.com/products/arm/) for a lot of my ham radio projects. I shuld be able to just use the brain for dev till I can afford the 9090 and mb909. My logic analyzer is only 8 lines. I need to get a 32 line analyzer at some point.