the SCILAB / X2C solution works with any hardware, as you are responsible on your own for the framework project that includes the peripheral drivers.
Right now there are demos available for the following demoboards:
X2C Developement Board by Chipcad
dsPIC33EP256MC502 70MHz
256kB Flash
32kB RAM
16bit DSP
or
PIC32MX170F256B 50MHz
256kB Flash
64kB RAM
32bit
onboard features:
PIC32MZ2048EFH064 by Olimex
200MHz
2MB Flash
512kB RAM
double precision floating point and DSP
onboard features: