If you want to use Uart, I think you sould compile netduino source for receiving and sending data very quickly. The inner part of source, the buffer size of UART's RX/TX is set as just 256 bytes. I modified the info. for increasing buffer size, so it can include more data than before.
I also leading project related with fast sampling device based on NP2. I faced many problems in performance. .NET MF is not that fast as you want to do.
- Howie Goodell likes this