1 reply to this topic

[loulblades]

To all,

 

I am somewhat new to the Netduino world but not to DAQ.

 

I am interested in developing a net server (via wifi) to do relatively precision ADC samples by using one of the processor's timers to set the sample rate.

 

I would like to take a burst sample at ~4K/s rate of (currently) undetermined number of samples and DMA (possibly) it to the SD card (probably in files named by the start sample time).  The client would come in at some interval and download the data if any were available.

 

I have looked through many of the projects and figure I have the server worked out (more or less) but it looks like I need to get at the ST processor and wondered if there any drivers available that allow me to get at the processor internals (in a somewhat easy fashion), since I do not see anything in the SDK to do this..

 

There is no doubt in my mind I will have more questions.

 

TIA

Lou

[Chris Walker]

Hi Lou,

Generally speaking, NETMF abstracts away the MCU registers--instead giving you a unified IO object model that works across lots of different families of microcontrollers.

You can certainly add in some native code functionality in the NETMF source itself (with interop classes, HAL, etc.) but this isn't something you can do today (ADC sampling with DMA, etc.) from managed code.

As Llilum progresses, we may be able to support some scenarios along these lines from C#...but that project is a proof of concept at this point.

Chris