allen

What's the best way to read a netduino plus's mac address programmatically? Does the rj45 have to be plugged in to read it?

Trying to open COM1 always throws an error where as COM2 opens just fine. Using the following open commands, why does COM1 throw this big error every time I try to enable it? SerialPortLMU = new SerialPort(SerialPorts.COM1, 115200, Parity.None, 8, StopBits.One); SerialPortLMU.Open(); 01/01/2009 00:23:49 #### Exception System.InvalidOperationException - CLR_E_INVALID_OPERATION (1) #### #### Message: #### Microsoft.SPOT.Hardware.Port::ReservePin [IP: 0000] #### #### System.IO.Ports.SerialPort::HandlePinReservations [IP: 002e] #### #### System.IO.Ports.SerialPort::Open [IP: 001d] #### #### TestApp.Program::SetupSerialPorts [IP: 0033] #### #### TestApp.Program::Main [IP: 0019] #### A first chance exception of type 'System.InvalidOperationException' occurred in Microsoft.SPOT.Hardware.dll #### Exception System.InvalidOperationException - CLR_E_INVALID_OPERATION (1) #### #### Message: #### System.IO.Ports.SerialPort::HandlePinReservations [IP: 0063] #### #### System.IO.Ports.SerialPort::Open [IP: 001d] #### #### TestApp.Program::SetupSerialPorts [IP: 0033] #### #### TestApp.Program::Main [IP: 0019] #### A first chance exception of type 'System.InvalidOperationException' occurred in Microsoft.SPOT.Hardware.SerialPort.dll Doing this same thing with COM2 gives no error or other problem at all. Am I using the right com code? Anyone have any ideas what I might be doing wrong?

Is there any non volatile ram on the netduino plus i could store a unique serial # that I assign to any given board on? I can't store it on the micro sd card for obvious reasons (they can take it out).

I have a device that has a db9 male cable coming from it and I'm told talks SPI. I need to be able to read this over the netduino digital I/O pins. What do I need to do, buy or write to make this happen? $ isn't a problem, I just need this to work. Even if that requires doing something strange like converting to some other protocol using a uart or something? (yes, I'm clueless on this and I deeply apologize). But I really need to figure out a way to get this to work. Any and all suggestions are welcomed.

I'm trying to be able to deploy to the netduino via the MFDeploy. My project deploys and runs fine when I run it from vs.net. However, when I load up mfdeploy and look for a .hex file, none are anywhere to be seen. I realize I'm probably missing something really obvious here, but where is the .hex file created?