2 replies to this topic

[Baqs]

When attempting to use pointers in a Netduino Plus I have locked the device in every attempt. For example, if I try to run the following code:

public static void Main()
{
   float testNumber = 5.25f;

   byte[] numberBytes = GetBytes(testNumber);
   for (int count = 0; count < numberBytes.Length; count++)
   {
      Debug.Print("Byte[" + count + "]=" + numberBytes[count]);
   }
}

public static unsafe byte[] GetBytes(float value)
{
   byte* pointerToFirstByte = (byte*)&value;
   byte[] resultBytes = new byte[4] { *pointerToFirstByte, *(pointerToFirstByte + 1), *(pointerToFirstByte + 2), *(pointerToFirstByte + 3) };
   return resultBytes;
}

the Netduino ends up locked and I have to erase it with MFDeploy. Is there any way to use pointers in the Netduino Plus?

[Chris Walker]

Hi Baqs, Unsafe code is not officially supported by .NET Micro Framework. We have used it ourselves on occasion, with the understanding that it was a curious side-effect more than an on-purpose feature. Grab a copy of the BitConverter in the GoBus source. It has a GetBytes function for floating point values. Please try it on your Netduino Plus and let me know if it works or not. Chris

[Baqs]

Thanks Chris, worked perfectly!