rgavrilov

I can't find the answer to this question. I apologize if I this is a dup.

I need to uniquely identify a device, as is often the case.

STM32 has a "Device Electronic Signature" feature. Is there a way to read that value?

I know I could store a value on the SD card or EEPROM. But it is important that the value would be protected from being changed (or copied) by a user.

I could you MAC address (as was suggested somewhere else), but I have seen a thread here on netduino.com about MAC changing. Which is unacceptable.

--roman

Is there a way to count number of pulses using a timer? Preferably using a strobe. I want to count number of pulses over a period of time, and get an interrupt at the end.

Is there an API for that?

I need to capture a sine waveform (to determine an amplitude).

Is there an API to configure ADC with DMA to capture, let's say 20ms of waveform with 1ms samples?

Hello,

I need to measure an amplitude of a 60Hz sine wave (output from a Hall-effect sensor) using ADC on N+2. I am looking for elegant ways to accomplish this. What are my options?

Option 1: Is there a way to configure ADC to collect multiple samples with specified frequency?

Option 2: Can I use hardware-timer interrupt to take a sample every 4ms? Is timer implementation reliable (in terms of interrupt triggering accuracy) to rely on it for timing?

Option 3: Collect 100 samples over period of time and use histogram to reconstruct the sine wave.

Option #1 seem to be the best, but I don't know if Netduino NETMF supports that mode.

Any other ideas?