I have a Netduino mini, and everything was working fine. I decided to update to 4.2
I followed the instructions here:
Everything was fine until I erased it. I applied 5V to erase pad, turned it off, then turned it back on (5V regulated to pin 21).
I have an FTDI Basic breakout board at 5V:
CTS => GND
GND => GND
RX => Pin1
TX => Pin2
SAM-BA tells me "Connection Fatal / Communication Error".
I've switched the TX/RX wires (pins 1 and 2), supplied 9V to pin24 instead of 5V to pin21. still no luck. i measure 5V on pin 21 when supplying 9V to 24. I've tried pin 23 and 4 for the ground wire of the FTDI. I measure 5V on the FTDI also.
I can see the Tx LED flash on the FTDI when SAM-BA is trying to connect. About 1 Hz. Then it times out.
I've tried using SAM-BA v2.8.
I've tried different jumper wires and a different breadboard. But I get no response from the mini.
I've tried erasing again with 5V multiple times.
Anyone have any ideas? By trade, I'm a .NET developer and like the idea of sicking with that language, and would rather not go back to arduino if i can avoid it. but for $30, i have not even gotten a blinking LED sample running on this mini.