James Coleman

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8 years, 6 months ago.

mDot "Hello World" program does not work on my mDot

I flash the mDot example program "Hello World" on my mDot which is connected to a UDK2 micro development platform but nothing happens. Any idea why this program does not work on my mDot?

Thanks,

James

Question relating to:

Last updated: 07 Jul 2015
An example program for the mDot that blinks LED1 and prints a message to the debug port.

2 Answers

Mike Fiore
8 years, 6 months ago.

Hi James, Take a look at lines 9 - 16:

// Uncomment this line if using a full sized UDK2.0 instead of a Micro UDK
// #define UDK2 1
 
#ifdef UDK2
DigitalOut led(LED1);
#else
DigitalOut led(XBEE_RSSI);
#endif

If you're using the full size UDK, you'll need to uncomment the second line in the snippet so the program toggles the proper pin.

Cheers, Mike

Accepted Answer

Mike,

Thanks for the help. Did not realize that I had the full sized UDK2.0. Making this change fixed the issue.

posted by James Coleman 05 Oct 2015
Andrew Lindsay
8 years, 6 months ago.

What do you mean by "does not work" ? does it not flash the LEDs as expected? Did it flash the mDot correctly? Is there a file in the mDot drive called fail.txt? Was the file sent to the mDot correctly with no warnings in your browser?

I have seen that I sometimes need to try it twice before it will correctly flash the image.

thanks

Andrew

Sorry for not providing additional information. The program does flash and print "Hello World" to my terminal. The LED does not flash as expected. Is there something that I need to do to get the LED to flash?

Thanks,

James

posted by James Coleman 05 Oct 2015