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Kinetis MKL24 randomly not starting when powered on

Question asked by Szymon Mroczek on Oct 29, 2013
Latest reply on Nov 10, 2013 by Szymon Mroczek

Hi All,

I have a problem with Kinetis MKL24 based device.

It is powered with a single cell 3.0 V battery.

My software project is build with Processor Expert drivers, including MQX Lite OS driver.

I have a very simple single task that loops every 1 second and blinks some LED.

 

For some reason around 50% of cases when I insert battery into a socket my device does not start (no LED blinking).

I found that if I short-circuit GND with RESET pins on PCB's programming socket for a moment it starts do blink.

It also starts every time when started from under debugger.

 

Do you have any ideas what's the problem?

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