• Author Author: neerajrd82
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Random Reset of Arduino due board Rev 3

neerajrd82

Dear Community members,

I m working on Arduino due board Rev 3 version. I have observed that this board gets reset in Random fashion . I unable to find out the reason. If Somebody who has worked more extensively  than me on this board,might help me. 

I have chosen just one I/O pin to check to blink led connected with 1k resistor in series on PIN NO 40 . i have written small program in Segger Embedded Studio to blink LED. LED was blinking correctly but I have noticed small blip on LED marked 'L' meaning it glow randomly for very small period of time when MCU ATSAM3X8E receives reset . Also when i press reset button on Arduino due, "L" led glows.

Please! help me to debug this random reset issue. I don't have oscilloscope to debug since they are expensive.

i m sure that somebody might have encountered this issue before & also resolved the same.

PLEASE! HELP ME URGENTLY SINCE THIS ISSUE WILL INTRODUCING MORE DELAYS IN MY DESIGN.

       

  • in reply to neerajrd82

    Is there something else connected to the power supply the takes in-rush current during reset? Even a big capacitor?

  • in reply to dougw

    I have referred this schematics before connection.  

    image

    Hi dowgu & other community members,

    I have done the connections as shown in above figure & loaded the program successfully using Segger Embedded Studio. Externally connected LED is blinking correctly. But suddenly, i  have seen 'L' LED shown above blink  for very short period in random fashion & thereafter target chip begins to blink the externally connected LED in correct fashion. I sincerely suspect the some portion of power supply connected on board is misbehaving due to which this is happening. Sorry, i do not have oscilloscope to check this. Please! help me as urgently as possible. 

  • When an MCU gets reset, typically all I/O pins become inputs until the program starts, when the program may set them to be outputs. if your circuit allows current to flow through the LED when the MCU pin is an input, you could see it glow during the boot time. Can you post the schematic of your LED circuit?