13 Replies Latest reply on Apr 3, 2012 1:02 AM by pavankumar.vibhute

    Electromagnetic compatibility PSoC5- Cortex ARM-M3

    pop.adrian

      Hello. 

         

      I made a pcb with PSoC5 (CY8C5566AXI-061)and wrote a simple program that increments a variable every second, and displays it on LCD. 

         

      I programmed the PSoC, the program works fine.

         

      But when i place an old soldering gun (like this http://goo.gl/6ujlt) near the microcontroller, and i repeatedly press and release the soldering gun's button, the counter displayed on lcd resets (so, i guess the microcontroller resets) or sometimes increments with 10, or changes the text position.

         

      The soldering gun was placed near the microcontroller at about 1-2cm. 

         

      I wonder if there will be any problems with this mcu being used in a industrial environement.

         

      Is there someone who used it in such environement?

         

      I tried shielding the mcu with a thin metal foil soldered to ground but nothing changed.

         

      What can be done to improve mcu's imunity to EMI?

         

      P.S. I didn't knew where to post this question in the forum, sorry if this is not the right place.