AnsweredAssumed Answered

No response from ADT7420uCPZ(I2C not working)

Question asked by jois on Jun 3, 2016
Latest reply on Jul 13, 2016 by KarenNE

Hi All,


I am testing the customized board of ADT7420uCPZ(#1440)

No response from the chip. Signal from the controller reaches the chip(I2C clock and data). But no reply.


Any idea how to check the chip.


This is all I tried.

  • In order to ensure that the problem is not from the controller/wire connection, I have test it with PMOD version
  • Checked the leads and voltages while execution. SCL and SDA are at same voltage level.
  • Design follows the pull-up for both SCL and SDA
  • Continuity test of board matches with PMOD


Kindly let me know the suggestion.


Appreciate any assistance.



Santhosh Jois