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HDC1010: I cant read the HDC1010

ARUN MOHAN
Prodigy 10 points
Part Number: HDC1010

Dear all,

I cant read the data from HDC1010. I have attached the Schematic and board layout. kindly give me the solution.Initially 1.5K pull up connected to the scl and sda this time not working. Then Pullup changed to 10k this time also not working.

Schematic

Top  side

Bottom side

  • 0
    TI__Guru* 91206 points

    Dear Arun - 

    You should add pullup resistors on I2C lines to your schematic. I also am not 100% sure from your images that the via to the address lines is connected to GND. If that is OK, then recommended next step is to get logic analyzer or o'scope to see what your firmware is doing, to troubleshoot your issue.