• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 294 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADC3222: ADC3222 Basic Test Pattern Generation Procedure

Kazuki Itoh
Genius 10425 points
Part Number: ADC3222

Hi,

My customer got stuck making test pattern. Could you please tell me the basic procedure? He uses single-wire, and dither is off. He says he observes 100000000000 after setting register 0Ah to 01h. Do you come up with potential cause? He has already checked register 06h.

Best regards,

Itoh

  • 0
    TI__Genius 12780 points

    Hi Itoh,

    Here is the procedure I have followed on the evaluation module to enable the all zeros test pattern on CHA. This can be repeated for different channels with their respective register writes found in the register map section of the data sheet.

     0x06 0x02 #Enable Test Patterns

    0x0A 0x10 #Enable All Zeros on CHA

    If the customer is still seeing a 1 at the MSB position, this is probably due to the data format being used (2's Complement).

    To change to offset binary, write the following address and data value

    0x09 0x01 #Data format change to Offset Binary

    Best Regards,

    Dan