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ADS1256EVM-PDK: EVM setup

David Huang
Intellectual 2285 points
Part Number: ADS1256EVM-PDK

Hi Team,

My customer is using ADS1256EVM, and is having trouble with the setup.

After connect the EVM to MMB0, DRDY output normally as below.

However, after removing the MMB0 and trying to send commands below through SPI, yet DRDY stayed HI having no response.

①AVDD5V input
②DVDD3.3V input
③SDATAC command
④RESET command
⑤SYNC command
⑥WAKEUP command
⑦SELFCAL command

Could you please advise on the likely issue here?

Regards

  • 0
    TI__Guru 52156 points

    Hi David Huang,

    It looks like you have the SYNC/PWDN pin held low. This will eventually put the device in power down mode. Can you try pulling this pin high and see if the behavior changes? You should just be able to move the location of the jumper.

    -Bryan