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DAC7573: I2C recovery

shinichi yumoto
Prodigy 30 points
Part Number: DAC7573

Tool/software:

I would like to ask how to recover if the DAC7573 leaves the SDA line at L.

My hardware does not allow a power on reset by turning VDD off and on.

Is there another way to recover it by sending 9 clocks to the SCL line?

  • +1
    TI__Mastermind 34328 points

    Hi Yumoto-san,

    The only way to fully ensure a reset to the I2C block would be to toggle VDD on and off. Most cases of the SDA line being stuck would likely be resolved by toggling the SCL line until the device releases the SDA line (should usually be 9 + 1 pulses). 

    Best,

    Katlynne Jones