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PGA900: Source code for OWI interface

Takeshi Sasaki
Expert 4480 points
Part Number: PGA900
Other Parts Discussed in Thread: PGA300

Hi team,

Could TI provide source code only for OWI interface of PGA300 and PGA900? The customer found there was difference on activation process between PGA300 and PGA900, so they want to confirm appropriate procedure to active each PGA300 and PGA900 at OWI interface. 

Best regards,

Takeshi Sasaki

  • 0
    TI__Mastermind 31655 points

    Hello Takeshi,

    Is the customer looking for code for the master MCU that will be outputting OWI signals to the PGA900 and PGA300? There isn't currently any reference code available for this. I imagine that the customer has noticed the difference in activation schemes between the PGA300 and PGA900 by watching the activation sequence through a scope probe from the EVM. This is a fine way to see an example of the types of signals needed, but the full activation sequence details are included in the datasheet for more specific information.

    The OWI thresholds and timing are included in the "Electrical Characteristics – One-Wire Interface" section, and the activation sequence is included in the "Activating OWI Communication" section.

    Regards,