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DS90UB928QEVM: Customers want register table for DS90UB928Q EVM to communicate with DS90UB927Q EVM

Jason Cao
Prodigy 140 points
Part Number: DS90UB928QEVM


Since the EVM cannot be applied for, the contents of the register cannot be read through ALP. 
So customers want to know which registers need to be configured for communication between DS90UB928Q and DS90UB927Q？

  • 0
    TI__Mastermind 30180 points

    Hey Jason,

    If you want to enable remote I2C communication between 927 and 928 you need to enable I2C Pass through. 

    From 928 side the default value of register 0x03 = 0xF0 you need to change this to 0xF8 to enable pass through. 

    From 927 side the default value of register 0x3 = 0xD2 you need to change this to 0xDA to enable pass through. 

    Regards,
    Fadi A.

  • 0 in reply to Fadi Abdulhameed
    TI__Prodigy 140 points

    Hi Fadi,

    My customer want the Altium Designer file of DS90UB928QEVM.

    Could you please send it to my Email？

  • 0 in reply to Fadi Abdulhameed
    TI__Prodigy 140 points

    Hi Fadi,

    My customer wants the complete register configuration table of the two chips when the 927 and 928 communicate, 
    which means he wants a table that has been configured to be copied directly into his code.
    Will we provide that kind of table?
    Thanks!
  • 0 in reply to Jason Cao
    TI__Mastermind 30180 points

    Hey Jason,

    Jason Cao said:

    My customer want the Altium Designer file of DS90UB928QEVM.

    Could you please send it to my Email？

    I can send it over a private message on here.

    Jason Cao said:
    My customer wants the complete register configuration table of the two chips when the 927 and 928 communicate,
    which means he wants a table that has been configured to be copied directly into his code.

    I don't understand your question? Register tables are provided in the datasheet of each device. For 928 please refer to (Table 8. Serial Control Bus Registers)

    As far as configuration, you don't need to change anything, those parts are plug and play unless you need to enable additional features, etc. you can modify the restier values to enable certain features also can refer to Mode_sel section (8.4.4 Mode Select (MODE_SEL)) for changing the straps of the device. 

    Regards,
    Fadi A.