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BQ4050: Communication related problems

zehu chi
Intellectual 445 points
Part Number: BQ4050

Tool/software:

Dear Ti engineer

I have two communication-related questions, and I hope to get your help

Question 1：Can I change (BLT1)bit5 in SBS Configuration from the default(0x10) to 0x00 or 0x01 or 0x11? How will these three different change affect SBS bus?

Question 2：If the SMBus host continues to fail to communicate with the BQ4050, does the BQ4050 will have action to handle the communication exception, such as re-initializing the SMBus module?

Looking forward to your reply!

  • 0
    TI__Mastermind 24931 points

    Hello, 

    Please refer to the SBS Configuration section in the device TRM to see the bit mapping. 

    Regards, 

    Jonny. 

  • 0 in reply to Jonny
    Intellectual 445 points

    Hi Jonny

    Thanks for you reply! Let me describe it in more detail

    About Question1, I would like to divide it into three condition

    Question1- a:If change (BLT1)bit5 from the default( 2-s SBS bus low timeout) to  No SBS bus low timeout ,How will affect SBS bus?

    Question1- b:If change (BLT1)bit5 from the default( 2-s SBS bus low timeout) to  1-s SBS bus low timeout ,How will affect SBS bus?

    Question1- c:If change (BLT1)bit5 from the default( 2-s SBS bus low timeout) to   3-s SBS bus low timeout ,How will affect SBS bus?

    About the above Question2,Could you please help reply ?

    Looking forward to your reply!

    Best wishes

  • 0 in reply to zehu chi
    TI__Mastermind 24931 points

    Hello, 

    Changing bit 5 will change the bus low timeout. 

    For Question 2, please refer to the following: 

    Regards, 

    Jonny.