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BQ4050: Communication related problems

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!

  • Hello, 

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

    Regards, 

    Jonny. 

  • 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

  • Hello, 

    Changing bit 5 will change the bus low timeout. 

    For Question 2, please refer to the following: 

    Regards, 

    Jonny.