• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 439 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ78350: BQSTUDIO connecting issue

Cherry Zhou
Mastermind 22235 points
Part Number: BQ78350
Other Parts Discussed in Thread: BQSTUDIO

Hi team,

Here's 3 questions may need your help:

1. some boards connect to BQ78350 with BQSTUDIO, connect with smbus without any reaction, some boards can connect to BQstudio properly, and also burn the firmware of the official website. Bq78350_R1_v1_04_build_26.srec, also properly configured with 4 cells, FET _EN enabled, and voltage output available. After a few days connecting to bqstudio again, smbus mode cannot be connected, why is that?

Is the Please select a target in the Target Selection Wizard in the bqstudio software startup selection related to the version number of the wrong chip selected in this option? (Such as 1E9B_1_03-bq78350_R1.bqz, 1E9B_1_04-bq78350_R1.bqz, 1E9B_2_02-bq78350R2.bqz inside), If this wrong selection will cause the disconnection,  then how to reconnect to the bqstudio properly and re-burn the firmware again?

2. Is the change from BQ78350DBTR-R1 to BQ78350DBTR-R1A having an impact on the bqstudio connection?

Also, select the model when bqstudio starts, which one should be chosen? (Such as 1E9B_1_03-bq78350_R1.bqz, 1E9B_1_04-bq78350_R1.bqz, 1E9B_2_02-bq78350R2.bqz)

3. The sumbus address of the BQSTUDIO connection BQ78350 is shown as 0x17, and the address in spec is 0x16 or 0x17. Cannot connect to bqstudio properly, what should they do to configure? 

Could you help check this case? Thanks.

Best Regards,

Cherry

  • 0
    TI__Guru 57697 points

    Hello Cherry,

    The bq78350 enters sleep mode automatically if there is no current and after timeout. It will need to be woken up by applying charge or discharge current. Then bqStudio will be able to autodetect.

    The address is 0x16. LS Bit is used for read/write on the bus (and unused from bqStudio perspective). bqStudio uses it to indicate if PEC is enabled. 0x17 means PEC is enabled at address 0x16