• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 136 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.

Original question:

BQ40Z80: communicate with ManufacturerAccess

BQ40Z80: why when i use bq40z80 first,i only can oper 0x16 command ,but cant oper

min.cheng
Prodigy 50 points
Part Number: BQ40Z80
Other Parts Discussed in Thread: BQSTUDIO,

Why can I directly operate the 0X16 command when I first activate the battery pack, but 0x44 ManufacturerBlockAccess () cannot operate normally and the SCL signal cannot be raised. When I connect using BQSTUDIO, the 0x44 ManufacturerBlockAccess command can operate normally and the SCL signal can be raised。

When i connect bq40z80 first, the waveform diagram is as follows:

0x44 ManufacturerBlockAccess ()  

  • 0
    TI__Guru** 105590 points

    Hello,

    It seems like there may be an issue with your host driver if BQStudio is working but the host cannot communicate properly. You can use the BQStudio transactions as an example to structure your own commands.

    Sincerely,

    Wyatt Keller