This ACK seems to require 100us to respond. Is this normal? What may be the problem and how can it be resolved?
Also, the command format for iic communication is a bit difficult to understand. Do you have any reference materials to share? I really need them. Thank you!
Hi,
We recommend a 100ms delay in between sending and receiving commands.
The datasheet has info on timing.
bq27220 Single-Cell CEDV Fuel Gauge datasheet (Rev. A) (ti.com)
I2c info 5.1 - BQ27220 Technical Reference Manual (Rev. A) (ti.com)
This document has information on gauge communication - ti.com/lit/an/slua801/slua801.pdf
Regards,
Evan
The IIC communication format of BQ27220 is shown in the screenshot . If we want to realize the example , do we need to send AA 00 01 00 to BQ27220 using the incremental write command, and then send the incremental read command AA 3E AB.. to read the response data of BQ27220? Could you please explain in detail how to deal with this situation?
