BQ27541: HDQ how to write and read?

user4363042

Intellectual 360 points

Part Number: BQ27541
Other Parts Discussed in Thread: BQSTUDIO

Hi all,

How to write and read the registers using HDQ? Any examples are here?

over 8 years ago

0 Onyx Ahiakwo over 8 years ago

TI__Guru* 76230 points

Hi,

We do not recommend programming the gauge in hdq because of the speed, but rather in i2c mode. While in the field communication is via hdq. I do not have sample code, but you can read registers from the gauge using bqstudio and sniff the bus. Also, see below a thrid party hdq sniffer software.

HDQSniffer_1.00_Software (2).zip

Also, see attached app note on hdq basics

3240.hdqbasics.pdf

thanks

Onyx