Dear TI Experts
I am now using BQ40Z50-Q1, and need to use SHA-1 Authentication
Can you tell me how to use the SHA-1? Can you share me some operation procedure?
i am new bird here,really need your help
Thank you very much~
Hi Qianqian,
I had captured the waveform using logic analyzer. There are 3 step you need to implement in your system.
1.The host should send challenge first using command 0x2F with smbus blockwrite protocol.
2.Wait the bq40z50 to computed sha-1, I don't know how much delay time should be used, I had captured the waveform as picture 3 the bqStudio was delay 68ms.
3.Read back the responder digest from gauge, using 0x2f command with smbus block read protocol.
