Part Number: BQ78350 Other Parts Discussed in Thread: , BQ40Z50 , BQ26100 , Tool/software: Code Composer Studio HI,
I am struggling with the SHA-1 authentication done by the bq78350.
I wanted to know how bq78350 is communicating with the device to authenticate…
Hi Andy,
That E2E thread refers to example MSP430 SHA-1 files that aren't posted in that thread, and that are for the BQ26100. Do we have any resources with example code for the BQ40Z50 specifically?
I did find a separate E2E thread that seems to…
Part Number: BQ26100EVM Other Parts Discussed in Thread: BQ26100 Tool/software: Code Composer Studio Hi,
I have the EV2300 and the BQ26100EVM.and then I have seen the document of "slva413a".
But I can't find these documents these are …
Part Number: BQ34Z100-G1 Other Parts Discussed in Thread: BQ26100 , , BQ34Z100 , BQSTUDIO Hi
I've implemented the SHA-1/HMAC authentication scheme as described in SLUA389A (for the bq26100) , and my code produces the correct digest for the test key and message…
Hi Prakash,
Yes, you can use Battery Management Studio to check SHA-1 and to read the written authentication key.
Please refer to this app note "How to Implement SHA-1/HMAC Authentication for bq26100"
The device is different, but there is useful…
Other Parts Discussed in Thread: BQ76920 , BQ77PL900 , BQ76925 , BQ76930 , BQ76940 , BQ76PL536-Q1 , BQ76PL536A-Q1 , BQ77910A , BQ77908A , BQ26100 Hi folks,
We're pleased to announce that starting today, we've created a new forum within Battery Management devoted…
Other Parts Discussed in Thread: BQ26100 , MSP430G2553 , MSP430F2370 Hi Team,
I'm trying to get "MSP430_bq26100" from the following zip file to work on a MSP430G2553 because that is the only board I have available. I am using CCSv4 because CCSv6 didn't…
All of the SHA-1/HMAC calculations for the gauges (bq27541 / bq20z45) and bq26100 are identical. You can use the bq26100 reference and also see some sample MSP430 code in SLVA413.
Rick,
You CAN program the bq26100 and bq27541 with the same SHA-1 key, but you are correct that you cannot choose the key arbitrarily.
First you must program the bq26100 key with the bq26100 EVSW by using a random or user-chosen message. When you program…
Bob, it's likely our SHA-1/HMAC does some zero padding differently than what you got from rfc3174.
Try the sample MSP430 C code in the zip file included with SLVA413A which shows how to calculate the SHA-1/HMAC for the bq27541-V200 or bq26100. It…
