bqEVSW for bq30z55-R3 v0.36

Mohammed Faraj

Prodigy 35 points

Other Parts Discussed in Thread: BQEVSW

Hi, I'm looking for the bqEVSW that supports the custom chip bq30z55R3 v0.36, I'm using the EV2300

please help..

over 5 years ago

0 David Hien over 5 years ago

TI__Genius 10830 points

hi Mohammed,

As you mentioned, bq30z55-R3 is a custom IC so we cannot support your request. Unless you can prove you're working for the OEM or pack maker to whom we're selling this IC.

if you're looking for a catalog multicell gauge, please look at bq40z50-R2.

Regards,

David

0 Mohammed Faraj over 5 years ago in reply to David Hien

Prodigy 35 points

Dear David, Please contact me on private because I didn't figure out how to contact you..

0 David Hien over 5 years ago in reply to Mohammed Faraj

TI__Genius 10830 points

hi Mohammed,
I sent you a request for private message.

0 Mohammed Faraj over 5 years ago in reply to David Hien

Prodigy 35 points

I got the correct bqEVSW but can't figure out how to unseal the bq30z55r3 chip, plz help

0 Igor Elremont over 5 years ago in reply to Mohammed Faraj

Intellectual 845 points

First, you should have valid 128-bit sha-1 unseal key which was used at production stage by pack maker to SEAL the gauge.

If you are sure you have it, then unseal process is pretty simple, just use "SEAL AUTH" page of bqEVSW, where you should enter the key in appropriate 'unseal key' field, and to press the 'unseal' button. It will launch unseal sequence, first reading the random challenge from the gauge then sending sha1-hmac response back to gauge. if it's correct, gauge would be unsealed, and you could observe this by appropriate SEC0,SEC1 flags in OPSTATUS register at SBS page.

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bqEVSW for bq30z55-R3 v0.36