efuse CHIP_PACKAGE different for WROOM-32U

plajjd
Posts: 47
Joined: Thu Jul 05, 2018 11:47 pm

efuse CHIP_PACKAGE different for WROOM-32U

Postby plajjd » Tue Jan 14, 2020 8:20 pm

What is the CHIP_PACKAGE value in eFuse used for?

I have noticed that ESP32-WROOM-32U (with U.FL antenna connector) is value 1.

Whereas ESP32-WROOM-32D (PCB antenna) is value 0.

Is CHIP_PACKAGE an indicator of the package antenna connection?

Thanks!

Phil.

WiFive
Posts: 2946
Joined: Tue Dec 01, 2015 7:35 am

Re: efuse CHIP_PACKAGE different for WROOM-32U

Postby WiFive » Wed Jan 15, 2020 10:30 am

Both D and U should use type 1 which is 5x5mm chip. Older wroom use type 0 which is 6x6mm chip. I don't think it is related to antenna.

plajjd
Posts: 47
Joined: Thu Jul 05, 2018 11:47 pm

Re: efuse CHIP_PACKAGE different for WROOM-32U

Postby plajjd » Wed Jan 15, 2020 4:20 pm

Thanks!

Do you know of any way to determine the antenna configuration (other than external observation and saving something manually in eFuse)?

Phil.

WiFive
Posts: 2946
Joined: Tue Dec 01, 2015 7:35 am

Re: efuse CHIP_PACKAGE different for WROOM-32U

Postby WiFive » Wed Jan 15, 2020 9:35 pm

No, I think you'd have to check the Mac address and be able to match it to a production batch assuming they are sequential.

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