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flipperdevices / flipperzero-firmware

Flipper Zero firmware source code
https://flipperzero.one
GNU General Public License v3.0
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Device ID / Bluetooth MAC different on newer flipper #2655

Closed KJee85 closed 1 year ago

KJee85 commented 1 year ago

Describe the bug.

In https://github.com/flipperdevices/flipperzero-firmware/blob/dev/firmware/targets/f7/furi_hal/furi_hal_version.c#LL110C49-L110C49 the BT MAC address is built from the device id from the stm32wb55 which says this should always be 0x26

On my flipper, my Bluetooth MAC is 0x27 for that part. Is this expected? I can't seem to find any docs for STM on why or what revision of the chip returns 0x27.

Reproduction

  1. Connect Flipper to BT, note MAC address like 80:E1:27...

Target

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Logs

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Anything else?

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hedger commented 1 year ago

So, how is this a bug? What does it affect?

KJee85 commented 1 year ago

I'm looking at building some custom GPIO modules for my Flipper, and noticed the difference. and wanted to understand why so I can account for any differences in the chip.

hedger commented 1 year ago

Those are different MCU revisions.