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Portisch edited this page Nov 6, 2018 · 1 revision

0xFF

Request the firmware version of the EFM8BB1 firmware.

Direction: host -> EFM8BB1

Hex: AA FF 55

Data Description
0xAA uart sync init
0xFF uart command
0x55 uart sync end

Example of a received firmware version:

Direction: EFM8BB1 -> host

Hex: AA 01 55

Data Description
0xAA uart sync init
0x01 firmware version
0x55 uart sync end
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