Using 0x55 to synchronize baud rate is fairly common. E.g. by coincidence just y... | Hacker News

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a2800276 on March 19, 2022 | parent | context | favorite | on: Documenting Sony Memory Stick

Using 0x55 to synchronize baud rate is fairly common. E.g. by coincidence just yesterday I was working with the ESP bootloader. The initialization sequence contains a SYNCH command with a bunch of 0x55s the processor uses to determine the baud rate.

There should be a "Glossary of Common Byte Patterns" :)

_Microft on March 19, 2022 [–]

I just remembered that I saw a list of magic numbers on rachelbythebay.com once and submitted it at https://news.ycombinator.com/item?id=30733067

Maybe you like that. 0x55 and 0xAA are also in there.

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