Actual UART support and performance on Banana Pi BPI-R4

Banana Pi Router design BPI-R4/BPI-R4 Pro(MT7988)
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Hello, all,

I am trying to confirm the actual status of UART support on the Banana Pi BPI-R4.

Does the hardware UART work reliably and appear as a character device (e.g., /dev/uart*) under Armbian Linux?

Also, what is the maximum baud rate supported by this port?

– SY, Serge

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The UART is about the first of the components of the board that gets support…

The armbian image is not an officiallly supported image I think.

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I found information about the MT7988 online. It states that the Baud rate is programmable from 300 bps to 3 Mbps.

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