dilshan post at 2018-12-17 14:20:44

RK3399 Debug Serial port

Hi, What is the recommended voltage for RK3399 debug serial port? Can I use 3.3V or any 5V USB to UART bridge with this port or do I need to use 1.8V UART bridge with this port?

dilshan post at 2018-12-20 17:56:51

By looking at the schematics and RK3399 datasheet it looks like 3.3V UART bridge is working with this board.

UPDATE: Tested CP2104 UART in 3.3V without any issues.

yaron post at 2019-8-1 17:07:29

dilshan replied at 2018-12-20 12:56
By looking at the schematics and RK3399 datasheet it looks like 3.3V UART bridge is working with thi ...

Can you please elaborate on how did you connect the cables?

igorpec post at 2019-8-1 17:13:20

Make sure you use correct baud rate 1500000
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