How to Debug for ROM-5780

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USB2UART Bridge

There are plenty types of usb to uart bridge in the market . Most of them use the following chip :

Debug Port Connection

1. Connect the debug port cable (1701100300) to the debug port (COM3) on
ROM-DB5901.
2. Connect it to your PC using the RS-232 Cable (1700019474).

UART parameter

  • BaudRate:115200
  • DataBits  :8
  • StopBits  :1
  • Parity      :None
  • FlowControl:None or XON/XOFF

1. Connect ROM-5780 with your PC using a serial cable.
2. Open HyperTerminal on your Windows PC, and select the settings demonstrated
in the photo below.

Debug on windows

Install usb2uart adapter's driver. Connect adapter to PC , you will find COM port like :

RK3288 Debian Debug Port Number.png

Putty is very populate tool on Windows. Download putty here.

Run PUTTY.exe, select Connection type of "Serial" , input COM port found in Device Manager.

Set Parameter like :

RTENOTITLE

Then Click "Open" to start debug console.