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tdse13

How to set up and use a serial console

Question

I want to use a serial console with a Asutek J3455. I connect a USB to serial converter to the J3455 GND to GND, TX to RX, RX to TX. And I connect the USB port to my MacBook. In a VM I have also access to Windows 10. Serial Port on the the J3455 is enabled in Bios.

 

My queiston: What are the next steps to read the output? I tried with Putty and with the Mac terminal without success. Any idea? Thank you.

Edited by tdse13

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50 минут назад, tdse13 сказал:

I connect a USB to serial converter to the J3455 GND to GND, TX to RX, RX to TX.

It doesn't work, you need an adapter like this.

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The board does not have such a connector, only a serial port header. Do you know of an adapter for a serial port header or do I have to buy plug first?

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Yes, this one I need as well. However, I checked all pins on "your" adapter and my adapter (FTDI Adapter FT232RL - see attached foto) has the same pins. Do I really need all of them? The pins wich are easily available are: RXD, TXD, DTR, GND, CTS. DCD, RTS, and RI need to be soldered. Do  I really need the last 3 Pins? Thank you. 

71iKvZ0wD2L._SL1500_.jpg

Edited by tdse13

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It's UART adapter, you probably don't need it. What mb do you use?

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Asrock J3455-ITX

Edited by tdse13

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Do not use the UART it and the com port have different voltage levels, it may burn out.

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