UART CONSOLE NOT WORKING

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sonalkalexeb
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UART CONSOLE NOT WORKING

Unread post by sonalkalexeb » Thu Aug 23, 2018 4:02 pm

Hello
I am using odroid c2 with SD card..
My device works fine with current image in card.
I can access board using UART CONSOLE....
But suddenly I cant access odroid using minicom.
I have check all possibilities such as USB to serial cable connections,changed SD card etc but cant get odroid console.
looking for response.
Thank you.

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odroid
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Re: UART CONSOLE NOT WORKING

Unread post by odroid » Thu Aug 23, 2018 4:35 pm

Is the blue LED blinking on the C2?
Which OS image did you use?
How is the LED status of the USB-UART board when you type keyboards on the minicom?

sonalkalexeb
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Re: UART CONSOLE NOT WORKING

Unread post by sonalkalexeb » Thu Aug 23, 2018 5:57 pm

odroid wrote:Is the blue LED blinking on the C2?
Which OS image did you use?
How is the LED status of the USB-UART board when you type keyboards on the minicom?
Yes blue LED blinks properly on C2 .
when I type on the minicom status of LED remain same.

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Re: UART CONSOLE NOT WORKING

Unread post by odroid » Thu Aug 23, 2018 6:12 pm

If you use Windows host PC, check COM port first.
If you use Linux host PC, check /dev/ttyUSB* device node.

sonalkalexeb
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Re: UART CONSOLE NOT WORKING

Unread post by sonalkalexeb » Thu Aug 23, 2018 8:36 pm

odroid wrote:If you use Windows host PC, check COM port first.
If you use Linux host PC, check /dev/ttyUSB* device node.
I am using Linux host PC, and it show ttyUSB0 port.

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Re: UART CONSOLE NOT WORKING

Unread post by odroid » Fri Aug 24, 2018 9:14 am

There should be no flowcontrol option in the minicom settings.

BTW, do you use Ubuntu 18.04 Mate image on C2?

sonalkalexeb
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Re: UART CONSOLE NOT WORKING

Unread post by sonalkalexeb » Thu Aug 30, 2018 3:17 pm

Hi sorry for late reply..
Both hardware and software flow controls are disabled in minicom.
I am using custome linux system for odroid C2 created using yocto.
Same image work fine on other board.

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Re: UART CONSOLE NOT WORKING

Unread post by tobetter » Thu Aug 30, 2018 3:30 pm

sonalkalexeb wrote:Hi sorry for late reply..
Both hardware and software flow controls are disabled in minicom.
I am using custome linux system for odroid C2 created using yocto.
Same image work fine on other board.
Does the UART-serial board work on other boards? If it's not working or LED is not blinking when you type a key on Minicom regardless of how it is set, maybe UART-serial board has defected. Also, you can check if LED blink closed to the micro USB port when ODROID-C2 is booted up.

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Re: UART CONSOLE NOT WORKING

Unread post by sonalkalexeb » Thu Aug 30, 2018 5:41 pm

yes UART-serial board works on other boards..LED closed to the micro USB port blink when board boot up.

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