SamyGO

I have a question about connecting a cable to a serial line
when i want to capture "init log" / UART /

I did not know anywhere how this is done on this model - could you advise me?


There are models that have a 3.5mm jack connector marked as EX-link so it's clear

but if they don't have it, I correctly understood that if I turn on all the necessary things in the MENU service
at:
https://wiki.samygo.tv/index.php?title= ... /QN_Series

so one USB port changes to TTL output and I then connect this output to the USB converter / TTL output
and it connects to the PC and launches the Putty console?

https://wiki.samygo.tv/images/thumb/5/5 ... RT_USB.jpg

Sorry what exactly is your question ?

so I'll try to write again

i need to do init log via serial communication


LED Samsung UE40J6272
Hawk_M_FHD_PRO1
BN41-02353B SIZE:158*193.5 1.2T
MODEL:BN41-02353 DATE 2015.02.23

in the service MENU I have switched on

RS-232 Jack UART
EXT Link Support ON
Serrial Log On/Off ON

this is how I set it up

the problem is that I have a feeling that none of the USB is in the mode that the DATA output is communication in the TTL mode

if I look at the levels with an oscilloscope I don't see the data there
of course the TTL / USB serial converter I have


where am i making a mistake???

JohnBlack wrote: ↑Sun Mar 20, 2022 6:45 pm the problem is that I have a feeling that none of the USB is in the mode that the DATA output is communication in the TTL mode
if I look at the levels with an oscilloscope I don't see the data there
of course the TTL / USB serial converter I have
where am i making a mistake???

Usually it's first usb from the top. Also set RS232 to DEBUG. Yours is set to UART. Then check. If that doesn't work you can solder cables directly to PCB