Serial Port

StfLA

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Hi,

I'm trying to use the serial port inside the Yi, to control it directly from the Ambarella shell.

I've discovered that some pins on J3 are the same as the TX and RX pads on the main board. As it was easier to solder I used them.

But, it doesn't work. I have a steady 3.3V signal on TX and TX, no information are transmitted.
I tried to add "mesg rtos on" and "mesg dsp on" in the autoexec.ash but the result is the same.

It seems that the serial port is disabled in the firmware. Could someone confirm this, or find a way to enable it ?
P1030300.JPG P1030297.JPG P1030296.JPG
 
Last edited:
I don't know what I did wrong, but today I get something....not useful...
In putty, when I power on the Yi, I receive:
Code:
factory reset enable file not exist
factory_init <-3>
 
StfLA, any luck?

How did you got this message? Did you put some command in autoexec?
 
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