Hi all, I'd like to use Udoo Neo with 3 serial devices (managed by python scripts running on UDOObuntu). Is this possible? For one device, I need TX+RX port (preferebly on UART6), for the remaining two devices I just need the TX port (with UART1 and maybe UART2?). I successfully tested UART1 and UART6, but when I try to activate UART2 via device tree editor, UDOO doesn't boot anymore (green lamp is on, remote connections not possible, HDMI Out is showing a black screen and a picture of Flux in the top left corner. It's reproducable with UDOObuntu 2 RC1, I didn't do any updates via apt.). Thank you, guys. AlphaBeta
I got the same problem. I need UART2 to monitor M4 (a little messy approach you need a serial cable and a RS232 converter) since I also have a problem with serial monitor using USB OTG (less messy way) which is a windows CDC Serial driver. I did all procedure as the tutorial says. Looks like I will use the A9 to monitor M4 (a more messier approach). Looks like I am losing options here. My computer is windows 8 64-bit if someone can solve the CDC Serial driver then at least I can have a way to monitor M4. I am open to any suggestions. Thanks to all report problems and problem solvers. Happy Udoomaking
Dear guys,, by default UART 2 is assigned to M4 and works as serial debug (not accessible from Arduino). If you wanna use it under Linux you have to use device tree editor and turn M4 off. It has to be off. To turn off M4 core: http://www.udoo.org/docs-neo/Cookbook_Linux/Turn_off_M4_Arduino_core.html
