Hi ALL how to use J501 micro usb port? i connect a usb storage but the storage didn’t have power.

J501 micro-B USB is not a host port…it is a device port. Meaning the Xavier does not look for devices like keyboards or mice, but instead provides a device. In this case a serial UART used as a serial console. Your host PC can use a serial communications program with settings of “115200 8N1” and act…

Oddly, when I connect this port to my PC running Windows, 4 serial ports are created! I haven’t been able to detect any output from any of these ports, though. If you plug it into a linux box, do you get just one serial port? (I don’t have a computer booting Ubuntu – an Ubuntu VMWare session runni…

I’m not sure what Windows will do. It is one FTDI serial device, but how the driver looks at it from Windows is an unknown for me.

I just tried plugging in my Xavier to my work laptop which boots to Ubuntu 16.04, and I STILL see 4 serial ports appear and disappear on my laptop when I connect and disconnect: tony@ASR-583U:~$ dmesg | grep FTDI [ 63.341364] usb 1-2: Manufacturer: FTDI [ 63.361356] usbserial: USB Serial supp…

Hmmm…interesting! You are right. The FTDI chipset within the UART has four end points. In theory this could do a lot of interesting things, e.g., not just serial console. No serial port can be used for devices though, e.g., this cannot be used for a USB hard drive or keyboard. Would someone from NV…

Hi, J501 is designed as a substitute for J503. It gets UART log from ttyUSB3 and the rest are not used.

Hi DaneLLL thanks for your reply. i have a question about J30 uart port. J30 uart1 pin is just a normal uart interface, different with TX1/TX2. if this information correct or wrong???

Thanks for the clarification! I tried connecting to the last of the 4 ports (ttyUSB3 on the Jetson side) at 115200 bps, and I do indeed see console output at shutdown and boot up.

J501 usb port

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

Trumany November 12, 2018, 7:39am 10

UART1 of J30 is normal UART port as you can see in OEM DG.

Agx xavier UART1(ttyTHS0)

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J501 usb port

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