NVIDIA Jetson TK1

[jesseclayton]

Originally Posted by sparkytwd

My dev board just showed up, thanks so much to Jesse. When I saw it had a 12V power supply instead of 5v like the other boards, my concern is that this would be an issue on the robot.

Under heavy motor load, even a fully charged battery can dip to 11v, which causes a problem for onboard systems that require a steady 12v. Looks like this won't be an issue: http://developer.download.nvidia.com...14May01_V2.pdf

The range seems to be 9.5v to 16v (13.2v if you're using a SATA drive that uses the 12v rail, though I think that's only spinning drives that regularly use that, which on the robot will already have more issues)

In addition to what others have posted, there is some information on using alternative power sources on the Jetson public wiki: http://elinux.org/Jetson/Jetson_TK1_Power .

Notably:

The Jetson TK1 accepts a standard 2.1mm DC barrel plug (center-pin is positive while the outer ring is negative) and is rated for 12V DC input, but will actually work with any input voltage between 9.5V to 13.5V. Note that SATA disks require a fairly precise 12V, so you shouldn't be using voltages at those ranges if you will power SATA hard drives from the Jetson TK1. It is known that the Jetson TK1 board won't turn on at less than 9.5V and it will likely be damaged at 16V or above. It may also be possible to power the Jetson TK1 board somewhere in the 13.5V to 16V range but NVIDIA has not tested this.