Flash multi TX2 error

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

hi There,
i want to use multi flash script to flash TX2(7c18), but in sample script i found model “7c18” was ignored, and i manually run the steps, found “tegraflash.py” would report error, can not lsusb.
may i know why 7c18 is not supported?
please correct me if i’m wrong, thanks!

2

hello jin.wu,

  1. may I know did you follow the steps by referring to Flashing Multiple Tegra Devices
  2. what’s “7c18” means exactly? could you also share the linux standard commands for that.
    thanks
3

“7c18” is the USB device ID of a TX2…meaning “lsusb” sees the device (but if there are multiple TX2s, then all would look the same and be ID “0955:7c18”).

4

Thanks, but if there are multiple TX2s with the same ID, then it’s hard to distinct which one.
second, the sample code in “Flash Multiple Tegra Devices”, i still don’t understand why 7c18 was ignored. Does it means JetPack can only flash one TX2 by one?

	case "${product}" in
	"7721")
		;;
	"7018")
		;;
	"7c18")
		;;
	*)
		continue
		;;
5

I’ve never used multi-flash, so I don’t know how it actually works. On the other hand, each device has both an ID and a bus/device combination (basically a port, though it can change with re-enumeration). It would be up to the flash script to iterate through the list of all devices in the ID list by means of bus/device address (or at least that’s how I’d do it…USB does not have the equivalent of multicast).

6

hello jin.wu

there are bugs in the multi-flash sample code,
please refer to Topic 1038136 to update the scripts for testing.
thanks