Memory dump on Jetson Nano

I’m trying to dump the memory of Jetson Nano, using Rekall: without success.
Any help would be appreciated.
Thanks in advance.

I am using devmem2 for memory dump.

It compiles, thanks.
May I ask you how the command to read all memory and write to file?

Don’t have this tools, however the ARM trace32 tools may help on you for this.