It seems, the intercore communications example doesn’t work with MilkV Duo 256?
Firstly, the latest ready-made image doesn’t have sftp, so I had to use the -O key to transfer the file. Secondly, when running it, it doesn’t print out the messages – just these two lines:
C906B: cmd.param_ptr = 0x2
C906B: cmd.param_ptr = 0x3
and that’s all.
Besides, the pin numbers in the blink example also don’t correspond to the published tutorial (and, which is worse, i can’t find those magic numbers from the datasheet).
It turned out, the FreeRTOS core was just disabled by default for Duo256.
Now it works (kudos to rjgawuie1))
The next question is how do i pass a string from one core to another. I’ve read about shm tools, but the mailbox buffer is just 8bytes (and that’s the entire size of a pointer, so no space left for any CMD_id).
In my attempts to get passworless ssh login, I added -v key to /etc/init.d S50dropbear, did a reboot, and couldn’t login to the system anymore.
Some time ago I played with uart0, but it seemed to be read-only? Or was it because of a bad wire?
Could anyone confirm that I should be able to connect to the system without ssh, from UART console?
okay, that was my bad - bad soldering
I successfully connected via UART, launched dropbear, connected via ssh and reverted everything back.
However, I still face problems with passwordless login… ;-(
Yes, just generate your keys as normal and use the /root/.ssh folder to hold the authorized_keys file. (if you create a normal user on busybox, then just do the same in $HOME/.ssh) Works fine. RSA or ECSDA keys work.
