Write a file to littlefs using mcumgr and return The system cannot find the path specified

[llly]

I tried to use mcumgr to write and read files to the littlefs of 9160. According to the instructions, I will enter mcumgr conn add acm0 type="serial" connstring="dev=/dev/ttyACM0,baud=115200,mtu=512" first, then enter mcumgr -c acm0 fs upload foo.txt /lfs/foo.txt, will get this error

I have also set CONFIG_MCUMGR_GRP_FS to y

How should I solve this problem？

[Hieu]

Hi llly,

The error seems to be because the command line cannot find foo.txt on your system rather than a problem with the device.

I am not sure where mcumgr expect foo.txt to be without any path, but can you try using an absolute path? Also avoid using any non-ASCII character in the path. Preferably only use alphanumeric character and maybe underscore "_".

Hieu

[llly]

HI Hieu

There is this foo.txt in the current directory of cmd.

I tried using an absolute path, but the result was still the same.

And any command I enter returns this result, even disconnecting the device from the computer is like this.

Is it possible that the command dev=/dev/ttyACM0 needs to be modified?

[llly]

It is indeed a problem with dev, I use this command

mcumgr conn add acm0 type="serial" connstring="dev=COM50,baud=115200,mtu=512"

There will be no prompt for path error.

But now the error has changed to NMP timeout

[llly]

Hi Hieu

Can you help me check this question when you have time？

[Hieu]

Hi llly,

Sorry for the long absence. I have not forgot your question here, but I still haven't figured it out yet.

I will try to keep you regularly updated.

[llly]

Hi Hieu

It's okay, but I want to know if your mcumgr is also in the same situation? Or can you read and write normally on your end? If you haven't encountered this problem, could it be a problem with my driver or something else?