iMX RT1064EVK board - Detected as ttyACM0 - not found in /dev - Ubuntu

[GanesanGuru]

Hi fellas,

I'm using MCUXpresso IDE in Ubuntu 20.04. I was able to flash the board and all. In order to detect the serial comm, I was unable to detect the board @ /dev/ttyACM0.

While fro the dmesg logs, the EVK has been enumerated as ttyACM0. This has been a quite a issue and kindly aid to resolve it asap.

[jingpan]

Hi @GanesanGuru ,

My system is Ubuntu 20.04 too. But it seems work fine. I use Screen, no problem with it. Please check your system. 

When USB connected, it will also enmurate a virtual disk and pop up a bar inform that RT1010-EVK disk is connected. Do you see it?

Regards,

Jing

[GanesanGuru]

Hi @jingpan , 

The device is enumerated as follows:

[26164.502922] usb 3-1: SerialNumber: 02320000152ec3b700000000000000000000000097969905
[26164.505986] usb-storage 3-1:1.0: USB Mass Storage device detected
[26164.506065] scsi host0: usb-storage 3-1:1.0
[26164.507962] cdc_acm 3-1:1.1: ttyACM0: USB ACM device

But, when given, sudo screen /deV/ttyACM0, I'm getting Cannot execute '/de/ttyACM0' : No such file or directory and screen terminates.

[jingpan]

Hi @GanesanGuru ,

This is my screenshot.

Regards,

Jing

[GanesanGuru]

It would be really helpful, if you've mentioned/shared screenshot of how did you managed to connect to DevKit via Screen in terminal, rather than depicting the devkit enumeration @jingpan 

[jingpan]

Hi @GanesanGuru ,

Same as you.

 >> screen /dev/ttyACM0 115200

Regards,

Jing

[GanesanGuru]

Hi @jingpan ,

The problem is that - /dev/ttyACM0 is not even detected in terminal search ?!!

[jingpan]

Hi @GanesanGuru ,

Sorry but in your first post you said "While fro the dmesg logs, the EVK has been enumerated as ttyACM0". What's it mean? Did you compare with my log?

Regards,

Jing

[GanesanGuru]

Hi @jingpan ,

The EVK is enumerated as ttyACM0, as shown in dmesg logs

Device is able to code & debug too, as shown in IDE,

When looking for ttyACM0 device @ /dev directory, there is nothing.

Later on debugging the IDE - Its showing as, 

 Hence, for the same /dev/hidraw0 -- "screen /dev/hidraw0 115200" results in screen is terminating

What am I missing here?!

[jingpan · Accepted solution]

Hi @GanesanGuru ,

You can search on internet. There is many discuss about /ttyACM0 not appear. It seems this problem is about driver.

Regards,

Jing