Hi,

Did you find a fix for your problem with CDC? I have a similar problem with MIDI on the OTG port of ESP32 P4.
See my post in this category.

J.

The problem have been reported by Sprite to Espressif, but so far I have no feedback about the solution
As of today the list of chips with the ...

Any update on this? I have the same issue on the ESP32-S3 at even modest rate of data transfer.

None, so far.

Hello Sprite,

Any news about this issue? Can you point me a link where I can keep track on this issue without bothering you and the other users of this forum ?

Thanks!

I'll put in a ticket to fix this in our Jira.

Thank you Sprite.

I believe that the ASCII file is not necessary anymore, right ? It is just a plain ascii .hex file representing around 2900 bytes of data. I tried to attach it on the page but I got an 'http error' message.

Ok, installed and configured ESPIDF 5.4.1

1) Compiled the example "peripherals\usb_serial_jtag\usb_serial_jtag_echo" for the 3 platforms (configured it first with set-target .
2) Configured Putty for the respective serial port and marked settings->terminal->implicit LF in ervery CR.
3) Paste the ...

I would bet my chips in the Arduino layer because the problem happens with the simple 'serial echo' code you see in the first post.

I should do some tests on the IDE then.

I have migrated to 3.2.0 and unfortunately the board still loose characters just the same.

I have also tested two more boards that I have here: xiao ESP32C6 and a red unbranded ESP32S2 and both loose characters too. The main difference is that the S2 to loose less characters (maybe due to CPU ...

Note to moderators: If this section of the forum is still not the right place to post please point me to the best place to do it.

Couldn't track the exact origin of the problem related below and I haven't found exactly the same problem on any of the forums and bug tracks I have looked for ...