Hello,
i am working with KL25Z.
i am using KSDK 1.3.0 and KDS 3.0 for given Example of USB_CDC in SDK.
i want to send data to UART TO USB, it's work fine but after some char. it had been give error like:
usb_device_send_data: DEV_GET_XD failed
and some times char are missing ex:i send 1234 from UART but USB receive 134 like this.
what was the problem?
please give any idea or solution to solve this problem.
thank you..!!
Hello Arth Shah,
Please try the newest KSDK2.2_FRDM-KL25 usb_cdc code.
You can download KSDK2.2_FRDM-KL25 from this link:
Welcome to MCUXpresso | MCUXpresso Config Tools
SDK Builder, board choose FRDM-KL25, then generate the code, and download it.
I have test it on my side, it works ok.
Please try it at first!
Any question, just let me know!
Have a great day,
Kerry
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi
See http://www.utasker.com/kinetis/FRDM-KL25Z.html
for industrial quality CDC operation ("FRDM-KL25Z USB-MSD Device using internal Flash with three composite CDC interfaces" for example).
If you need to use the KSDK CDC examples it is probably best to visit Eric Styger's https://mcuoneclipse.com/ and search for tips about configuring it and patching its bugs.
Regards
Mark