Hello,
I am having trouble porting a working USB composite device application from the LPC54114 to the LPC11U68.
Problem Background:
In this application, the device is either enumerated as CDC only, or a composite CDC + MSC device. The problem occurs in enumerating as a composite device.
Debugging steps:
I'd like to confirm that the device descriptor file and implementation of the ROM driver bug workarounds are both correct. Further debugging steps would be appreciated.
Thank you,
Gabriel
Which device descriptor file are you referring to? If this is included in a NXP SW package, please let me know the package link name. I will check.
See attached descriptor file. It is based on descriptor files from the LPC Open SW.
This is the download link:
https://www.nxp.com/webapp/Download?colCode=lpcopen_3_03_lpcxpresso_lpcxpresso_11e68
from this page:
thanks,
Gabriel
HI gllake
I checked, there's no known issue of this package descriptor file.
Thanks,
Jun Zhang
Great. More specifically to my project, do you see an issue my my descriptor file cdc_desc.c or in the implementation of the ROM driver bug workarounds in usb_init.c: artf32219, artf45032, artf44835, and artf32289.
-Gabriel
Does your escriptor file cdc_desc.c and usb_init.c are default NXP SW or you revised them?
If NXP default version, please let me knoe the link. I will check.