I have run into a problem with the ULPI on my TWR setup. I am using the TWR-K60F120M, and TWR-SER2. I have tried porting the USB stack 4.1.1 bare metal K70 ULPI demo over to the K60. When I plug in the device I get a USB Suspend interrupt, a USB Reset Interrupt followed by 4 Port Change Interrupts spaced 4 seconds apart. At that point, windows gives a device descriptor failed error. I have breakpoints and no attempt to read the descriptor has happened. I know others have ported this demo to the K60 and was wondering if there is anything special I need to look out for. I've ensured my debugger isn't an issue by removing its connection to the trace lines. Looking for any other advice. Thanks!
Hi Michael,
I also did a porting for TWR-K60F120M, and run the Host MSD demo(C:\Freescale\Freescale USB Stack v4.1.1\Source\Host\examples\msd) with TWR-SER2, the result is ok . Please kindly refer to the following for details.
Which demo did you port? Is it the same demo? Please kindly help to clarify.
Have a great day,
Kan
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Now I have trouble in coding for USBHS of K60F12 to get an HID/MSD USB Device.
If you could share your code to me,I would appreciate very much !!!
My e-Mail is meijunick@163.com .
I am really looking forward to having your guidance .
Hi wenxuewang & messinick
I have put the detailed steps for the porting in the following link, How to add support for K60 120MHz part in USB stack ver 4.1.1 , please kindly refer to it for details.
Hope that helps,
Have a great day,
Kan
Freescale Technical Support
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Could you please share your porting high speed usb codes for me?