Recently i am using the PHID mode of USB, it can enumerate successfuly, but when i try using the write operation to send key buffer to computer, it return an error of FSP_ERR_USB_BUSY, and it never be free,how can i get out of this statues? I have try to close the use and open again, it still return the same error.
p.s. the demo project can work well now, and i make another project that use non-os, it still work well. But when i add those code into my product's project, it get error.
Hope someone can help me, thanks.
Have you looked at this example to get some ideas on what needs to be done?