Dear All,
am facing problem on writing USB
device port driver for MPC8280,when i connect it to the host PC through USB
cable .device descriptor is happening host is setting the address but device
configuration is not happening properly...it hangs there in USB busy
handler.
below is the output of the snippet in hyperterminal for usb debugging
Debug statements
GetDescriptor request length = 0x40
Device Descriptor...
bd status = 3ec0
In TX USB event register = 108
Recieved PID token = 0x3cc0
USB:SetAddress 2
bd status = 3800
bd status = 3ac0
In TX USB event register = 108
GetDescriptor request length = 0x12
Device Descriptor...
bd status = 3ec0
In TX USB event register = 109
Recieved PID token = 0x3cc0
In USB_BUSY HANDLER : 0x108
it hangs in usb busy handler , am feeling data pid toggling may be the
issue.
please help me out to sort this issue....let me know if any codes are
available for USB Device & USB Host testing for MPC8280.
am testing in FreeScale Code Warrior IDE
waiting for the reply ASAP
Regards,
Gurumurthy
--
Gurumurthy Gowdar
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