We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Post a reply here, because the original thread is read-only http://www.keil.com/forum/20246/ 13-May-2012 11:51 GMT, Author: Adam Taciak
> I wanted to do something similar, modify NXP Host Lite for typical USB mouse support. But unfortunately I have a problem during very early stage, when Host sends SETUP Packet, mouse does not respond.
I believe your mouse is a low-speed device. NXP USBHostLite doesn't count in low-speed device.
a) At initialization (Host_Init()), HcLSThreshold is set to 0x628 b) At USB_IRQHandler(), HcRhPortStatusN.LSDA (LowSpeedDeviceAttached) of a route hub indicates connection of low-speed device, when HcRhPortStatusN.CCS (CurrentConnectStatus) is '1'. c) Speed bit of each Endpoint descriptor is set to '1' (low speed)
Tsuneo