Fielding, Steve

USB 1.1 Host and Function IP core

The device getDescriptor request in slave mode is answered in for endpoint 0, with (setup, in (nak 3 times), in 18 bytes data out nak 41 times, out ack.
Then set address setup in 14 naks in ack, then getDescriptor setup, in 4 naks then in which has an error, if I drill into the in transaction it has in, data1 packet with the data I want to send, then no ACK.

I have tried as much as I can think of in the VHDL and C code, I have made some changes to the vhdl to fix certain issues, but this one seems to be pretty tough.  Any idea of what is happening would be really appreciated.

usb slave does not provide complete response to device descriptor request after address is assigned

Simulation all runs fine, but mismatches found between gate-level and RTL simulations.

Synopsys ASIC flow doesn't work

The wishbone ack and r/ data signal are fed back on the same cycle as the strobe signal, should be delayed for a cycle if wishbone compliant?

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USB 1.1 Host and Function IP core