USB Host Controller (FTDI FT313) - Problem with USB Enumeration (Set Address)

[kratos85]

Hi everyone,

I am currently developing a USB Host Controller driver for the USB Host Controller chip FTDI FT313. I am stuck right now in the USB Enumeration device. I thought that I finished successfully the enumeration process but it seems that the USB state is still the default state and not the configure state. I looked carefully at the USB transactions and it seems that I have some problems with the Set Address request. I want to know specifically if someone has encounter the same problem. I allocate one qTD (Transfer Descriptor) for start the setup phase and send the request, and one qTD for the status phase (IN, zero-byte length). I provide you the content of the qHead and the qTransfer Descriptor

qHead (Memory address : 0x1000)
DW0 : 0x00001003
DW1 : 0x0040E000
DW2 : 0x40000000
DW3 : 0x00000000
DW4 : 0x00002000

qTransferDescriptor#0 (Memory Address : 0x2000)
DW0 : 0x00002020
DW1 : 0x00000001
DW2 : 0x00080E80
DW3 : 0x00003040

qTransferDescriptor#1 (Memory Address : 0x2020)
DW0 : 0x00002041
DW1 : 0x00000001
DW2 : 0x00008D80
DW3 : 0x00003060

SetAddressRequest (Memory Address : 0x3040)
DW0 : 0x00010500
DW1 : 0x00000000

Thanks in advance

 

[kratos85]

Hi everyone,

I'm still facing this problem. Looking step by step to all the transactions in the enumeration list, I think that the problem is that the transaction is correctly executed but the device did not process the set address correctly. When I send a Get Descriptor (Configuration) using the new address, I got a USB error (possibly a NAK) but if a send the same transaction with the default address (0x0) the transaction is executed correctly.

Did anyone have the same problem? Thanks in advance