Posted on May 17, 2011 at 12:02using Dual Port RAM.

Posted on May 17, 2011 at 12:00Hi, All: I am writing the code fro uPSD3234 USB now, but the problem is after I received the command from Host controller, I can't change the usb address, no matter what kind of address I assign to usb, its address is ...

Posted on May 17, 2011 at 11:59The problem is solved. There is SRAM and outside peripheral device collision.

Posted on May 17, 2011 at 11:59Hi, All I changed my boot rom from secondary flash to main flash, The problem is I can't access my SRAM inside. I tried to swap the two flashes back to former status, I still can't access the SRAM, any idea about this?...

Posted on May 17, 2011 at 11:59you are right, I only let FS0 picked hex file, after I let FS1 picked the same hex file, The code runs. thanks. Frank