UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!
Page Bookmarked
  1. Xilinx - All Programmable
  2. Support
  3. AR# 32329: 11.2 EDK, xps usb2 device - USB Mass storage example is not working on MicroBlaze systems with Cache disabled and with DMA enabled in the USB core

AR# 32329

11.2 EDK, xps usb2 device - USB Mass storage example is not working on MicroBlaze systems with Cache disabled and with DMA enabled in the USB core

Description

Keywords: universal, serial ,bus, DMA

The issue is related to initiating DMA transaction (for a transmit condition) before waiting for DMA completion of the previous transfer (Transmit condition) in interrupt context. Because of this situation, the device is sending a wrong response to the host, and the device is not detected by the Host.

Solution

This issue has been fixed in EDK 11.2.

EDK 11.2 is available at:
http://www.xilinx.com/xlnx/xil_sw_updates_home.jsp


AR# 32329
Date 06/08/2009
Status Active
Type General Article