2. 技术支持
  3. AR# 4492: FPGA Express: Cannot have complex expression in always block sensitivity list (VE-92)
  4. AR# 44929: AXI Bridge for PCI Express - Reading from the Control Registers in the Bridge Returns Incorrect Values

AR# 44929

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AXI Bridge for PCI Express - Reading from the Control Registers in the Bridge Returns Incorrect Values

描述

Accessing the Control Registers of the AXI bridge for PCI Express can result in corrupt data. This will happen if the interconnect is not connected to the same clock as the output clock from the bridge.

解决方案

To work around this issue, add following parameter to the axi_pcie bridge instantiation in the Microprocessor Hardware Specification (MHS) file:

parameter C_INTERCONNECT_S_AXI_CTL_IS_ACLK_ASYNC = 1

This can also be changed through the interface with the following checkbox:

 

Revision History:
11/28/2011 - Added image
11/09/2011 - Initial release

链接问答记录

主要问答记录

Answer Number 问答标题 问题版本 已解决问题的版本
44972 AXI Bridge for PCI Express FAQ N/A N/A
AR# 44929
日期 08/26/2013
状态 Active
Type 综合文章
IP
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