AR# 59963

描述

I am seeing memory errors when using LPDDR2 via the Zynq-7000 PS DDRC controller. 

How do I resolve this issue?

解决方案

There are multiple LPDDR2-related memory parameters that are not correctly generated in  ps7_init.c and ps7_init.tcl from the user Vivado/XPS GUI selections. 

These include:

• reg_ddrc_t_cke
• reg_ddrc_wr2rd
• reg_ddrc_write_latency
• reg_ddrc_t_rcd
• reg_ddrc_emr (write latency)
  

This issue is fixed in Vivado release 2014.1.

Workarounds:

A patch is available for ISE/EDK 14.7 in (Xilinx Answer 60454)