AR# 32190

10.1.03 XST - "WARNING:Xst:1902 - Value sync for attribute SRTYPE of instance in unit top is not supported"

Description

I receive the following warnings when I instantiate the IDDR primitive in my design:

"WARNING:Xst:1902 - Value sync for attribute SRTYPE of instance <instance name> in unit top is not supported"

Solution

This warning occurs when the generic values are in lower case, as shown below:

generic map (

ddr_clk_edge => "same_edge_pipelined",

init_q1 => '0',

init_q2 => '0',

srtype => "sync"

To resolve this issue, change the values to upper case:

generic map (

DDR_CLK_EDGE => "SAME_EDGE_PIPELINED",

INIT_Q1 => '0',

INIT_Q2 => '0', '1'

SRTYPE => "SYNC")

AR# 32190
Date 12/15/2012
Status Active
Type General Article