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AR# 47680

14.1 and later - ChipScope Pro ILA - TRIG_OUT might give multiple pulses in 'Single' Trigger Run Mode

描述

This answer record discusses a known issue in 14.1 and later with the ChipScope ILA core in the ISE design tools.

解决方案

If you are using the ILA core in 14.1 or later with an 8-bit counter design, while in Single Trigger Run Mode, it is possible to see multiple trigger increments. 

The code example below increments "trig_count" by three on the rising edge of bit[7] instead of incrementing by one. 

This is a known issue that is scheduled to be fixed in a later version of the tools.

always @ (posedge clk)
begin
if(trigout)
trig_count <= trig_count + 8'b1;
end

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
47769 14.x ChipScope Pro and 2012.x Vivado Debug - Known Issues for the 14.x ChipScope Pro and 2012.x Vivado Debug tools N/A N/A
AR# 47680
日期 10/17/2014
状态 Active
Type 已知问题
Tools
  • ChipScope Pro - 14.1
  • ChipScope Pro - 14.2
IP
  • ChipScope ILA
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