Thanks zaq.1. You are right, I have downloaded from http://bbs.eetop.cn/viewthread.p ... ighlight=ise%2B14.1
I checked the vivado's version. It's 2012.1. but the HLS feature and also visually IP Integrator are only available on 2012.2.
Download the below videos from youtube that describe HLS and IP integrators. They are wonderful.
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HLS (high level synthesis):
http://www.youtube.com/watch?v=YSPugLS1V3U
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IP integrator:
http://www.youtube.com/watch?v=htDuMjmgKfo&feature=results_main&playnext=1&list=PL270DFF04959A346B
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Talking about how to work with Vivado:
http://www.youtube.com/watch?v=H6W4HKbjnaQ&feature=results_main&playnext=1&list=PL71A9E924ED61B8F9
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I also want to know, is the version in the http://www.xilinx.com/support/download/index.htm, 2012.1 or 2012.2? Can someone please inform?