We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 51670

Vivado HLS - RTL generated by HLS results in XST synthesis error "INTERNAL_ERROR:Xst:cmain.c:3464:1.56 - Process will terminate."


RTL generated by Vivado HLS results in the following XST synthesis error:

"INTERNAL_ERROR:Xst:cmain.c:3464:1.56 - Process will terminate. For technical support on this issue, please open a WebCase with this project attached at http://www.xilinx.com/support."


To work around this issue, update the ".xst" file with -use_new_parser option.

For GUI such as ISE or PlanAhead tools, update the Synthesis Property or Setting with "-use_new_parser yes" in the other command line options.

AR# 51670
Date Created 09/06/2012
Last Updated 09/06/2012
Status Active
Type Known Issues
  • Spartan-3A DSP
  • Virtex-5
  • AutoESL
  • Vivado - 2012.2