Article ID: 000086279 Content Type: Troubleshooting Last Reviewed: 05/13/2019

Compiler Error: Unrecognized function call: in OpenCL compilation with custom RTL code with Cyclone V Soc BSP

Environment

    Intel® Quartus® Prime Pro Edition
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Description

Due to a problem in the Quartus® Prime software and Intel® FPGA SDK for OpenCL™ version 14.1 and later for  Cyclone V SoC platform, when integrating a custom RTL module into the OpenCL design, compile may fail with Cyclone® V SoC platform only for error below:-

 

Compiler Error: Unrecognized function call: acl.external.iowr.i1.si32.p4si32

Resolution

This problem has been fixed in the Quartus® Prime software and Intel® FPGA SDK for OpenCL™ version 17.0 for the Cyclone V SoC platform.

As a workaround, user can open up the cyclonev_tsm.xml file and add in the code below, this code is also available in the  Stratix® V platform.

 

  <!-- acl.external.iord callinst -->

  <group acl_intrinsic="acl.external.iord">

    <type base="any">

      <style name="default">

        <max-latency value="1"/>

        <min-capacity value="1"/>

      </style>

    </type>

  </group>

 

  <!-- acl.external.iowr callinst -->

  <group acl_intrinsic="acl.external.iowr">

    <type base="any">

      <style name="default">

        <max-latency value="1"/>

        <min-capacity value="1"/>

      </style>

    </type>

  </group>

Related Products

This article applies to 3 products

Cyclone® V SE SoC FPGA
Cyclone® V ST SoC FPGA
Cyclone® V SX SoC FPGA

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