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gazel's avatar
gazel
Icon for New Contributor rankNew Contributor
4 years ago

Error (171011): Can't assign node "led" to location PIN_AA24 -- node is type Combinational cell

I'm trying to implement a multiplication program using file I/O written in C++ on FPGA using intelhlscompiler. I have completed the high-level synthesis and implemented it on 5CSXFC6D6F31C6, but the...
gazel's avatar
gazel
Icon for New Contributor rankNew Contributor
4 years ago

Thank you for your kindness.
led <= calc_returndata;
and I was able to implement it.
However, the LED did not light up and there was no file output.
If there is any concern, it is related to qsys. I have the following connection, is it correct?

  • sstrell's avatar
    sstrell
    Icon for Super Contributor rankSuper Contributor
    4 years ago

    I am presuming that you want returndata in the Platform Designer system to appear on the LED. You need to export the returndata interface (double-click in the Export column and give it a name) and instantiate the system, connecting the exported interface (single signal interface, I presume) to the led output. You can see the instantiation template you'll need in the Generate menu in Platform Designer. You'd need to recompile the design of course.

    Again, I don't know how this fits into HLS, but for normal FPGA design, this is what would be required.