![modelsim pe not enough space modelsim pe not enough space](https://i.ytimg.com/vi/cu4G8RjEMf4/maxresdefault.jpg)
So I post my findings here.Īltera recommends using synchronous memory blocks for Altera designs. I wanted to reply, but had some problems with my Altera account and could not do it. PS: I found that someone had reported the same problem at the Altera forum, but nobody replied.
#Modelsim pe not enough space code
So, next I have to modify the source code so that it works with FFT megacore v9.1. And it seems that FFT megacore v9.1 is not compatible with the version 2.1.3.
![modelsim pe not enough space modelsim pe not enough space](https://www.researchgate.net/publication/326471392/figure/fig1/AS:649912119197698@1531962532521/a-Traditional-memory-based-FFT-architecture-and-b-fine-grained-DMBA-equivalent_Q640.jpg)
In my Quartus installation, I can only find FFT MegaCore v9.1 IP. I also checked the source code, and found that indeed FFT megacore v2.1.3 was used. According to the README file of the example design, this design expects that we use FFT MegaCore v2.1.3. At my PC, the path is something like "C:/Altera/91/.".Įven after correcting the path, the compilation still failed.
![modelsim pe not enough space modelsim pe not enough space](https://i.ytimg.com/vi/deu5SqV5aCE/sddefault.jpg)
"C:/software/altera/MegaCore/fft-v2.1.3/lib/fft_pack.vhd"Of course, this path is different from the path at my PC. If we check the project QSF file, we will find that the FFT megacore function is to be found at This post is concerning this Altera example design Verilog: FFT With 32K-Point Transform LengthĪfter I downloaded the code, I compiled the design using Quartus II v9.1, and got the following messages:Įrror: Node instance "asj_fft_dualstream_inst" instantiates undefined entity "asj_fft_dualstream"I found that this is due to the FFT MegaCore Function user library.