Author Topic: Gowin Simulation  (Read 10372 times)

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Offline ali_asadzadehTopic starter

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Gowin Simulation
« on: June 24, 2020, 10:58:33 am »
Hi,
I have made a board for GW2AR-LV18QN part, And every thing is working as expected and I have written  UART,SPI, PWM peripherals and have tested them successfully.

Now I want to use the IP cores, for example the FIFO one, The problem for now is how can I simulate my design with the Gowin IO cores, using Modelsim etc...

I have found a folder named simlib in the installation folder,

I wonder if anyone in here has done simulation with gowin IP on modelsim or another simulation software, is it possible? how?

Any tips would be highly appreciated.
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Offline ali_asadzadehTopic starter

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Re: Gowin Simulation
« Reply #1 on: June 25, 2020, 09:32:37 am »
Does any body use Gowin FPGA's in here?
The tools generate a SDF file, can it be used for simulation? how?
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Offline Bassman59

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Re: Gowin Simulation
« Reply #2 on: June 25, 2020, 07:08:28 pm »
Does any body use Gowin FPGA's in here?
The tools generate a SDF file, can it be used for simulation? how?

Assuming that Gowin is no different from any other FPGA vendor --

In addition to the SDF file, the Gowin tools should provide a VHDL or Verilog model of the design which replaces your RTL/behavioral code with primitives. So you bring the new model and the SDF into your simulation tool, which needs to be able to do such back-annotated simulation. You use the same test bench as with your original design.

ModelSim and Aldec can do such simulation. I think that ghdl can do it, too.
 

Offline ali_asadzadehTopic starter

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Re: Gowin Simulation
« Reply #3 on: June 28, 2020, 07:33:45 am »
thanks, Do you have any web link or tutorial on how to do it?
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Offline up8051

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Re: Gowin Simulation
« Reply #4 on: May 10, 2021, 08:13:24 pm »
Did you resolve problem with IP simulation?
 

Offline FlyingDutch

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Re: Gowin Simulation
« Reply #5 on: May 11, 2021, 08:38:48 am »
Hello,
there is short note about simulation for Gowin FPGA in this document:

https://www.gowinsemi.com/upload/database_doc/1/document/5bfcfcab42d1c.pdf?_file=database_doc%2F1%2Fdocument%2F5bfcfcab42d1c.pdf

See paragraph : 6.4 Simulation.

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Offline ali_asadzadehTopic starter

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Re: Gowin Simulation
« Reply #6 on: May 11, 2021, 09:05:16 am »
Thanks, But There is no such option in the tools, I'm using 1.9.7.01 Beta, and I think it's the latest version.
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Offline Saa1206

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Re: Gowin Simulation
« Reply #7 on: January 02, 2022, 08:27:16 am »
Wanna simulate Gowin's IP-blocks in, say, Mentor's ModelSim.
E.g. CPLD GW1N-UV1P5LQ100C6/I5 OSCO, described in UG286-1.9.1E Gowin Clock User Guide.pdf page 100/104 topic 6.1.5 OSCO
At %Gowin_DIR%\Gowin_V1.9.8.01\IDE\simlib\gw1n\prim_sim.v look for OSCO

Code: [Select]
//OSCO,for gw1n-2
//Fosc = 250M/FREQ_DIV
module OSCO (OSCOUT, OSCEN);
parameter  FREQ_DIV = 100; // 2~128,only even num
parameter  REGULATOR_EN = 1'b0;  //1'b0, Powered by VCC!; 1’b1: Powered by regulator(only UV/LV).
output OSCOUT;
input OSCEN;

reg oscr;
realtime half_clk;

initial  begin
    oscr = 1'b0;
    half_clk = 2*FREQ_DIV;
end

assign OSCOUT = OSCEN ? oscr : 1'b1;

always
       begin
            #half_clk;
            oscr = 1'b1;    
            #half_clk;
            oscr = 1'b0;
       end

endmodule

But what are FREQ_DIV and REGULATOR_EN?!
And where is clock division?!
 

Offline ali_asadzadehTopic starter

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Re: Gowin Simulation
« Reply #8 on: January 02, 2022, 10:13:54 am »
Saa1206 could you do any simulation with IP at all?
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Offline Mecanix

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Re: Gowin Simulation
« Reply #9 on: April 03, 2024, 03:12:21 pm »
For the record. This will teach how to import the Gowin's precompiled libraries into ModelSim / QuestaSim and run simulations based on their IPcores. Tested yesterday with QuestaSim 2023 & Gowin Designer 1.9.9.01 (build71333).

https://youtu.be/2uUcYFE-3S8?t=393   
 
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Offline mon2

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Re: Gowin Simulation
« Reply #10 on: April 05, 2024, 10:17:16 am »
BTW, a new version of the Gowin IDE was released earlier this week.
 
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Offline ali_asadzadehTopic starter

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Re: Gowin Simulation
« Reply #11 on: April 06, 2024, 09:41:15 am »
Quote
For the record. This will teach how to import the Gowin's precompiled libraries into ModelSim / QuestaSim and run simulations based on their IPcores. Tested yesterday with QuestaSim 2023 & Gowin Designer 1.9.9.01 (build71333).

https://youtu.be/2uUcYFE-3S8?t=393   

Thanks for sharing >:D
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Offline Rainwater

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Re: Gowin Simulation
« Reply #12 on: April 26, 2024, 03:19:39 am »
For the record. This will teach how to import the Gowin's precompiled libraries into ModelSim / QuestaSim and run simulations based on their IPcores. Tested yesterday with QuestaSim 2023 & Gowin Designer 1.9.9.01 (build71333).

https://youtu.be/2uUcYFE-3S8?t=393
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