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Quad SPI-3 to SPI-4 Link Layer
Lattice Semiconductor
Bridge Core User’s Guide
6. In the Implementation Options, set the following:
– Fanout guide: 1000
– Enable FSM Compiler
– Enable Resource Sharing
– Set the global frequency constraint to 104MHz.
7. Select run.
Synthesis Using LeonardoSpectrum
To synthesize the Quad SPI-3 to SPI-4 Link Layer Bridge solution LeonardoSpectrum in one step, go to the direc-
tory “eval\synthesis exemplar” and enter “run_syn.bat” (for PC). A top-level EDIF for the application will be pro-
duced. Users may use run_syn.bat as a guide and template if they are creating their own unique system-level
project solution.
The following step-by-step procedure may also be executed. Note that the step-by step ?ow results vary from those
obtained with the scripted ?ow due to possible small differences in options between both ?ows.
The step-by-step procedure provided below describes how to run synthesis using LeonardoSpectrum.
1. Create a new working directory for synthesis.
2. Launch the LeonardoSpectrum synthesis tool.
3. Start a new project and select Lattice device technology ORCA-4E.
4. Select Input tab, set the Working Directory path pointed to the source directory.
5. Open the speci?ed ?les in the following order:
source/ exemplar/orca4_leonardo.v
source/top/qspi3_link_params.v
source/ exemplar/rfclk_pll_bo.v
source/ exemplar/rfclk_hpll_bo.v
source/ exemplar/mycore.v
source/ exemplar/sysbus_fpsc.v
source/top/spi_324l_o4_1_001.v
source/top/fpga_io.v
source/top/orspi.v
6. Select orspi.v, use the right click button on your mouse, and choose from the list “Make orspi.v Top of the
Design”
7. In the Constraints tab, set Clock Frequency as 104MHz.
8. Set the Synthesis Directory, created in step 1, as the path where you would like to save the output netlist.
9. Specify an EDIF netlist ?lename for the output ?le. This top-level EDIF netlist will be used during Place and
Route.
10. Select Run Flow
Place and Route
Once the EDIF netlist is generated, the next step is to map, place and route the design.
The step-by-step procedure provided below explains how to run an EDIF based ?ow through place and route using
ispLEVER Project Navigator.
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