Multi-Pumping approach for Resource Reduction on Xilinx FPGAs

#DSP48 #ResourceSharing #MultiPumping #MPM #Xilinx

Multi-Pumping approach for Resource Reduction on Xilinx FPGAs

#DSP48 #ResourceSharing #MultiPumping #MPM #Xilinx

Useful attributes for DSP sharing in Vivado 2018.3: DSP_FOLDING and DSP_FOLDING_FASTCLOCK

#UG901 #DSP48 #ResourceSharing #MultiPumping #MPM #Xilinx

“Golden ratio” LUT:FF from UltraFast Design Methodology #UG949 #Xilinx

LiteX is a FPGA design/SoC builder that can be used to build cores, create SoCs and full FPGA designs

https://github.com/enjoy-digital/litex

#Migen #MiSoC #LM32 #Mor1kx #PicoRV32 #VexRiscv #SoC #BuildSystem

Bitstream Interpretation Library (BIL) for reading and interpreting bitstream files targeted at Xilinx FPGA:

- Configuration raw data extraction from bitstream files
- XDL design regeneration out of configuration raw data
- Automated configuration mapping analyzation of a device

https://github.com/florianbenz/bil
#Xilinx #bitstream #BIL #XDL #XDLRC #RAW

Optionally run optimization if there are timing violations after placement

if {[ get_property SLACK [ get_timing_paths -max_paths 1 -nworst 1 -setup ] ] < 0 } {
    puts "INFO :: Found setup timing violations. Running physical optimization once."
    phys_opt_design -directive AggressiveExplore
    phys_opt_design -directive AlternateReplication
    phys_opt_design -directive AggressiveFanoutOpt
}

#Xilinx #Vivado #phys_opt_design #TCL #automation #slack #violation

Automation of Vivado installation on Windows using PowerShell

https://gist.github.com/steelcowboy/4897883fb25082248d64b2f64c782d0d

#Xilinx #Vivado #PowerShell #Windows #Automation @fpgasic

A demo to write to BRAM from File and read from BRAM to file for JTAG2AXI IP Core

https://gist.github.com/imrickysu/a30afc117ac7397fdff6

#Xilinx #Vivado #BRAM #JTAG2AXI @fpgasic

To get eFuse DNA Device ID from Xilinx FPGA:
vivado -mode batch -source get_dna.tcl

https://gist.github.com/kylemanna/d177fd0d562f23d419553689252ceab7

#Xilinx #Vivado #DNA #DeviceID @fpgasic

Good example to start using design automation scripts to program bitstream into Xilinx FPGAs on Vivado CLI

https://github.com/lnls-dig/fpga-programming

#Xilinx #Vivado #CLI #TCL #JTAG @fpgasic

SymbiFlow is a work-in-progress FOSS Verilog-to-Bitstream (end-to-end) FPGA synthesis flow, currently targeting Xilinx 7-Series, Lattice iCE40 and Lattice ECP5 FPGAs. Think of it as the GCC of FPGAs.

https://symbiflow.github.io/
https://github.com/SymbiFlow

#xilinx #yosys #ice40 #series7 #latticesemi

e.g. FPGA tool performance profiling to analyze FPGA performance (MHz, resources, runtime, etc)

https://github.com/SymbiFlow/fpga-tool-perf

#FPGA #profiling

Digilent Vivado Scripts contains a set of scripts for creating, maintaining, and releasing git repositories containing minimally version-controlled Vivado and Xilinx SDK projects. These scripts have been tested with Vivado 2018.2.

https://github.com/Digilent/digilent-vivado-scripts

#vivado #git #versioning

My Vivado .gitignore still uncomplete but might be useful (mostly for non-project mode):
https://gist.github.com/iDoka/6147ea6cf320f09d7ca39477b090486a

PS: Feel free to feedback in coments on github
#vivado #git #gitignore #versioning

Another approach offer Xilinx in AR#61232; they just exclude from "ignore list" (in .gitignore ) filetypes which sould be under version control:
https://www.xilinx.com/support/answers/61232.html

Additional reading:
https://www.xilinx.com/support/documentation/application_notes/xapp1165.pdf

#vivado #git #gitignore #versioning #XAPP1165 #UG1198

By default Vivado Lab setup JTAG clock speed at 15MHz. You can improve bitstream downloading time twice with help of this command:

set_property PARAM.FREQUENCY 30000000 [get_hw_targets]

preceding to doing open_hw_target.

The 30MHz is maximal frequency for MSSPE interface of FT2232H IC which used in Xilinx/Digilent USB-to-JTAG adapters.

#Xilinx #JTAG #FT2232H #Digilent #bitstream

In case of creating HDL-code in #SublimeText you can integrate simple linter like #Verilator (Free and OpenSource tool):

https://github.com/poucotm/SublimeLinter-contrib-verilator

#lint #verilog #SV

For other RTL-editors you can run #Verilator (as Linter) directly from CLI (customize command args with adding your secret sauce):

verilator --error-limit 100 \
    --default-language 1800-2012 \
    --bbox-sys --bbox-unsup -Wall \
    -Wno-DECLFILENAME \
    -Wno-IGNINC -Wno-IGNDEF \
    -Wno-WIDTH -Wno-STMTDLY \
    -Wno-UNDRIVEN \
    -Wno-PINCONNECTEMPTY \
    -Wno-INPUTPINEMPTY \
    -Wno-OUTPUTPINEMPTY

#lint #verilog #SV

Implements the Verilog Language Extension for Visual Studio Editor versions 2015, 2017, and 2019.

Download & Sources

#verilog #VisualStudio #SyntaxHiglighter