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I currently have a RV32IMC core implementation based on FPGA and I want to boot an operating system on it but somehow I couldn't find any useful documentation about, • which extensions should I implement, • which modes should I implement, • what about virtual memories, memory controllers, memory instructions etc. • which csr's should I implement and also do I need to write a boot sequence from zero is there any source to answer these questions and some others? any help would be appreciated.

Curious where do you folks get started with new PDKs? Do you design some basic circuits and try out new models? Do you read the process manual for tips? or starting with limiting factors like DRC?

https://github.com/lawrie/fpga_pio Anyone want to try synthesizing this for sky130?

CoLab

anyone have any idea how to solve this? i already changed the permissions of the folder and the same error followed, i have the same situation on 2 different computers

i am trying to install openlane on cent os, after i installed and downloaded everything (successfully) and run make test it gives me the following error,

Chip-Chat: Challenges and Opportunities in Conversational Hardware Design https://arxiv.org/pdf/2305.13243.pdf

Don't Miss Out: Last 3 Days to Enroll in the VLSI Physical Design Workshop! We are excited to remind you that you have only three days left to enroll in our highly acclaimed VLSI Physical Design Workshop. This workshop offers a unique opportunity to enhance your skills and knowledge in the field of VLSI design and gain a competitive edge in the industry. Here are some compelling reasons why you should consider enrolling in our workshop: 1. Industry-Grade Expertise: Our workshop is led by industry veterans and experts who have extensive experience in VLSI physical design. The techniques and methodologies taught during the workshop are silicon proven, product proven, and RISC-V proven, ensuring that you gain practical knowledge that is directly applicable to real-world scenarios. 2. End-to-End Open-Source Tools: We believe in empowering our participants with the right tools and resources. Throughout the workshop, you will have the opportunity to work with state-of-the-art, open-source Electronic Design Automation (EDA) tools and Process Design Kits (PDKs). This will not only provide you with complete control over the tools you use but also enable you to continue utilizing them for a lifetime. 3. Diverse Career Opportunities: By attending our workshop, you open doors to a plethora of exciting career prospects. Whether you aspire to pursue a Ph.D., a Master's degree, or establish yourself in the VLSI industry, our workshop equips you with the necessary knowledge and skills to excel in your chosen path. Furthermore, you will even have the opportunity to bring your ideas to life by participating in a chip tapeout project. The clock is ticking, and this exceptional opportunity to enhance your VLSI design capabilities is slipping away. Enroll in our VLSI Physical Design Workshop today and take a decisive step towards a successful and fulfilling career in the field of VLSI. To reserve your seat, simply visit our website. Remember, this is your chance to learn from the best and unlock a world of possibilities. Don't miss out on this limited-time offer! Enroll now and join us for an incredible journey towards VLSI excellence. https://www.vlsisystemdesign.com/advanced-physical-design-using-openlane-sky130/

How can I repair error resolve package not found: yosys It is sky130 install on ubuntu

https://ieeexplore.ieee.org/abstract/document/10129333 - Design of Hardware Accelerators to Compute Parametric Capacitance Tables

When I opened the .def file (generated after floor plan stage) in magic, I didn't get any metal layers(blue) and active layers (pink), just the standard cells and tap cells. Am I missing any switch ? Thanks in advance.

The Co-Champions of the Coalition for Digital Environmental Sustainability (CODES) are thrilled to announce the launch of our dedicated website: http://www.codes.global The CODES community can now explore the learning resources, connect with leaders in digital sustainability and make your ongoing projects a part of something bigger. Visit the site today to learn about the 9 CODES Impact Initiatives and deepen your engagement in the global movement for #digitalsustainability.

Join the VSDSquadron Crowdfunding Campaign and Empower the Next Generation! Hope this message finds you filled with enthusiasm and boundless energy to make a difference. I am reaching out to you today with an electrifying opportunity that has the potential to reshape the landscape of electronic design education. VSDSquadron, an extraordinary platform for learning and exploring the realm of digital design, is embarking on a groundbreaking crowdfunding campaign, and we need your support to soar to new heights. From the 31st of May 2023 until the 30th of June 2023, the VSDSquadron crowdfunding campaign will be in full swing, aiming to gather the essential resources to bring this trailblazing platform to life. By backing this campaign, you will play an integral role in shaping the future of electronic design education. Together, we will unleash a wave of creativity and innovation that will have a lasting impact. Our ambitious plans include initiating production for up to 1000 boards in August 2023, with shipments scheduled for the same month. Imagine the possibilities when a thousand individuals like you are equipped with the tools to embark on a journey of digital design exploration simultaneously. The impact will be nothing short of extraordinary. But our vision extends beyond the first thousand boards. We understand that the demand for VSDSquadron is set to soar, and we are prepared to meet the challenge head-on. For orders exceeding the initial 1000 boards, we are ready to embark on additional production runs for the necessary parts. However, it's important to note that this may introduce a slight delay in delivery, measured in months rather than weeks. Nevertheless, we are committed to ensuring that every order is fulfilled with the utmost dedication and efficiency. VSD has is extremely delighted to have partnered with the Forgefunder crowdfunding platform To become a part of this transformative movement, simply take a moment to complete the order form below: https://forgefunder.com/vsdsquadron/ By participating in this crowdfunding campaign, you are not just securing your own access to the groundbreaking VSDSquadron platform; you are also empowering individuals from all walks of life to embrace the transformative power of digital design. Your generous contribution will bridge the gap and create opportunities for aspiring engineers to shine, regardless of their background or circumstances. We firmly believe that a world where knowledge knows no bounds is within our grasp. Let us unite in this mission to make quality education and cutting-edge technology accessible to all. With VSDSquadron, we have the chance to redefine what is possible, to inspire a new generation of creators and inventors, and to foster a spirit of collaboration and innovation that knows no bounds. Thank you for considering this invitation to join us on this exhilarating journey. Your support will leave an indelible mark on the future of digital design.

I've just published a paper about a rail-to-rail bulk-driven operational amplifier using the open source Sky130 PDK. Unfortunately, I didn't have time to make its layout. A gate driven version, although not rail-to-rail, could be a very interesting design for a future project. Most amplifiers I see here are two-stage Miller amplifiers which could be replaced with a class AB with indirect frequency compensation and achieve better results. https://www.researchgate.net/publication/371162159_Rail-to-rail_inputoutput_bulk_driven[…]_operational_amplifier_with_improved_composite_transistors

Fuel RISC-V and VLSI Innovation: Be a Part of VSDSquadron Crowdfunding for Lasting Change! Dear All, I hope this email finds you well and brimming with excitement for the possibilities that lie ahead. I am writing to you today to introduce you to VSDSquadron, a game-changing platform for RISC-V programming and VLSI chip design, and to invite you to join our crowdfunding campaign. VSDSquadron goes beyond the conventional limitations of a standard board. It is a doorway to boundless opportunities, empowering you to explore the limitless horizons of electronic design. With a minimum of 10 GPIOs, this board is ideal for an extensive range of projects. Its specifications can be found here, and it comes complete with a USB cable for seamless programming, allowing you to dive into your projects without delay. But that's not all - imagine the exciting applications you can experiment with using the VSDSquadron board. Although the necessary parts for demo applications are not included in the kit, here are just a few examples of the possibilities: 1. Line Follower: Create an autonomous robot that follows a line with precision and agility. 2. 4-Digit Seven Segment: Develop a digital display that showcases important information or adds an interactive element to your projects. 3. Servo Motor: Construct robotic arms or mechanisms that can move with precision and control. 4. IoT and Home Automation: Build smart home systems that enhance convenience and efficiency through interconnected devices. To ensure you make the most of your VSDSquadron experience, we have designed a series of labs and courses that cover RISC-V programming, synthesis, physical design, and circuit design. Our carefully curated educational content provides everything you need to get started, including pre-compiled packages for tools, software, and Process Design Kits (PDKs). For the best results, we recommend using Ubuntu 20.04 or above with the provided tools. By supporting our crowdfunding campaign, you not only gain lifetime access to industry-grade educational content but also become part of a community of passionate individuals who share a common goal—revolutionizing the world of electronic design. Collaborate, connect, and exchange knowledge with like-minded enthusiasts, fueling each other's growth and creativity. To contribute to our crowdfunding campaign and secure your access to VSDSquadron, simply visit https://forgefunder.com/vsdsquadron/ and pledge your support. Together, we can unlock a future where innovation knows no bounds. Thank you for considering joining our mission to transform electronic design education. Your support will make a meaningful difference. If you have any questions or need further information, please don't hesitate to reach out to us Ignite your imagination, embrace the power of VSDSquadron, and be at the forefront of innovation!

hi everyone, may i know why that i unable to manually insert buffer in my design to solve max fanout?

Newly Revealed RISC-V Vector Unit Could Be Used for AI, HPC, GPU Applications https://tomshardware.com/news/risc-v-vector-unit--semidynamics

Validating Caravel SoC + User Project Design on FPGA: https://github.com/bol-edu/caravel-soc_fpga https://lu.ma/v37ub54h

This message was deleted.

hello , I was trying to use Caravel template to start using OpenLane but, when i try to run the example project I got this, Does anyone know how to solve this issue?

image.png

#Firesim_ChipYard Hi guys, I have a issue when run "firesim infrasetup" , follow up the guide at https://docs.fires.im/en/stable/Running-OnPrem-Simulations-Tutorial/Running-a-Single-Node-Simulation.html I faced a ERROR "fatal error: experimental/xrt_device.h: No such file or directory" It makes compilation terminate. | _fire/firesim/sim/output/vitis/FireSim-FireSimRocketMMIOOnlyConfig-BaseVitisConfig/build -std=c++17 -include /home/tonns/00_Chipyard/01_fire/firesim/sim/output/vitis/FireSim-FireSimRocketMMIOOnlyConfig-BaseVitisConfig/build/FireSim-generated.const.h -c -o /home/tonns/00_Chipyard/01_fire/firesim/sim/output/vitis/FireSim-FireSimRocketMMIOOnlyConfig-BaseVitisConfig/build/simif_vitis.o /home/tonns/00_Chipyard/01_fire/firesim/sim/midas/src/main/cc/simif_vitis.cc

2023-05-31 05:44:05,317 [flush       ] [INFO ]  [localhost] out:  [01m [K/home/tonns/00_Chipyard/01_fire/firesim/sim/midas/src/main/cc/simif_vitis.cc:12:10: [m [K  [01;31m [Kfatal error:  [m [Kexperimental/xrt_device.h: No such file or directory
2023-05-31 05:44:05,318 [flush       ] [INFO ]  [localhost] out:    12 | #include  [01;31m [K"experimental/xrt_device.h" [m [K
2023-05-31 05:44:05,318 [flush       ] [INFO ]  [localhost] out:       |           [01;31m [K^~~~~~~~~~~~~~~~~~~~~~~~~~~ [m [K
2023-05-31 05:44:05,318 [flush       ] [INFO ]  [localhost] out: compilation terminated.
2023-05-31 05:44:05,319 [flush       ] [INFO ]  [localhost] out: make[1]: *** [Makefile:45: /home/tonns/00_Chipyard/01_fire/firesim/sim/output/vitis/FireSim-FireSimRocketMMIOOnlyConfig-BaseVitisConfig/build/simif_vitis.o] Error 1
2023-05-31 05:44:05,319 [flush       ] [INFO ]  [localhost] out: make[1]: Leaving directory '/home/tonns/00_Chipyard/01_fire/firesim/sim/midas/src/main/cc'
2023-05-31 05:44:05,319 [flush       ] [INFO ]  [localhost] out: make: *** [make/driver.mk:44: /home/tonns/00_Chipyard/01_fire/firesim/sim/output/vitis/FireSim-FireSimRocketMMIOOnlyConfig-BaseVitisConfig/FireSim-vitis] Error 2
2023-05-31 05:44:05,321 [flush       ] [INFO ]  [localhost] out: 
2023-05-31 05:44:05,356 [flush       ] [INFO ]  Fatal error: run() received nonzero return code 2 while executing!
2023-05-31 05:44:05,356 [flush       ] [INFO ]  Requested: make DESIGN=FireSim TARGET_CONFIG=FireSimRocketMMIOOnlyConfig PLATFORM_CONFIG=BaseVitisConfig PLATFORM=vitis vitis
2023-05-31 05:44:05,356 [flush       ] [INFO ]  Executed: /bin/bash -l -c "cd /home/tonns/00_Chipyard/01_fire/firesim/deploy/../ && export RISCV=/home/tonns/00_Chipyard/01_fire/firesim/.conda-env/riscv-tools && export PATH=/home/tonns/00_Chipyard/01_fire/firesim/utils/fireperf:/home/tonns/00_Chipyard/01_fire/firesim/utils/fireperf/FlameGraph:/home/tonns/00_Chipyard/01_fire/firesim/sw/firesim-software:/home/tonns/00_Chipyard/01_fire/firesim/.conda-env/riscv-tools/bin:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/chipyard/sims/1_fire/firesim/target-design/chipyard/software/firemarshal:/home/tonns/00_Chipyard/01_fire/firesim/.conda-env/bin:/opt/conda/condabin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/tonns/00_Chipyard/01_fire/firesim/deploy && export LD_LIBRARY_PATH=/home/tonns/00_Chipyard/01_fire/firesim/.conda-env/riscv-tools/lib && source sourceme-f1-manager.sh --skip-ssh-setup && cd sim/ && make DESIGN=FireSim TARGET_CONFIG=FireSimRocketMMIOOnlyConfig PLATFORM_CONFIG=BaseVitisConfig PLATFORM=vitis vitis"
2023-05-31 05:44:05,356 [flush       ] [INFO ]  Aborting.
2023-05-31 05:44:05,356 [<module>    ] [ERROR]  Fatal error.|

Please refer to the log file to know more information. Do you have any ideas to solve this problem? Best regards, TonNguyen

#Hammer-vlsi _Chipyard Hi guys, I have a issue when I'm trying to run par by using synopsys tool. I faced a Error like this: "ImportError: cannot import name 'SynopsysTool' from 'hammer.vlsi' (/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/__init__.py)"

(/home/trunglt/chipyard/.conda-env) [trunglt@vncs004 vlsi]$ make par tutorial=sky130-icc2
Running with RISCV=/home/trunglt/chipyard/.conda-env/riscv-tools
./example-vlsi-sky130 -e /home/trunglt/chipyard/vlsi/env.yml -p /home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop/par-input.json  --obj_dir /home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop par
[<global>] Loading hammer-vlsi libraries and reading settings
[<global>] Loading technology 'hammer.technology.sky130'
[<global>] Key technology.sky130.openram_lib has a type str is not yet implemented
[<global>] Key technology.sky130.dffram_lib has a type Optional[str] is not yet implemented
[<global>] Key technology.sky130.pdk_home has a type Optional[str] is not yet implemented
[<global>] Key technology.sky130.lvs_deck_sources has a type Optional[list[str]] is not yet implemented
[tech] The install path: /path/to/skywater-src-nda does not exist, looked at key technology.sky130.sky130_nda
[<global>] Key technology.sky130.sram22_sky130_macros is not associated with a type
[tech] Modifying CDL netlist: /home/trunglt/.conda-sky130/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/cdl/sky130_fd_sc_hd.cdl -> /home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop/tech-sky130-cache/sky130_fd_sc_hd.cdl
[tech] Modifying Verilog netlist: /home/trunglt/.conda-sky130/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/verilog/sky130_fd_sc_hd.v -> /home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop/tech-sky130-cache/sky130_fd_sc_hd.v
[tech] Modifying Verilog netlist: /home/trunglt/.conda-sky130/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/verilog/primitives.v -> /home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop/tech-sky130-cache/primitives.v
[tech] Modifying Technology LEF: /home/trunglt/.conda-sky130/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/techlef/sky130_fd_sc_hd__nom.tlef -> /home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop/tech-sky130-cache/sky130_fd_sc_hd__nom.tlef
Loaded Sky130 Tech
Traceback (most recent call last):
  File "/home/trunglt/chipyard/vlsi/./example-vlsi-sky130", line 63, in <module>
    ExampleDriver().main()
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/cli_driver.py", line 1722, in main
    sys.exit(self.run_main_parsed(vars(parser.parse_args(args))))
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/cli_driver.py", line 1627, in run_main_parsed
    output_config = action_func(driver, errors.append)  # type: Optional[dict]
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/cli_driver.py", line 607, in action
    if not driver.load_par_tool(get_or_else(self.par_rundir, "")):
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/driver.py", line 323, in load_par_tool
    config_result = self.instantiate_tool_from_config("par", HammerPlaceAndRouteTool)
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/driver.py", line 190, in instantiate_tool_from_config
    tool_get = load_tool(tool_module)
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/hammer_vlsi_impl.py", line 2302, in load_tool
    mod = importlib.import_module(tool_module)
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/par/icc2/__init__.py", line 21, in <module>
    from hammer.vlsi import SynopsysTool
ImportError: cannot import name 'SynopsysTool' from 'hammer.vlsi' (/home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/vlsi/__init__.py)
make: *** [/home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop/hammer.d:94: /home/trunglt/chipyard/vlsi/build-sky130-icc2/chipyard.TestHarness.TinyRocketConfig-ChipTop/par-rundir/par-output-full.json] Error 1

I was import icc2 from hammer-synopsys-plugins under /home/trunglt/chipyard/.conda-env/lib/python3.10/site-packages/hammer/par Do you have any ideas to solve this problem? Best regards, Peter

AWS uses OpenROAD for low-cost and easy access to IC design solutions on the cloud. Check out he blog here: https://aws.amazon.com/blogs/industries/open-source-chip-design-on-aws/ Posted in #openroad

Hello after runing install from githun getting started I get error XOpendisplay not found on Ubuntu(VM). How can I solve this? I would like to play with sky130 but i am unable to jist install it… anyone? @Tim Edwards @Stefan Schippers Thank you

Dear Community, I'm having an issue with OpenSTA: When defining generated_clocks, the report_check command shows the timing from the last generated_clock until the register and omits all the path from the original clock (master clock). Is there a way to enable the report of the whole path from the original clock? For example, in primetime, with the same procedure, the whole path is shown. However, in OpenSTA, the path from the master clock until the last generated_clock is completely omitted. Thank you in advance. Best Regards, Rodrigo Iga #open_sta #sta #static_timing_analysis