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Chipyard

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This google group is the best place to ask questions about Chipyard. Learn more at https://github.com/ucb-bar/chipyard

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Lucas Arruk, Junaid amjad2

Aug 30

Issue on running CoreMark bare-metal on RocketCore

Hi, I ran the same test with the default rocket config and it's working fine. Well it did not

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Issue on running CoreMark bare-metal on RocketCore

Hi, I ran the same test with the default rocket config and it's working fine. Well it did not

Aug 30

John Charlie, Junaid amjad2

Aug 30

Any Documentation about SoC registers in default Chipyard configurations?

Hi, There is not such a datasheet or something, but we do get .json files listing all memory mapped

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Any Documentation about SoC registers in default Chipyard configurations?

Hi, There is not such a datasheet or something, but we do get .json files listing all memory mapped

Aug 30

Aug 29

SD card becomes slower after booting Firemarshal image

After booting buildroot successfully with an SD card speed of 25MHz, reading data from the second

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SD card becomes slower after booting Firemarshal image

After booting buildroot successfully with an SD card speed of 25MHz, reading data from the second

Aug 29

Kelly Xu, Junaid amjad5

Aug 25

Swapping ROM and DRAM addresses - Sodor Core

Thank you, this worked! On Monday, August 25, 2025 at 12:17:45 PM UTC-4 junaida...@gmail.com wrote:

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Swapping ROM and DRAM addresses - Sodor Core

Thank you, this worked! On Monday, August 25, 2025 at 12:17:45 PM UTC-4 junaida...@gmail.com wrote:

Aug 25

Nick Lee, … jinhui pan5

Jul 7

FPGA prototyping: cannot detect sd card 2nd partition

I have same problem also. Please contact me if someone have solved this problem. I add CONFIG_MMC=y,

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FPGA prototyping: cannot detect sd card 2nd partition

I have same problem also. Please contact me if someone have solved this problem. I add CONFIG_MMC=y,

Jul 7

edward mulier, Tung Hoang2

Jul 1

Area of 16bit floating-point Gemmini

Table 3 of the below paper has MAC int8 and fp16 area https://arxiv.org/pdf/1811.01721 On Tue, Jul 1,

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Area of 16bit floating-point Gemmini

Table 3 of the below paper has MAC int8 and fp16 area https://arxiv.org/pdf/1811.01721 On Tue, Jul 1,

Jul 1

Jul 1

How to enable more than foure RoCC accelerators within one core?

Dear authors, I am a beginner with Chipyard, and I am curious about the RoCC extension. Here are some

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How to enable more than foure RoCC accelerators within one core?

Dear authors, I am a beginner with Chipyard, and I am curious about the RoCC extension. Here are some

Jul 1

Jul 1

Issues generating verilator waveforms .vcd files with chipyard

I have been making a medium boom processor using an existing config without alterations with the line

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Issues generating verilator waveforms .vcd files with chipyard

I have been making a medium boom processor using an existing config without alterations with the line

Jul 1

Jun 26

Login Issue on VCU118 Firemarshal Image – Password Not Accepted

After building the Firemarshal image for the VCU118 board according to the official tutorial, the

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Login Issue on VCU118 Firemarshal Image – Password Not Accepted

After building the Firemarshal image for the VCU118 board according to the official tutorial, the

Jun 26

Jun 11

Problem with Tilelink protocol handshake between Rocket Core and a MMIO device

I am trying to add a MMIO device to rocket-chip in chipyard and I want to use Tilelink interface.

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Problem with Tilelink protocol handshake between Rocket Core and a MMIO device

I am trying to add a MMIO device to rocket-chip in chipyard and I want to use Tilelink interface.

Jun 11

陳冠穎, Rhythm Lian2

Jun 6

Is there any possibility to run generated SoC on Xilinx Alveo U50 or U55c?

Hi, I also want to simulate Chipyard on U55C, have you solved this problem? Or can we communicate? 在

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Is there any possibility to run generated SoC on Xilinx Alveo U50 or U55c?

Hi, I also want to simulate Chipyard on U55C, have you solved this problem? Or can we communicate? 在

Jun 6

George Anagnostopoulos, Noah Limpert2

Jun 5

IP: Socket: Function Not Implemented

Hi George, did you ever resolve this issue? I am trying to do some communication between the host and

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IP: Socket: Function Not Implemented

Hi George, did you ever resolve this issue? I am trying to do some communication between the host and

Jun 5

Nure Tanjim, … yj Han3

Jun 4

Skipping Conda Initialization & Setting up RISCV Variable

You can try deleting the .conda-lock-env directory and then re-running the installation script. 在2025

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Skipping Conda Initialization & Setting up RISCV Variable

You can try deleting the .conda-lock-env directory and then re-running the installation script. 在2025

Jun 4

韩丰泽, … Jerry Zhao4

Jun 3

chipyard vcu118 prototype & linux boot continuously failed

Would you be able to PR the fix? On Tue, Jun 3, 2025 at 11:33 Amirmohammad Nazari <amirmohammad.

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chipyard vcu118 prototype & linux boot continuously failed

Would you be able to PR the fix? On Tue, Jun 3, 2025 at 11:33 Amirmohammad Nazari <amirmohammad.

Jun 3

Tynan McAuley, … Sriram R17

May 23

TileLink questions and NVDLA performance

I have doubt on the integration of the dbb interface , how the 512-bit data is handled from the dbb

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TileLink questions and NVDLA performance

I have doubt on the integration of the dbb interface , how the 512-bit data is handled from the dbb

May 23

May 23

Custom TileLink Topology & visibilityNode Handling for a Custom Tile (with Internal Custom Bus/Protocol) in Chipyard

Dear Chipyard Development Team Experts, I am a developer currently using Chipyard for an SoC design

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Custom TileLink Topology & visibilityNode Handling for a Custom Tile (with Internal Custom Bus/Protocol) in Chipyard

Dear Chipyard Development Team Experts, I am a developer currently using Chipyard for an SoC design

May 23

Kanishka Gunawardana

May 5

firtool: command not found error

Hii Can anyone help with this? [e19129@localhost chipyard]$ source env.sh (/home/e19129/chipyard/

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firtool: command not found error

Hii Can anyone help with this? [e19129@localhost chipyard]$ source env.sh (/home/e19129/chipyard/

May 5

alia hassan, … atharva nerkar3

Apr 20

Accelerator as MMIO Peripheral

Yes On Sun, 20 Apr, 2025, 1:31 pm M Mudassar Khan, <mudassa...@gmail.com> wrote: Sir would

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Accelerator as MMIO Peripheral

Yes On Sun, 20 Apr, 2025, 1:31 pm M Mudassar Khan, <mudassa...@gmail.com> wrote: Sir would

Apr 20

Frank Fan, … Matthew Fields4

Apr 8

AWS EC2 F1 instance is no longer supporrted for new users

Hi, we are offering this service under a company called PST. PST delivers bare metal access for AI,

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AWS EC2 F1 instance is no longer supporrted for new users

Hi, we are offering this service under a company called PST. PST delivers bare metal access for AI,

Apr 8

Zhitao Yang, Jerry Zhao2

Apr 8

Which version of Chipyard is recommended？

Please follow the latest docs - https://chipyard.readthedocs.io/en/latest/ This should direct you to

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Which version of Chipyard is recommended？

Please follow the latest docs - https://chipyard.readthedocs.io/en/latest/ This should direct you to

Apr 8

Su Hwan Hong, … Frank Fan6

Apr 8

Amazon AMI Not Found

Hi Abraham, I hope this message finds you well. I recently saw the update regarding the deprecation

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Amazon AMI Not Found

Hi Abraham, I hope this message finds you well. I recently saw the update regarding the deprecation

Apr 8

Apr 3

Getting continous "INFO:root" while setting up Chipyard repo

I am following this (https://chipyard.readthedocs.io/en/stable/Chipyard-Basics/Initial-Repo-Setup.

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Getting continous "INFO:root" while setting up Chipyard repo

I am following this (https://chipyard.readthedocs.io/en/stable/Chipyard-Basics/Initial-Repo-Setup.

Apr 3

Will Raulston, Jerry Zhao3

Apr 2

Trouble with resizing a smaller Scratchpad Memory

Hey Jerry, thanks for the reply. Actually, right after my initial post, I found this post ( I sent a

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Trouble with resizing a smaller Scratchpad Memory

Hey Jerry, thanks for the reply. Actually, right after my initial post, I found this post ( I sent a

Apr 2

Mar 31

Intergration of TCAM ip into chipyard as both an MMIO peripheral and a RoCC accelerator.

Can someone help me with the process that how should I proceed.

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Intergration of TCAM ip into chipyard as both an MMIO peripheral and a RoCC accelerator.

Can someone help me with the process that how should I proceed.

Mar 31

Mar 31

Facing a error 127 when run make in verilator

I tird installing firtool through cloning circt directory but failed to buit it. A error of llvm was

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Facing a error 127 when run make in verilator

I tird installing firtool through cloning circt directory but failed to buit it. A error of llvm was

Mar 31

Mar 30

How to make a custom instruction with a pipelined configuration?

I am trying to create a custom pipelined configuration such that it can be used to calculate a 2 by 2

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How to make a custom instruction with a pipelined configuration?

I am trying to create a custom pipelined configuration such that it can be used to calculate a 2 by 2

Mar 30

Kelly Xu, Jerry Zhao6

Mar 20

Connecting BOOM tile with SRAM/DRAM - RocketChip

Basically, yes. Instead of the memory modules provided, we want to connect our BoomTile to a custom

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Connecting BOOM tile with SRAM/DRAM - RocketChip

Basically, yes. Instead of the memory modules provided, we want to connect our BoomTile to a custom

Mar 20

Mar 19

Building with SDL2

I hope I am not getting ahead of my self here but I may have pinned down the issue. I noticed that

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Building with SDL2

I hope I am not getting ahead of my self here but I may have pinned down the issue. I noticed that

Mar 19

Mar 19

How to Enable HPMs in BOOM

Hi all, Following up from my previous post it seems that my issues lie with needing to enable HPMs in

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How to Enable HPMs in BOOM

Hi all, Following up from my previous post it seems that my issues lie with needing to enable HPMs in

Mar 19

Sanghyeon, Jerry Zhao2

Mar 18

How to send binary argument to binary file when simulating using verilator?

Generally, baremetal binaries do not see arguments, or have the capability to perform file IO, as

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How to send binary argument to binary file when simulating using verilator?

Generally, baremetal binaries do not see arguments, or have the capability to perform file IO, as

Mar 18

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