My complete design will be digital-on-top but I also have analog components that I want OpenLane to route together with the digital parts. Can anyone provide me with an outline of how to do this please?

I am trying to run GL simulation on the openram testchip and facing the X propagation for the clock and reset on the entire chip. The top waveform view is from the openram test and the bottom waveform view is the

io_ports

test from the fresh caravel_user_project. The

pll_clk

from caravel clocking is getting X which then causes the entire chip to get X. I have already diff between the caravel GL netlist from the caravel_user_project and the openram testchip design directory, both are identical. Has anybody else faced similar issues when doing GL simulations of their designs?

Is it possible to do MEMS design with the Sky130 PDK and Magic/Klayout? Looking at the fact that only regular shapes are allowed in both these tools, I think that the answer is going to be no.

I'm trying the sky130 support in OpenRAM, using the example config

./compiler/example_configs/riscv_sky130_1kbyte_1rw1r.py

(PS: the 1r1w variants don't work)

magic

segfaults during execution of

run_ext.sh

and therefore no spice file is generated:

Extracting sram_1rw1r0w_32_256_sky130 into sram_1rw1r0w_32_256_sky130.ext:
Total of 5 warnings.
Finished extract
./run_ext.sh: line 38: 21392 Segmentation fault: 11  /usr/local/bin/magic -dnull -noconsole  <<EOF

I'm trying to debug that, but I'm also getting some error messages which I don't know if they should be of any concern or not. For example:

Error:  Asymmetric device with multiple terminals!

Hi everyone. According to the file caravel_user_project_analog/xschem/analog_wrapper_tb.spice. I can do simulation with the wrapper. Is there any method to run the simulation with pad?

Hi, any idea why these come -

Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read
Cell sky130_fd_sc_hd__clkbuf_1 couldn't be read

Thanks

Can you view a

.lef

file with magic ?

Has anyone here looked at the SRAM22 ram compiler ? Or better is anyone here in the team working on it ? I have some questions 😁 Starting with : How was the word line driver dimensionned ? It seems gigantic 😁 Like it's the same width as the whole bitcell array ...

Hi, I need help, I'm trying to install OpenRoad, locally on VM, Ubuntu 22.04, allocating 80gb storage and 8gb memory with 8 core CPU using, https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/docs/user/Build.md docs. after

./etc/Build.sh

terminal reponed with Errors. openroad_build.log ,

[INFO] Using 8 threads.
-- The CXX compiler identification is GNU 11.4.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- OpenROAD version: v2.0-19085-g46f617c56
-- System name: Linux
-- Compiler: GNU 11.4.0
-- Build type: RELEASE
-- Install prefix: /usr/local
-- C++ Standard: 17
-- C++ Standard Required: ON
-- C++ Extensions: OFF
-- The C compiler identification is GNU 11.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Performing Test C_COMPILER_SUPPORTS__-Wall
-- Performing Test C_COMPILER_SUPPORTS__-Wall - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wall
-- Performing Test CXX_COMPILER_SUPPORTS__-Wall - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-array-bounds
-- Performing Test C_COMPILER_SUPPORTS__-Wno-array-bounds - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-array-bounds
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-array-bounds - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-nonnull
-- Performing Test C_COMPILER_SUPPORTS__-Wno-nonnull - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-nonnull
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-nonnull - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-maybe-uninitialized
-- Performing Test C_COMPILER_SUPPORTS__-Wno-maybe-uninitialized - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-maybe-uninitialized
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-maybe-uninitialized - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-format-overflow
-- Performing Test C_COMPILER_SUPPORTS__-Wno-format-overflow - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-format-overflow
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-format-overflow - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-unused-variable
-- Performing Test C_COMPILER_SUPPORTS__-Wno-unused-variable - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-unused-variable
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-unused-variable - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-unused-function
-- Performing Test C_COMPILER_SUPPORTS__-Wno-unused-function - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-unused-function
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-unused-function - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-write-strings
-- Performing Test C_COMPILER_SUPPORTS__-Wno-write-strings - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-write-strings
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-write-strings - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-sign-compare
-- Performing Test C_COMPILER_SUPPORTS__-Wno-sign-compare - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-sign-compare
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-sign-compare - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-deprecated
-- Performing Test C_COMPILER_SUPPORTS__-Wno-deprecated - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-deprecated
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-deprecated - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-c++11-narrowing
-- Performing Test C_COMPILER_SUPPORTS__-Wno-c++11-narrowing - Failed
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-c++11-narrowing
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-c++11-narrowing - Failed
-- Performing Test C_COMPILER_SUPPORTS__-Wno-register
-- Performing Test C_COMPILER_SUPPORTS__-Wno-register - Failed
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-register
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-register - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-format
-- Performing Test C_COMPILER_SUPPORTS__-Wno-format - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-format
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-format - Success
-- Performing Test C_COMPILER_SUPPORTS__-Wno-reserved-user-defined-literal
-- Performing Test C_COMPILER_SUPPORTS__-Wno-reserved-user-defined-literal - Failed
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-reserved-user-defined-literal
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-reserved-user-defined-literal - Failed
-- Performing Test C_COMPILER_SUPPORTS__-fpermissive
-- Performing Test C_COMPILER_SUPPORTS__-fpermissive - Failed
-- Performing Test CXX_COMPILER_SUPPORTS__-fpermissive
-- Performing Test CXX_COMPILER_SUPPORTS__-fpermissive - Success
-- Performing Test C_COMPILER_SUPPORTS__-x
-- Performing Test C_COMPILER_SUPPORTS__-x - Failed
-- Performing Test CXX_COMPILER_SUPPORTS__-x
-- Performing Test CXX_COMPILER_SUPPORTS__-x - Failed
-- Performing Test C_COMPILER_SUPPORTS__c++
-- Performing Test C_COMPILER_SUPPORTS__c++ - Failed
-- Performing Test CXX_COMPILER_SUPPORTS__c++
-- Performing Test CXX_COMPILER_SUPPORTS__c++ - Failed
-- Performing Test C_COMPILER_SUPPORTS__-Wno-unused-but-set-variable
-- Performing Test C_COMPILER_SUPPORTS__-Wno-unused-but-set-variable - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-unused-but-set-variable
-- Performing Test CXX_COMPILER_SUPPORTS__-Wno-unused-but-set-variable - Success
-- Performing Test C_COMPILER_SUPPORTS__-std=c++17
-- Performing Test C_COMPILER_SUPPORTS__-std=c++17 - Failed
-- Performing Test CXX_COMPILER_SUPPORTS__-std=c++17
-- Performing Test CXX_COMPILER_SUPPORTS__-std=c++17 - Success
-- Performing Test C_COMPILER_SUPPORTS__-fno-exceptions
-- Performing Test C_COMPILER_SUPPORTS__-fno-exceptions - Success
-- Performing Test CXX_COMPILER_SUPPORTS__-fno-exceptions
-- Performing Test CXX_COMPILER_SUPPORTS__-fno-exceptions - Success
-- Found Python3: /usr/bin/python3.10 (found version "3.10.12") found components: Interpreter 
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- TCL library: /usr/lib/x86_64-linux-gnu/libtcl.so
-- TCL header: /usr/include/tcl/tcl.h
-- TCL readline library: /usr/lib/x86_64-linux-gnu/libtclreadline.so
-- TCL readline header: /usr/include/x86_64-linux-gnu
-- Found SWIG: /home/renps/.local/bin/swig (found suitable version "4.1.0", minimum required is "4.0")  
-- Using SWIG >= 4.1.0 -flatstaticmethod flag for python
-- Found Boost: /home/renps/.local/lib/cmake/Boost-1.80.0/BoostConfig.cmake (found version "1.80.0")  
-- boost: 1.80.0
-- Found GTest: /home/renps/.local/lib/cmake/GTest/GTestConfig.cmake (found version "1.13.0")  
-- GTest: 1.13.0
-- Found Python3: /usr/include/python3.10 (found version "3.10.12") found components: Development Development.Module Development.Embed 
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11") 
-- spdlog: 1.15.0
-- Found BISON: /usr/bin/bison (found version "3.8.2") 
-- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) 
-- STA version: 2.6.0
-- STA git sha: 6e95d93a44f7c46bb572933f5e2f8a624135820b
-- System name: Linux
-- Compiler: GNU 11.4.0
-- Build type: RELEASE
-- Build CXX_FLAGS: -O3 -DNDEBUG
-- Install prefix: /usr/local
-- Found FLEX: /usr/bin/flex (found version "2.6.4") 
-- TCL library: /usr/lib/x86_64-linux-gnu/libtcl.so
-- TCL header: /usr/include/tcl/tcl.h
-- TCL readline library: /usr/lib/x86_64-linux-gnu/libtclreadline.so
-- TCL readline header: /usr/include/x86_64-linux-gnu/tclreadline.h
CMake Warning (dev) at src/sta/CMakeLists.txt:383 (find_package):
  Policy CMP0074 is not set: find_package uses <PackageName>_ROOT variables.
  Run "cmake --help-policy CMP0074" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.

  CMake variable Eigen3_ROOT is set to:

    /home/renps/.local

  For compatibility, CMake is ignoring the variable.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Error at src/sta/CMakeLists.txt:383 (find_package):
  By not providing "FindEigen3.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Eigen3", but
  CMake did not find one.

  Could not find a package configuration file provided by "Eigen3" with any
  of the following names:

    Eigen3Config.cmake
    eigen3-config.cmake

  Add the installation prefix of "Eigen3" to CMAKE_PREFIX_PATH or set
  "Eigen3_DIR" to a directory containing one of the above files.  If "Eigen3"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!
See also "/home/renps/OpenROAD/build/CMakeFiles/CMakeOutput.log".
See also "/home/renps/OpenROAD/build/CMakeFiles/CMakeError.log".

Hello everyone, I recently hardened several macros in my design, allowing up to metal layer 5 (met5) for routing and using vertical met4 stripes for the power connection. Afterward, I integrated these macros into a top module and added a power ring using met4 and met5 layers. This top module was then integrated into the

user_project_wrapper

. I'm wondering if this approach might present any issues because I am using a ring with met5 and mt4 in my topmodule. Specifically, I encountered a situation where I had to set

"RUN_IRDROP_REPORT": false

to avoid the following warning when integrating my top module in the user_project_wrapper: >

[WARNING PSM-0038] Unconnected PDN node on net vccd1 at location (1426.418um, 1542.240um).

Upon reviewing the design, I noticed that vias have been added to establish the necessary connections. Does anyone have insights or suggestions on addressing this approach is ok?