Example dimmer project for running SimAVR (with an ATTINY85)

Projects made with PlatformIO
1

Hi,

Just made a project using PlatformIO that demonstrates a button-controlled dimmer implemented on the ATTINY85, and simulated using SimAVR: https://github.com/RobustoFramework/ATTINY_dimmer/tree/main

It was quite difficult to make it work with the dependencies, got quite misled into creating all kinds of python scripts, and misunderstanding the not overly easy-to-understand documentation, but I think I’ve gotten the hang of it now.

Only tried on MacOS, will make a try on Docker/Linux in august, I think.
BTW, I haven’t gotten simavr to build on windows yet, seems to be pretty difficult, at least to me, certainly not my forte.

2

I’ve done that some time ago and automated it with Github Actions:

https://github.com/maxgerhardt/simavr/tree/combined_fixes_and_ci
https://github.com/maxgerhardt/simavr/blob/combined_fixes_and_ci/.github/workflows/build.yml

Binaries:

https://github.com/maxgerhardt/simavr/releases/tag/pio-release

3

Thanks!
For some reason I have totally missed the release page of the project.
Facepalming hard over here, thanks again.

4

I’ve updated the CI again, the branch with the custom fixes for GDB is sadly broken but the one “verbatim” one compiles (with tiny fix) fine for all OSes:

https://github.com/maxgerhardt/simavr/actions/runs/9536362328

In fact, simavr debugging still works fine with that version.

https://github.com/maxgerhardt/pio-simavr-testing

That’s now also PRed at

1 Like
6

(i realized that that was your branch, so perhaps I wasn’t that off after all then. :slight_smile: )
I tried with ghd pio-release 2 and that didn’t build, though:

gcc -o .pio\build\client_windows\program.exe .pio\build\client_windows\client\client.o -L.pio\build\client_windows -LC:\Users\Nickl\dev-deps\tool-simavr\lib -Wl,--start-group -lsimavr -lelf -Wl,--end-group
collect2.exe: error: ld returned 1 exit status
*** [.pio\build\client_windows\program.exe] Error 1
7

Ah but it does compile on the commandline for me on Windows. Used compiler GCC 14.1.0 from here, SDL2 MinGW dev libraries from here, libelf from here and command

gcc -o client.exe -D "FIRMWARE_PATH=\"firmware.elf\""  -I "C:\Users\Max Gerhardt\Downloads\Windows.64-bit\include" -I "C:\Users\Max Gerhardt\Downloads\SDL2-devel-2.30.3-mingw\SDL2-2.30.3\x86_64-w64-mingw32\include" -L "C:\Users\Max Gerhardt\Downloads\SDL2-devel-2.30.3-mingw\SDL2-2.30.3\x86_64-w64-mingw32\lib" -L "C:\Users\Max Gerhardt\Downloads\Windows.64-bit\lib" -L "C:\Users\Max Gerhardt\Downloads\mingw-w64-x86_64-libelf-0.8.13-7-any.pkg.tar\mingw-w64-x86_64-libelf-0.8.13-7-any.pkg\mingw64\lib" client.c -lsimavr -lelf -lmingw32 -lSDL2main -lSDL2 -lws2_32

With 2 tiny source code fixed in client.c

#waning "This is currently only tested on a Mac, dude." --> #warning "This is currently only tested on a Mac, dude."
int main() ---> int main(int argc, char** argv)

Plus copying in the SDL2.dll and the firmware.elf in the same folder as the generated client.exe, it does run.

image
image1191×585 39.4 KB

Not sure what it does, though.

8

It is a one button dimmer. If you hold down a button, it will fade up and down and if you short-click it will turn on and off (se the README.md)

Hm, the fixes (#waning?) and .dll didn’t help, seems to stop at the linker.
This was what happened when I tried to build the library directly myself (notably with gcc 13.2.0, but that shouldn’t be a problem, also you have some 32bit params):

PS C:\Users\Nickl\Projects\I2C_dimmer> pio run -t exec -e client_windows -vvv
Processing client_windows (platform: native; build_flags: -D FIRMWARE_PATH=\"C:\Users\Nickl\Projects\I2C_dimmer\.pio\build\client_windows\firmware.elf\", -IC:/Users/Nickl/dev-deps/tool-simavr/include, -LC:/Users/Nickl/dev-deps/tool-simavr/lib, -IC:/msys64/mingw64/include/, -LC:/msys64/mingw64/lib/, -lSDL2, -lSDL2main, -lsimavr, -lelf, --verbose; build_src_filter: +<../client/client.*>, -<main.*>, -<../test/*.*>; platform_packages: platformio/tool-simavr, platformio/toolchain-atmelavr; upload_speed: 115200)
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
PACKAGES: 
 - tool-simavr @ 1.10700.210831 (1.7.0)
 - toolchain-atmelavr @ 3.70300.220127 (7.3.0)
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 0 compatible libraries
Scanning dependencies...
No dependencies
Building in release mode
gcc -o .pio\build\client_windows\client\client.o -c --verbose -DPLATFORMIO=60115 -DFIRMWARE_PATH=\"C:UsersNicklProjectsI2C_dimmer.piobuildclient_windowsfirmware.elf\" -Isrc -IC:\Users\Nickl\dev-deps\tool-simavr\include -IC:\msys64\mingw64\include client\client.c
Using built-in specs.
COLLECT_GCC=gcc
Target: x86_64-w64-mingw32
Configured with: ../gcc-13.2.0/configure --prefix=/ucrt64 --with-local-prefix=/ucrt64/local --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --with-native-system-header-dir=/ucrt64/include --libexecdir=/ucrt64/lib --enable-bootstrap --enable-checking=release --with-arch=nocona --with-tune=generic --enable-languages=c,lto,c++,fortran,ada,objc,obj-c++,jit --enable-shared --enable-static --enable-libatomic --enable-threads=posix --enable-graphite --enable-fully-dynamic-string --enable-libstdcxx-filesystem-ts --enable-libstdcxx-time --disable-libstdcxx-pch --enable-lto --enable-libgomp --disable-libssp --disable-multilib --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-libiconv --with-system-zlib --with-gmp=/ucrt64 --with-mpfr=/ucrt64 --with-mpc=/ucrt64 --with-isl=/ucrt64 --with-pkgversion='Rev6, Built by MSYS2 project' --with-bugurl=https://github.com/msys2/MINGW-packages/issues --with-gnu-as --with-gnu-ld --disable-libstdcxx-debug --enable-plugin --with-boot-ldflags=-static-libstdc++ --with-stage1-ldflags=-static-libstdc++
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.2.0 (Rev6, Built by MSYS2 project)
COLLECT_GCC_OPTIONS='-o' '.pio\build\client_windows\client\client.o' '-c' '-v' '-D' 'PLATFORMIO=60115' '-D' 'FIRMWARE_PATH="C:UsersNicklProjectsI2C_dimmer.piobuildclient_windowsfirmware.elf"' '-I' 'src' '-I' 'C:\Users\Nickl\dev-deps\tool-simavr\include' '-I' 'C:\msys64\mingw64\include' '-mtune=generic' '-march=nocona' '-dumpdir' '.pio\build\client_windows\client\'
 C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/cc1.exe -quiet -v -I src -I C:\Users\Nickl\dev-deps\tool-simavr\include -I C:\msys64\mingw64\include -iprefix C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/ -D_REENTRANT -D PLATFORMIO=60115 -D FIRMWARE_PATH="C:UsersNicklProjectsI2C_dimmer.piobuildclient_windowsfirmware.elf" client\client.c -quiet -dumpdir .pio\build\client_windows\client\ -dumpbase client.c -dumpbase-ext .c -mtune=generic -march=nocona -version -o C:\Users\Nickl\AppData\Local\Temp\cc5AZ0oh.s
GNU C17 (Rev6, Built by MSYS2 project) version 13.2.0 (x86_64-w64-mingw32)
        compiled by GNU C version 13.2.0, GMP version 6.3.0, MPFR version 4.2.1, MPC version 1.3.1, isl version isl-0.26-GMP

GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/include"
ignoring duplicate directory "C:/msys64/ucrt64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/13.2.0/include"
ignoring nonexistent directory "D:/a/msys64/ucrt64/include"
ignoring nonexistent directory "/ucrt64/include"
ignoring duplicate directory "C:/msys64/ucrt64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/13.2.0/include-fixed"
ignoring nonexistent directory "C:/msys64/ucrt64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/include"
ignoring nonexistent directory "D:/a/msys64/ucrt64/include"
#include "..." search starts here:
#include <...> search starts here:
 src
 C:\Users\Nickl\dev-deps\tool-simavr\include
 C:\msys64\mingw64\include
 C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/include
 C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../include
 C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/include-fixed
End of search list.
Compiler executable checksum: 6bc5f38fc21a55e2f492a9e22ec8936c
client\client.c:17:2: warning: #warning "This is currently only tested on a Mac, dude." [-Wcpp]
   17 | #warning "This is currently only tested on a Mac, dude."
      |  ^~~~~~~
COLLECT_GCC_OPTIONS='-o' '.pio\build\client_windows\client\client.o' '-c' '-v' '-D' 'PLATFORMIO=60115' '-D' 'FIRMWARE_PATH="C:UsersNicklProjectsI2C_dimmer.piobuildclient_windowsfirmware.elf"' '-I' 'src' '-I' 'C:\Users\Nickl\dev-deps\tool-simavr\include' '-I' 'C:\msys64\mingw64\include' '-mtune=generic' '-march=nocona' '-dumpdir' '.pio\build\client_windows\client\'
 C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/bin/as.exe -v -I src -I C:\Users\Nickl\dev-deps\tool-simavr\include -I C:\msys64\mingw64\include -o .pio\build\client_windows\client\client.o C:\Users\Nickl\AppData\Local\Temp\cc5AZ0oh.s
COMPILER_PATH=C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/;C:/msys64/ucrt64/bin/../lib/gcc/;C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/bin/
LIBRARY_PATH=C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/;C:/msys64/ucrt64/bin/../lib/gcc/;C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/lib/../lib/;C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../lib/;C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../../x86_64-w64-mingw32/lib/;C:/msys64/ucrt64/bin/../lib/gcc/x86_64-w64-mingw32/13.2.0/../../../
COLLECT_GCC_OPTIONS='-o' '.pio\build\client_windows\client\client.o' '-c' '-v' '-D' 'PLATFORMIO=60115' '-D' 'FIRMWARE_PATH="C:UsersNicklProjectsI2C_dimmer.piobuildclient_windowsfirmware.elf"' '-I' 'src' '-I' 'C:\Users\Nickl\dev-deps\tool-simavr\include' '-I' 'C:\msys64\mingw64\include' '-mtune=generic' '-march=nocona' '-dumpdir' '.pio\build\client_windows\client\client.'   
gcc -o .pio\build\client_windows\program.exe .pio\build\client_windows\client\client.o -L.pio\build\client_windows -LC:\Users\Nickl\dev-deps\tool-simavr\lib -LC:\msys64\mingw64\lib -Wl,--start-group -lSDL2 -lSDL2main -lsimavr -lelf -Wl,--end-group
collect2.exe: error: ld returned 5 exit status
*** [.pio\build\client_windows\program.exe] Error 1
9

Mhm. There isn’t any actual error message. The linker just exits (or crashes?) with error code 5.

I added the GCC from as referenced winlibs.com, yours seems to be in that msys64/ucrt64 MSys2 environment, I don’t know if you can just call into that compiler from your regular Windows environment instead of from a ucrt64 shell. (And also I would use MinGW64 instead of ucrt64).

Plus you’re missing a few of the linker options

1 Like
10

The -lws2_32 and -lws2_32 options was the solution!
Thanks for all your help!

(much too fast on my new computer however, added a note on that)