Bela & arduino

giuliomoro now everything works, I want to compile this project with hvcc; it compiled succesfully, but i don't receive messages from the slave device anymore, also it doesn't send the messages to the slave device. I am using the render.cpp from/better-i2c/scripts/hvresources/render.cpp . in the 'libpd version' i am sending a couple of messages from my pd patch to the receiver "bela_i2c" , and am receiving messages in pd with a receive object "bela_i2c_in". they are defined in the default_libpd_render.cpp from the better-i2c branch. (but i can't find any reference to these in the heavy version of the render.cpp ).. only thing i found is : // unlike libpd, no need here to bind the bela_digitalOut.. receivers
// but make sure you do something like [send receiverName @hv_param]
// when you want to send a message from Heavy to the wrapper. I figured i probably have to do something with this, but C++ is new to me. i'm able to understand code, and alter it a bit to do what i want, but if i'm writing /adding new code myself I don't know excactly what I am doing. Could you help me put this in the heavy version of the render.cpp?

getting there ... I rebased that branch on top of the current dev (here), and everything seems to be working ok, although it surely could be optimized a bit. Next step: heavy!

here is the updated Heavy render file: https://github.com/BelaPlatform/Bela/blob/better-i2c-rebased/scripts/hvresources/render.cpp

Note that you now have to send to [send bela_i2c @hv_param], as per the updated example: https://github.com/BelaPlatform/Bela/blob/better-i2c-rebased/examples/PureData/i2c/_main.pd

giuliomoro thanks a bunch! i will let you know when i tested it!

It seems like you are just copying files in from one branch to another. That is a recipe for disaster, as you find yourself in a situation where a file (e.g.: core/default_libpd_render.cpp) relies on the version of libraries/Gui/Gui.h that is available on both the dev and better-i2c-rebased branches. Similarly, the render.cpp file for heavy that you are using relies on I2cRt.h to be present in the include/ folder, as it is in the better-i2c-rebased branch. To try out a branch properly, you have to update all the codebase at the same time. This procedure is explained here.

giuliomoro Thanks, that did the job! i feel a bit stupid for not reading that myself to begin with the project now compiled to heavy succesfully; only one problem left; I think the Trill library isn't working correctly on this branch : the other project that i wanted to merge it with now doesn't want to build anymore, I get the error: In file libraries/Trill/Trill.cpp: use of undeclared identifier 'i2C_file'; did you mean 'i2cFile'? column: 33, line: 92 libraries/Trill/Trill.cpp:92:33: error: use of undeclared identifier 'i2C_file'; did you mean 'i2cFile'?
if(int writtenValue = (::write(i2C_file, buf, bytesToWrite)) != bytesToWrite)
^~~~~~~~
i2cFile
/root/Bela/include/I2c.h:27:6: note: 'i2cFile' declared here
int i2cFile = 0;

and 12 more errors similar to this on other lines. they all refer to "i2c_file".
(i tried altering the Trill.cpp file in my downloaded "better-i2c-rebased" folder on my pc accordingly, rezip it and update the board with the altered branch, but that didn't work, it even showed the exact same errors. probably not at all the way to do this but at least i wanted to give that a try before i did another post)

Yes it was broken. I fixed it now.

Thanks! the libpd project is building again with no errors. With heavy there still seem to be some issues: it doesnt want to accept the expression object from pd anymore; (in the master branch that compiled with no problems); root@bela:~# python2.7 ~/hvcc/hvcc.py ~/Bela/projects/MergedProjects/_main.pd -o /tmp/hvtmp -n bela -g c
1) Error pd2hv: BaseMath in "_main.pd/BaseMath" @ (x:-515, y:498): Don't know how to parse object "expr". Is it an object supported by Heavy? Is it an abstrac tion? Have the search paths been correctly configured?
2) Error pd2hv: BaseMath in "_main.pd/BaseMath" @ (x:-515, y:498): There was a n error while connecting two objects. Have all objects been correctly instantiat ed? Have all inlets and outlets been declared?
3) Error pd2hv: [comment text] in "_main.pd/BaseMath" @ (x:0, y:0): Connection made to non-existent inlet at [comment {u'text': 'null object placeholder (expr )'}]:0. also when i try to compile the project with the expression object removed, the compiler still quits with 'segmentation fault': (everything seems to run smooth untill compiling the render.cpp) echo 'Building render.cpp...'
Building render.cpp...
g++ -I/root/Bela/projects/Trill_HEAVY -I./include/legacy -I./include -I./build /pru/ -I./ -I/usr/xenomai/include/cobalt -I/usr/xenomai/include -march=armv7-a - mfpu=vfp3 -D_GNU_SOURCE -D_REENTRANT -fasynchronous-unwind-tables -D__COBALT__ - D__COBALT_WRAP__ -DXENOMAI_SKIN_posix -DXENOMAI_MAJOR=3 -O3 -march=armv7-a -mtun e=cortex-a8 -mfloat-abi=hard -mfpu=neon -ftree-vectorize -ffast-math -DNDEBUG -D BELA_USE_RTDM -I/root/Bela/resources/stretch/include -save-temps=obj -std=c++11 -Wall -c -fmessage-length=0 -U_FORTIFY_SOURCE -MMD -MP -MF"/root/Bela/projects/T rill_HEAVY/build/render.d" -o "/root/Bela/projects/Trill_HEAVY/build/render.o" " /root/Bela/projects/Trill_HEAVY/render.cpp"
/root/Bela/projects/Trill_HEAVY/render.cpp: In function 'void sendHook(HeavyCont extInterface*, const char*, uint32_t, const HvMessage*)':
/root/Bela/projects/Trill_HEAVY/render.cpp:410:9: warning: comparison between si gned and unsigned integer expressions [-Wsign-compare]
port < midi.size() && midi[port]->writeNoteOn(channel, pitch, velocity);
~~~~~^~~~~~~~~~~~~
/root/Bela/projects/Trill_HEAVY/render.cpp:420:9: warning: comparison between si gned and unsigned integer expressions [-Wsign-compare]
port < midi.size() && midi[port]->writeControlChange(channel, controller, va lue);
~~~~~^~~~~~~~~~~~~
/root/Bela/projects/Trill_HEAVY/render.cpp:428:9: warning: comparison between si gned and unsigned integer expressions [-Wsign-compare]
port < midi.size() && midi[port]->writeProgramChange(channel, program);
~~~~~^~~~~~~~~~~~~
/root/Bela/projects/Trill_HEAVY/render.cpp:437:9: warning: comparison between si gned and unsigned integer expressions [-Wsign-compare]
port < midi.size() && midi[port]->writePitchBend(channel, value);
~~~~~^~~~~~~~~~~~~
/root/Bela/projects/Trill_HEAVY/render.cpp:446:9: warning: comparison between si gned and unsigned integer expressions [-Wsign-compare]
port < midi.size() && midi[port]->writeChannelPressure(channel, pressure);
~~~~~^~~~~~~~~~~~~
/root/Bela/projects/Trill_HEAVY/render.cpp:456:9: warning: comparison between si gned and unsigned integer expressions [-Wsign-compare]
port < midi.size() && midi[port]->writePolyphonicKeyPressure(channel, pitch, pressure);
~~~~~^~~~~~~~~~~~~
/root/Bela/projects/Trill_HEAVY/render.cpp:464:9: warning: comparison between si gned and unsigned integer expressions [-Wsign-compare]
port < midi.size() && midi[port]->writeOutput(byte);
~~~~~^~~~~~~~~~~~~
/root/Bela/projects/Trill_HEAVY/render.cpp: In function 'bool setup(BelaContext* , void*)':
/root/Bela/projects/Trill_HEAVY/render.cpp:487:28: warning: comparison between s igned and unsigned integer expressions [-Wsign-compare]
for(unsigned int n = 0; n < touchSensor.numSensors(); ++n)
~~^~~~~~~~~~~~~~~~~~~~~~~~~~
``echo ' ...done'
...done
echo ' '

./resources/tools/detectlibraries.sh --project Trill_HEAVY
Extracting dependencies of library Midi
Extracting dependencies of library Scope
Extracting dependencies of library Trill
make -f Makefile.linkbela --no-print-directory /root/Bela/projects/Trill_HEAVY/T rill_HEAVY
echo 'Linking...'
Linking...
g++ -Llib/ -fno-pie -no-pie -pthread -o "/root/Bela/projects/Trill_HEAVY/Tri ll_HEAVY" build/core/FormatConvert.o build/core/OscillatorBank_routines.o build/ core/math_runfast.o build/core/ringbuffer.o build/core/Gpio.o build/core/I2c_Cod ec.o build/core/BelaContextFifo.o build/core/RTAudio.o build/core/PruBinary.o bu ild/core/RTAudioCommandLine.o build/core/AuxTaskNonRT.o build/core/JSONValue.o b uild/core/board_detect.o build/core/WSServer.o build/core/AuxiliaryTasks.o build /core/PRU.o build/core/DataFifo.o build/core/AuxTaskRT.o build/core/IirFilter.o build/core/GPIOcontrol.o build/core/Spi_Codec.o build/core/I2cRt.o build/core/I2 c.o build/core/BelaContextSplitter.o build/core/DigitalChannelManager.o build/co re/JSON.o ./build/core/default_main.o /root/Bela/projects/Trill_HEAVY/build/Hv ControlSlice.o /root/Bela/projects/Trill_HEAVY/build/HvControlVar.o /root/Bela/p rojects/Trill_HEAVY/build/HvLightPipe.o /root/Bela/projects/Trill_HEAVY/build/Hv Table.o /root/Bela/projects/Trill_HEAVY/build/HvMessageQueue.o /root/Bela/projec ts/Trill_HEAVY/build/HvControlPack.o /root/Bela/projects/Trill_HEAVY/build/HvCon trolCast.o /root/Bela/projects/Trill_HEAVY/build/HvControlSystem.o /root/Bela/pr ojects/Trill_HEAVY/build/HvMessage.o /root/Bela/projects/Trill_HEAVY/build/HvUti ls.o /root/Bela/projects/Trill_HEAVY/build/HvControlBinop.o /root/Bela/projects/ Trill_HEAVY/build/HvControlDelay.o /root/Bela/projects/Trill_HEAVY/build/HvContr olPrint.o /root/Bela/projects/Trill_HEAVY/build/HvMessagePool.o /root/Bela/proje cts/Trill_HEAVY/build/HvHeavy.o /root/Bela/projects/Trill_HEAVY/build/HeavyConte xt.o /root/Bela/projects/Trill_HEAVY/build/Heavy_bela.o /root/Bela/projects/Tril l_HEAVY/build/render.o libraries/Midi/build/Midi.o libraries/Midi/build/Midi_c.o libraries/Scope/build/Scope.o libraries/Trill/build/Trill.o -lasound -lseasoc ks -lNE10 -Wl,--no-as-needed -L/usr/xenomai/lib -lcobalt -lmodechk -lpthread -l rt -lprussdrv -lstdc++ -Wl,--no-as-needed -L/usr/xenomai/lib -lcobalt -lmodechk -lpthread -lrt -lasound -lseasocks -lNE10 -lmathneon -lmathneon
echo ' ...done'
...done
echo "Running /root/Bela/projects/Trill_HEAVY/Trill_HEAVY "
Running /root/Bela/projects/Trill_HEAVY/Trill_HEAVY
sync& cd /root/Bela/projects/Trill_HEAVY && /root/Bela/projects/Trill_HEAVY/Tril l_HEAVY
Segmentation fault
Makefile:564: recipe for target 'runonly' failed
make: *** [runonly] Error 139
make: Leaving directory '/root/Bela'

maybe something goes wrong here?
/root/Bela/projects/Trill_HEAVY/render.cpp: In function 'bool setup(BelaContext* , void*)':
/root/Bela/projects/Trill_HEAVY/render.cpp:487:28: warning: comparison between s igned and unsigned integer expressions [-Wsign-compare]
for(unsigned int n = 0; n < touchSensor.numSensors(); ++n)
~~^~~~~~~~~~~~~~~~~~~~~~~~~~

but I also noticed an error when updating the board; when updating through the IDE I see an error popping up. Don't even have the time to read or copy it well; but then it seems to update anyway. (the first project that I needed this branch for works fine, and also compiles in heavy with no problems whatsoever...)

so I tried updating with the command line to see what happens. Quits with following error:

Checking the board is up and running at root@192.168.6.2...done
Board found at root@192.168.6.2
Updating the Bela core code in root@192.168.6.2:/root/Bela
All the changes to the CORE files in the remote folder /root/Bela will be LOST. The content of these files/folders will be lost:
core include Makefile Makefile.libraries Makefile.linkbela examples Doxyfile scripts resources pru libraries
Your projects stored in /root/Bela/projects should be safe (and surely you have already backed them up somewhere safe, haven't you?).
Are you sure you want to continue? (y/N) y
Updating Bela core files to remote folder /root/Bela
Stopping Bela...done
Updating files...Updated files: 0 ...done
Scope
Extracting dependencies of library Scope
Midi
Extracting dependencies of library Midi
make: Entering directory '/root/Bela/resources/tools/bela-cape-btn'
gcc bela-cape-btn.c -o bela-cape-btn
make: Leaving directory '/root/Bela/resources/tools/bela-cape-btn'
make: Entering directory '/root/Bela/resources/tools/board_detect'
g++ "../../../core/GPIOcontrol.cpp" -c -I../../../include -o "build/GPIOcontrol.o" -std=c++11
g++ "../../../core/Spi_Codec.cpp" -c -I../../../include -o "build/Spi_Codec.o" -std=c++11
g++ "../../../core/I2c_Codec.cpp" -c -I../../../include -o "build/I2c_Codec.o" -std=c++11
g++ "../../../core/board_detect.cpp" -c -I../../../include -o "build/board_detect.o" -std=c++11
g++ "main.cpp" -c -I../../../include -o "build/main.o" -std=c++11
g++ build/GPIOcontrol.o build/Spi_Codec.o build/I2c_Codec.o build/board_detect.o build/main.o -o "board_detect" -std=c++11
build/I2c_Codec.o: In functionI2c_Codec::I2c_Codec(int, int, bool)':
I2c_Codec.cpp.text+0x66): undefined reference to I2c::initI2C_RW(int, int, int)'
I2c_Codec.cpp:(.text+0x7c): undefined reference toI2c::~I2c()'
build/I2c_Codec.o: In function I2c_Codec::writeRegister(unsigned int, unsigned char)':
I2c_Codec.cpp:(.text+0xfe6): undefined reference toI2c::writeRegisters(unsigned char, unsigned char, unsigned int)'
build/I2c_Codec.o: In function I2c_Codec::~I2c_Codec()':
I2c_Codec.cpp:(.text+0x113c): undefined reference toI2c::~I2c()'
build/I2c_Codec.o: In function I2c::I2c()':
I2c_Codec.cpp:(.text._ZN3I2cC2Ev[_ZN3I2cC5Ev]+0x38): undefined reference tovtable for I2c'
build/I2c_Codec.o.data.rel.ro+0x10): undefined reference to `typeinfo for I2c'
collect2: error: ld returned 1 exit status
Makefile:10: recipe for target 'board_detect' failed
make: Leaving directory '/root/Bela/resources/tools/board_detect'
make: ** [board_detect] Error 1

An error occurred.`

giuliomoro Thanks, yes that was the error i was getting while updating the board. it is fixed now. I dont have any objects named 'comment'; that error was due to the expr. object and heavy not accepting expr as an object. I was already using the hvcc from https://github.com/giuliomoro/hvcc , after the fix for the update_board it still gave me 'segmentation fault' but when i checked my custom render.cpp for heavy, i found a mistake in there; i got it out and everything now finally compiled as it should thanks again for your help!