A few days ago I started working with Git Hub and uploading my recent projects to it.
Right now, I’m working hardly on my RF24SH Protocol which is a Protocol to NRF24L01+ (wifi module) that aims to create a network of nodes. The difference from Maniacbug RF24Network library is you don’t have to distribute Channels/ID/Parents by yourself. There is a Protocol when a new node connects to the network it will communicate and discover who he can talk to, and after that this new node will ask for configuration to master station, and master station will pass a set of configurations to id, distributing Channels/ID/Parents. So it is easier to beginners to use it and maybe it is easier to put this in some kind of product that you want to sell. (If you do this, it will be nice to hear from you).
There is a lot of work to be done on Protocol, but the library already has working examples. The RF24SH Page provides more information, if you still have questions, please let me know.
Other project that I’m working on is Pocket ImAT – Pocket Image Analysis Tools, which is a Program that (for now) provides you ways to measure image objects. For example, if you’re working with microscopes images, and have a lot of objects on your image with a scale, you can define a scale and draw lines inside objects and the program can save this for you. This project begin when a friend told me that he needed this program, because the one that they are using in his lab was too old and outdated.
But going back to Git Hub… Matheus (X-warrior) Bratfisch Git Hub
If you have any question, suggestion or anything, drop me a line.
Best Regards,
Matheus
If you don’t want to use Arduino IDE (Or Teensy IDE? 
to programming and uploading your code to Teensy 3.0 you can use Makefiles.
The last IDE version can be found on PJRC Forum . As he said in the Beta 10 version, there is an Makefile example on “arduino-1.0.3\hardware/teensy/cores/teensy3” but to use it you need to add the arm binaries to your system path. To do this, open your command prompt. Start – execute – cmd.
And then type:
PATH = %PATH%;C:\CAMINHO_PARA_O_ARDUINO\arduino-1.0.3\hardware\tools\arm-none-eabi\bin
[If you don’t want to know the modifications that I did, just jump to the end where you can find a resume]
To guarantee that I will not screw everything, I did a copy of “arduino-1.0.3\hardware/teensy/cores/teensy3” and did my modifications on it. I executed:
cs-make.exe
Receveid this error message:
C:\CAMINHO_PARA_O_ARDUINO\arduino-1.0.3\Projects\Example_not_working>cs-make.exe
C:/Users/X-warrior/Desktop/tools/arm-none-eabi/bin/arm-none-eabi-gcc -Wall -g -Os -mcpu=cortex-m4 -mthumb -nostdlib -MMD -DF_CPU=48000000 -DUSB_SERIAL -DLAYOUT_US_ENGLISH -I. -c -o analog.o analog.c
process_begin: CreateProcess(NULL, C:/Users/X-warrior/Desktop/tools/arm-none-eabi/bin/arm-none-eabi-gcc -Wall -g -Os -mcpu=cortex-m4 -mthumb -nostdlib -MMD -DF_CPU=48000000 -DUSB_SERIAL -DLAYOUT_US_ENGLISH -I. -c -o analog.o analog.c, …) failed.
make (e=2): The system cannot find the file specified.
cs-make.exe: *** [analog.o] Error 2
Checking the Makefile I decided to change some configs and used FULL PATH for it.
TOOLSPATH = C:\CAMINHO_PARA_O_ARDUINO\arduino-1.0.3\hardware\tools
COMPILERPATH = C:\CAMINHO_PARA_O_ARDUINO\arduino-1.0.3\hardware\tools\arm-none-eabi\bin
The error received was the same, so checking the code again I saw the “abspath” and thought that maybe the problem was this, since I changed my folder location. So I removed all “$(abspath” remember that it has a parenthesis that closes the command. So for example:
$(abspath $(COMPILERPATH)) will be $(COMPILERPATH)
Trying to get it working again with cs-make, it started compiling it, but on the end I received this error:
C:\Users\X-warrior\Desktop\arduino-1.0.3\hardware\tools\arm-none-eabi\bin/arm-none-eabi-objcopy -O ihex -R .eeprom main.elf main.hex
C:\Users\X-warrior\Desktop\arduino-1.0.3\hardware\tools/teensy_post_compile -file=main -path= -tools=C:\Users\X-warrior\Desktop\arduino-1.0.3\hardware\tools
Opening Teensy Loader…
Teensy Loader could not find the file main
cs-make.exe: *** [main.hex] Error 1
Triple checking the Makefile I found “path=$(shell pwd)” and I didn’t remember this pwm command on windows so I tried to execute it and it didn’t work. So I changed it to “path=$(shell echo %cd%)”. Before I start compiling again I decide to clean directory using cs-make clean
I received the following errors:
C:\Users\X-warrior\Desktop\arduino-1.0.3\Projects\Example_not_working>cs-make.exe clean
rm -f *.o *.d main.elf main.hex
process_begin: CreateProcess(NULL, rm -f *.o *.d main.elf main.hex, …) failed.
make (e=2): The system cannot find the file specified.
cs-make.exe: *** [clean] Error 2
And then I noticed that it was calling rm -f which isn’t a windows command too. I changed the rm command to:
del *.o
del *.d
del $(TARGET).elf
del $(TARGET).hex
With this I managed to clean the files and tried to compile again, and… IT WORKS! I did a few tests using main.cpp that was being compiled and uploaded to my Teensy 3. Anyways to work with all that files wasn’t attractive so I decided to go a little further and do some cleaning. So inside my “Project” folder I copied all files excluding Makefile and main.cpp to my new folder inside my project “teensy/”. This way I can compile it without all that files on my working folder. I needed to do a few more changes on Makefile as follow:
C_FILES := $(wildcard *.c) \
$(wildcard $(addprefix teensy/, *.c)) \
$(wildcard $(addprefix teensy/util, *.c)) \
$(wildcard $(addprefix teensy/avr, *.c))
CPP_FILES := $(wildcard *.cpp) \
$(wildcard $(addprefix teensy/, *.cpp)) \
$(wildcard $(addprefix teensy/util, *.cpp)) \
$(wildcard $(addprefix teensy/avr, *.cpp))
OBJS := $(C_FILES:.c=.o) $(CPP_FILES:.cpp=.o)
Linker configuration to:
LDFLAGS = -Os -Wl,–gc-sections -mcpu=cortex-m4 -mthumb -Tteensy/mk20dx128.ld
And to keep it consistent:
$(TARGET).elf: $(OBJS) teensy/mk20dx128.ld
$(CC) $(LDFLAGS) -o $@ $(OBJS)
And then I found this error:
teensy/keylayouts.c:1: fatal error: avr/pgmspace.h: No such file or directory
compilation terminated.
cs-make: *** [teensy/keylayouts.o] Error 1
So I updated the CPPFLAGS to:
CPPFLAGS = -Wall -g -Os -mcpu=cortex-m4 -mthumb -nostdlib -MMD $(OPTIONS) -I. -Iteensy/
And also remembered that the clean should be updated too.
clean:
del *.o
del *.d
del $(TARGET).elf
del $(TARGET).hex
del $(CURRENT_PATH)\teensy\*.o
del $(CURRENT_PATH)\teensy\*.d
And add this on the begin of “Configurations that shouldn’t be updated”
CURRENT_PATH=$(shell echo %cd%)
With all this I managed to get the Makefile working on Windows compiling and uploading for Teensy 3.0
Summary:
You must update TOOLSPATH , COMPILERPATH and use your FULL PATH
Then create a folder “My_Project”
Create another folder inside your project called “teensy” (My_Project/teensy/)
Copy “arduino-1.0.3\hardware/teensy/cores/teensy3/” to “My_Project/teensy/” (subdir too, but not the Makefile)
Add the Makefile that you can download on the end of this post inside “My_Project”
Copy “Meu_Projeto/teensy/main.cpp” too “Meu_Projeto/main.cpp”
Programm inside main.cpp
Compile and upload with cs-make.exe
Matheus
]]>