Portable EMG Data Logger
From Embedded Nirvana
This wiki page is for updating the project status of the Portable EMG Data Logger.
Contents |
Raw Idea
The idea is to come up with a open hardware and open software based Portable EMG Data Logger targeted for Medical Use. It will be based on ARM and will be built using open technologies.
It would be somewhat like this :
EMG Sensor ----> MCU & Peripherals ----> Analytics To SmartPhone/Tablet/PC/Mac
Block Diagram
This is very generic block diagram based on the raw idea. It would change as the project and the idea develops.
Micro Controller & Development/Evaluation Board
- ARM Cortex M4F
- STM32F4DISCOVERY will be used to develop the application.
Toolchain For STM32F4DISCOVERY
Note : Before setting up toolchain, it is recommended to update the system.
Summor ARM Toolchain is being used, to set up toolchain , follow these :
1) Make a directory for downloading the sources :
$ mkdir ~/stm32f4discovery $ cd ~/stm32f4discovery
2) Fetch the summon arm toolchain :
$ git clone https://github.com/esden/summon-arm-toolchain.git $ cd summon-arm-toolchain $ ./summon-arm-toolchain
Executing ./summon-arm-toolchain will start the configuration.
If everything goes well then the toolchain will configured and you can check the ~/sat folder in home which will contain :
arm-none-eabi bin include lib libexec share
~/sat/bin contains the ELF executable which are the used to compile the code written for the application.
To confirm that your toolchain is configured apart from above said ~/sat folder your script should give this as the output on the terminal before ending :
BUILD lib/stm32/f1
make[1]: Nothing to be done for `all'.
BUILD lib/stm32/f2
make[1]: Nothing to be done for `all'.
BUILD lib/stm32/f4
make[1]: Nothing to be done for `all'.
BUILD lib/lpc13xx
make[1]: Nothing to be done for `all'.
BUILD lib/lpc17xx
make[1]: Nothing to be done for `all'.
BUILD lib/lm3s
make[1]: Nothing to be done for `all'.
INSTALL headers
INSTALL libs
INSTALL ldscripts
INSTALL scripts
Cleaning up libopencm3-3596075ee0f189f8a95090c4fb5522844255a029
Possible Errors While Configuring Toolchain :
- If after executing the ./summon-arm-toolchain the script isn't able to fetch the NEWLIB then do following :
1) Download the NEWLIB tar in the sources and save it in sources directory :
ftp://sources.redhat.com/pub/newlib/newlib-1.19.0.tar.gz
2) Open : $vi summon-arm-toolchain and comment the 321 line.
This will skip NEWLIB fetching using the script, though the installation will be done by the script only by using the source you downloaded in step 1.
Now execute :
$./summon-arm-toolchain
- After resolving above error possibility is that one can get following error :
checking for objdir... .libs checking for the correct version of gmp.h... yes checking for the correct version of mpfr.h... no configure: error: Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+. Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify their locations. Source code for these libraries can be found at their respective hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also http://gcc.gnu.org/install/prerequisites.html for additional info. If you obtained GMP, MPFR and/or MPC from a vendor distribution package, make sure that you have installed both the libraries and the header files. They may be located in separate packages.
To get rid of this, do following assuming you are in summon-arm-toolchain directory :
1) Download these packages from here : http://www.multiprecision.org/index.php?prog=mpc&page=download 2) cd gcc-linaro-4.5-2011.02-0/ 3) tar -jxf ../mpfr-3.1.0.tar.bz2 4) mv -v mpfr-3.1.0 mpfr 5) tar -jxf ../gmp-5.0.2.tar.bz2 6) mv -v gmp-5.0.2 gmp 7) tar -zxf ../mpc-0.9.tar.gz 8) mv -v mpc-0.9 mpc
Now execute the script :
$./summon-arm-toolchain
- This error can also occur during the configuration :
checking for creal in -lm... yes
checking for __gmpz_init in -lgmp... yes
checking for MPFR... no
configure: error: libmpfr not found or uses a different ABI.
make[1]: *** [configure-mpc] Error 1
make[1]: Leaving directory
`/home/chetanpatil/LM3S9B96/stm32f4discovery_root/esden-summon-arm- toolchain-5f14832/build'
make: *** [all] Error 2
Do following :
1) sudo yum install ncurses-devel 2) sudo yum install mpfr-devel
Then run the script again:
$./summon-arm-toolchain
Code Repository And Bug Reporting
The code is hosted on github
Please report all your bug on github itself.
How Data Will Be Viewed On SmartPhone/Tablets/PC/Mac ?
We are planning to make use of GNU Health. GNU Health is a free Health and Hospital Information System with the following functionality :
- Electronic Medical Record (EMR)
- Hospital Information System (HIS)
- Health Information System
We would be opting for such solution instead of building one from scratch.
Time Line
This project came alive on 8th Feb 2012
| Part | Description | Status | Duration |
|---|---|---|---|
| Signal Conditioning | To capture the low signals from EMG sensor by providing a gain before giving it to the Micro controllers ADC pins. | PCB for same is ready. Testing is being conducted. | 1st March 2012 - Present |
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| Modular Programming | Module wise programming in order to create proper application. From capturing the data till storing or displaying the data in proper manner. | In Progress | 7th June 2012 |
Note : Strike out means that part is accomplished.
Licencing
Note : Under Development
GDB related code:GNU Public licence (GPL)
Rest of the code (like device driver, utilities, etc):Apache 2.0
Hardware Files : Creative Commons Attribution Share-Alike license CC
Links
Chetanpatil 23:45, 30 September 2012 (CDT)
