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diff --git a/source/unix-toolchain.rst b/source/unix-toolchain.rst index d49b642..a173146 100644 --- a/source/unix-toolchain.rst +++ b/source/unix-toolchain.rst @@ -7,20 +7,21 @@ =========================== This is a tutorial for using the Maple with a standard Unix toolchain -(make, gcc, etc.). It's not necessary to do this in order to program -the Maple; you can always :ref:`install the Maple IDE +(``make``, ``gcc``, etc.). It's not necessary to do this in order to +program the Maple; you can always :ref:`install the Maple IDE <maple-ide-install>` instead. You'll need a Maple board, a Mini-B USB cable, a functional computer, -and root access to that computer. This guide assumes you've had -success with the IDE on your machine and that you are fairly -comfortable with the Unix command line; some previous experience with -editing your shell startup script (.bashrc, .tcshrc, etc.) and using -`make <http://www.gnu.org/software/make/>`_ is recommended. For -generic installation/setup issues, the :ref:`IDE installation -<maple-ide-install>` and :ref:`troubleshooting` pages may be -helpful. If all else fails, try our `forum`_, or `contact us -directly`_\ ! +and root (or Administrator) access to that computer. This guide +assumes you've had success with the IDE on your machine and that you +are fairly comfortable with the Unix command line. Some previous +experience with editing your shell startup script (.bashrc, .tcshrc, +etc.) and using `GCC <http://gcc.gnu.org/>`_ and `make +<http://www.gnu.org/software/make/>`_ is recommended. + +For generic installation and setup issues, see the :ref:`IDE +installation <maple-ide-install>` and :ref:`troubleshooting` pages. If +all else fails, try our `forum`_, or `contact us directly`_\ ! We currently have instructions for 32- and 64-bit Linux and OS X Snow Leopard. If you're on another Unix platform, Windows, or an earlier @@ -54,36 +55,40 @@ First I'll give the commands to run, then explain:: $ sudo aptitude install build-essential git-core wget screen dfu-util \ openocd python python-serial -You'll want to install a bunch of developer "basics" like -:command:`make`, :command:`tar`, etc. A good catch-all for these -tools is the "build-essential" meta-package on most Debian platforms: -installing this fake package will pull in dozens of useful tools -without bogging your system down too much. ``git-core`` is the name of -the git package; `Git <http://git-scm.com/>`_ is a distributed code -versioning system we use to track changes in our source -code. :command:`wget` is a simple tool to download files over http -from the command line, and is optional (you could pull in the required -downloads using a browser). :command:`screen` is a really cool virtual -terminal program; in the context of Maple, we use it to connect to -serial port devices. - -:command:`dfu-util` is a tool from the `OpenMoko`_ project that we use -to upload programs to the Maple over USB. +You'll want to install a bunch of developer "basics" like ``make``, +``tar``, etc. A good catch-all for these tools is the +``build-essential`` meta-package on most Debian platforms: installing +this fake package will pull in dozens of useful tools without bogging +your system down too much. + +`Git <http://git-scm.com/>`_ is a distributed code versioning system +we use to track changes in our source code; ``git-core`` is the +corresponding package. + +``wget`` is a simple tool to download files over http from the command +line; installing it is optional (you could pull in the required +downloads using a browser). + +``screen`` is a screen manager; in the context of Maple, we use it to +connect to serial port devices. + +``dfu-util`` is a tool from the `OpenMoko`_ project that we use to +upload programs to the Maple over USB. .. _OpenMoko: http://openmoko.com/ -:command:`openocd` is a `JTAG +``openocd`` is a `JTAG <http://en.wikipedia.org/wiki/Joint_Test_Action_Group>`_ control program used in conjunction with an ARM JTAG device to do in circuit debugging (pause/resume program execution, upload and download code, -read out register status, etc). (optional) +read out register status, etc). It's also optional. Lastly, our reset script (which sends control signals over the USB-serial connection to restart and enter the bootloader) is written -in Python and requires the `PySerial -<http://pyserial.sourceforge.net/>`_ library (the ``python-serial`` -package; this could also be installed with `easy_install -<http://peak.telecommunity.com/DevCenter/EasyInstall>`_). +in `Python <http://python.org>`_, and requires the `PySerial +<http://pyserial.sourceforge.net/>`_ library available in the +``python-serial`` package. This can also be installed with +`easy_install <http://peak.telecommunity.com/DevCenter/EasyInstall>`_. **2. Fetch libmaple and Compiler Toolchain** :: @@ -100,10 +105,10 @@ then download and extract the ARM compiler toolchain. The :file:`arm/bin/` directory will need to be added to ``PATH``; you can check that this worked by entering ``arm-none-`` and hitting tab -to auto-complete (bash should show a bunch of results). Regardless of -where you put the toolchain, make sure to preserve its internal -directory layout, as the binaries make relative path calls and -references. +to auto-complete (your shell should show a bunch of results). +Regardless of where you put the toolchain, make sure to preserve its +internal directory layout, as the binaries make relative path calls +and references. After you're done, you'll probably want to update your shell startup script so :file:`~/libmaple/arm/bin` stays in your ``PATH``. @@ -118,12 +123,12 @@ From the libmaple directory, :: $ sudo cp support/scripts/45-maple.rules /etc/udev/rules.d/45-maple.rules $ sudo /etc/init.d/udev restart -As a security precaution on linux, unknown USB devices can only be -accessed by the superuser. This udev script identifies the Maple based -on its vendor and product IDs, mounts it to :file:`/dev/maple`, and -grants read/write permissions to the ``plugdev`` group. After -restarting :command:`udev` you'll need to fully unplug or power cycle -any Maples connected to the computer. +As a security precaution on Linux, unknown USB devices can only be +accessed by root. This udev script identifies the Maple based on its +vendor and product IDs, mounts it to :file:`/dev/maple`, and grants +read/write permissions to the ``plugdev`` group. After restarting +``udev`` you'll need to fully unplug or power cycle any Maples +connected to the computer. **So far, so good?** @@ -140,38 +145,40 @@ stated previously, this document assumes a general level of Unix aptitude on the part of the reader; if you're uncomfortable using Terminal (or if you don't know what that means), then you should probably stick with using the `Maple IDE -<http://leaflabs.com/docs/maple-ide/>`_ to develop programs. +<http://leaflabs.com/docs/maple-ide/>`_ to write programs. **1. Collect and Install Tools** -You will need the following tools\ [#fmacports]_ to get started: +You will need the following tools\ [#fpackman]_ to get started: 1. `XCode <http://developer.apple.com/technologies/xcode.html>`_: If you're reading this, you've probably already got this. Provides - compilers and other basic tools of the trade. It's a free download, - but requires registration (gross, we know). + compilers and other basic tools of the trade. While XCode was once + free of charge, Apple has since begun charging for it; if you'd + rather not pay, you can probably get by with just a `make + <http://www.gnu.org/software/make/>`_ binary. 2. `Git <http://git-scm.com/>`_: All of our code is tracked by a - distributed versioning system called git. A `Mac installer + distributed versioning system called Git. A `Mac installer <http://code.google.com/p/git-osx-installer/downloads/list?can=3>`_ is available. - 3. :command:`dfu-util`: A tool from `OpenMoko`_ that we use to upload - programs to the Maple over USB. If you're feeling masochistic, there - are instructions for `building dfu-util from source + 3. ``dfu-util``: A tool from `OpenMoko`_ that we use to upload + programs to the Maple over USB. If you prefer to compile from + source, OpenMoko provides instructions for `building dfu-util <http://wiki.openmoko.org/wiki/Dfu-util#Mac>`_. - However, if you've got better things to do, you can steal a dfu-util - binary from a program called `Openmoko Flasher + If you're in a hurry, you can steal a dfu-util binary from a program + called `Openmoko Flasher <http://www.handheld-linux.com/wiki.php?page=Openmoko%20Flasher>`_. To do this, first `download Openmoko Flasher <http://projects.goldelico.com/p/omflasher/downloads/>`_, then copy - the .app into your :file:`/Applications` folder (or wherever you - like). Let's pretend you saved the .app to the directory + the OpenMoko application into your :file:`/Applications` folder (or + wherever you like). Let's pretend you saved the .app to the directory :file:`/Applications/OpenMoko Flasher.app` - Then the :command:`dfu-util` binary resides in + Then the ``dfu-util`` binary resides in :file:`/Applications/OpenMoko Flasher.app/Contents/Mac OS/dfu-util` @@ -188,8 +195,9 @@ You will need the following tools\ [#fmacports]_ to get started: .app, but you're on your own. To make sure this worked, try plugging in your Maple, making sure - it's in bootloader mode (you can do this by pressing RESET, then - quickly pressing BUT and holding it for several seconds), then + it's in :ref:`perpetual bootloader mode + <troubleshooting-perpetual-bootloader>` (do this by pressing RESET, + then quickly pressing BUT and holding it for several seconds), then running :: $ dfu-util -l @@ -212,8 +220,8 @@ You will need the following tools\ [#fmacports]_ to get started: $ python setup.py build $ sudo python setup.py install - The package is also available via :command:`easy_install`, so if - you're comfortable using that, you could also install it with :: + The package is also available via ``easy_install``, so if you're + comfortable using that, you could also install it with :: $ easy_install pyserial @@ -288,20 +296,20 @@ Woo! It worked. The ``dec`` field at the end gives the total program size in bytes. The long listing of object files above the ``Final Size`` helps to identify bloated code. As you write larger projects, you may find that they use too much space. If that happens, the -file-by-file listing will help you track down the fatties porking up -your program. +file-by-file listing will help you track down the culprits. .. _toolchain-upload: Upload a program ---------------- -Ok, let's blow away the little example program and upload the -interactive test session to your Maple. This will let you interact -textually with the Maple via USB-serial. If you're on Linux, then -before executing :command:`make install`, you'll want to have the udev -rules setup :ref:`as described above <toolchain-udev>`. Plug in your Maple -using the mini-b USB cable; then run :: +Let's blow away the little example program and upload the interactive +test session to your Maple. This will let you interact with the Maple +over a :ref:`USB serial port <usb>`. If you're on Linux, then before +executing ``make install``, you'll want to have the udev rules setup +:ref:`as described above <toolchain-udev>`. + +Plug in your Maple using the Mini-B USB cable; then run :: $ cd ~/libmaple $ cp examples/test-session.cpp main.cpp @@ -312,91 +320,106 @@ using the mini-b USB cable; then run :: A number of things can go wrong at this stage. Simple debugging steps include using :ref:`perpetual bootloader mode <troubleshooting-perpetual-bootloader>`, restarting the Maple a couple -times, :command:`make clean`, etc. If nothing works, the `forum`_ is -your friend. +times, ``make clean``, etc. If nothing works, the `forum`_ is your +friend. .. _toolchain-serialusb: -Communicate over USB-serial interface +Communicate over USB-Serial interface ------------------------------------- -Okay, now that we've flashed the interactive test session to the -Maple, let's test it out. The device for the maple should look -something like :file:`/dev/ttyACMXXX` on Linux or -:file:`/dev/tty.usbmodemXXX` on OS X, but it might have a slightly -different name on your system. To open up a session, run :: +Now let's try out the interactive test session. The serial port +device file should look something like :file:`/dev/ttyACMXXX` on Linux +or :file:`/dev/tty.usbmodemXXX` on OS X, but ``XXX`` will vary +depending on your system. Try using one of these to find out which it +is:: + + # Linux + $ ls /dev/ttyACM* + + # OS X + $ ls /dev/tty.usbmodem* + +To open up a session, run :: $ screen /dev/ttyXXX -If the interactive test program built and uploaded correctly, you -should be able to connect without any errors reported by -:command:`screen`. Type ``h`` or hit the space bar to get a response; -there are a number of commands which demonstrate Maple peripheral -features. As of October 2010, the HardwareSerial library is blocking, -so using any commands which would write to the USART Serial ports will -cause the program to hang. To exit the screen session, type :kbd:`C-a -C-\\` (control-a, followed by control-backslash) on Mac, or :kbd:`C-a -k` (control-a k) on Linux, and type ``y`` when prompted if you're -sure. +If the interactive test program built and uploaded correctly, +``screen`` won't report any errors, and will present you an empty +terminal. Your board is now waiting for you to send it a command. +Type ``h`` to print a list of commands which demonstrate various +features; type any command's letter to run it. + +To exit the screen session, type :kbd:`C-a C-\\` (control-a, followed +by control-backslash) on Mac, or :kbd:`C-a k` (control-a k) on Linux, +and type ``y`` when prompted if you're sure. .. note:: - Using :command:`screen` in this way sometimes messes up your - terminal session on OS X. If your shell starts acting up after you - exit screen, you should be able to fix it with :: + Using ``screen`` sometimes messes up your terminal session on OS X. + If your shell starts acting funny after you exit ``screen``, you + should be able to fix it with :: $ reset && clear + If that doesn't work, just close the Terminal window and open up a + new one. + .. _toolchain-projects: Starting your own projects -------------------------- -.. TODO fix the build-targets.mk mess, note the "library" target - So everything worked, and you want to start your own project? Great! -It's easy. Just set the environment variable ``LIB_MAPLE_HOME`` in -your shell startup script to point to the libmaple repository you -cloned (this tutorial assumes you put it in :file:`~/libmaple`). For -example, if you use bash as your shell, just put this line in your -:file:`~/.bashrc` or :file:`~/.bash_profile`:: - - export LIB_MAPLE_HOME=~/libmaple - -Now, in order to start your own projects, just grab a copy of the -:file:`Makefile` and skeleton :file:`main.cpp` we provided in the -libmaple repository, and you're good to go:: - - $ cd - $ mkdir my-awesome-project - $ cp ~/libmaple/Makefile ~/libmaple/build-targets.mk my-awesome-project - $ cp ~/libmaple/main.cpp.example my-awesome-project/main.cpp - -(TEMPORARY: The file :file:`build-targets.mk` is where the rule to -build the object file for :file:`main.cpp` lives. If you have multiple -source files, you'll probably need to look at it and edit as -appropriate. We're sorry about that and will update the Makefile -structure later to remove this pain point.) Then hack away! You can -:command:`make`, :command:`make clean`, and :command:`make install` -from your new directory :file:`my-awesome-project` just like you did -in the libmaple repository. - -.. note:: - - We update the libmaple repository fairly frequently with bugfixes - and other improvements. In order get access to these in your local - copy of the repository, you should periodically update it with:: - - $ cd $LIB_MAPLE_HOME - $ git pull - - The `commits page - <http://github.com/leaflabs/libmaple/commits/master>`_ for the - github repository is a good place to watch for bleeding-edge - updates; our `blog <http://leaflabs.com/blog/>`_ is the place to - watch for major releases. We keep releases of libmaple and the - Maple IDE in lockstep, so any IDE updates will have corresponding - library updates. +There are two ways to go about it. + +If your project is small, all you have to do is replace +:file:`~/libmaple/main.cpp` with your own code, and you're free to use +``make`` and ``make install`` in the same way you did when you first +:ref:`uploaded a program <toolchain-upload>`. + +If you have a more complicated project, with its own Makefile and +multiple source files, or if you're using an IDE that creates its own +Makefile, you'll probably want to load libmaple from an archive (a +build-time library, not a DLL). + +To create an archive, use the ``library`` Makefile target:: + + $ cd ~/libmaple + $ make library + +This will produce a build-time library in the file +:file:`~/libmaple/build/libmaple.a`. To use it, make sure that you +link against that library, and that the libmaple sources are in your +include path. + +At a minimum, your include path should contain the directories +:file:`~/libmaple/libmaple` and :file:`~/libmaple/wirish/`. If you +want to use one of the officially supported :ref:`libraries +<libraries>`, those live under :file:`~/libmaple/libraries/`. The +main include file for the Wirish library is +:file:`~/libmaple/wirish/wirish.h`. + +Getting Updates +--------------- + +We update libmaple fairly frequently with bugfixes and other +improvements. In order get access to these in your local copy of +the repository, you should periodically update it with:: + + $ cd ~/libmaple + $ git pull + +We keep releases of libmaple and the Maple IDE in lockstep, so any +IDE updates will have corresponding library updates. Our `blog +<http://leaflabs.com/blog/>`_ is the place to watch for major +releases; an `RSS feed <http://leaflabs.com/blog/feed/>`_ is +available. + +You can sign up for a free `Github <https://github.com/plans>`_ +account and `watch libmaple +<https://github.com/leaflabs/libmaple/watchers>`_ to receive +notifications about bleeding-edge development. .. _toolchain-openocd: @@ -405,20 +428,25 @@ Debug with OpenOCD TODO. For now see `this great guide <http://fun-tech.se/stm32/OpenOCD/index.php>`_ from fun-tech.se, and -the ``jtag`` Makefile target. +the ``jtag`` Makefile target. There is also a `JTAG How-To +<http://wiki.leaflabs.com/index.php?title=Maple_JTAG_How_To>`_ page on +our `wiki <http://wiki.leaflabs.com>`_ which you may find useful. .. _toolchain-exuberantly: Go forth exuberantly! --------------------- -Let us know what you come up with! Use #leaflabs on Twitter, post in -the `forum`_, track us down in the real world, whatever. We love -projects! +Let us know what you come up with! Use #leaflabs on `Twitter +<http://twitter.com/leaflabs>`_, post in the `forum`_, join the the +#leafblowers IRC channel on `freenode +<http://freenode.net/irc_servers.shtml>`_, whatever. We love projects! .. rubric:: Footnotes -.. [#fmacports] Some of these software packages might be available on - `MacPorts <http://www.macports.org/>`_. The author had some bad +.. [#fpackman] Some of these software packages might be available on + `MacPorts <http://www.macports.org/>`_ or `Homebrew + <http://mxcl.github.com/homebrew/>`_. The author had some bad experiences with MacPorts a few years ago, though, and hasn't - touched it since. Of course, your mileage may vary. + touched a package manager on OS X since. Of course, your mileage + may vary. |