Windows Quick Start
Installing the required software
Install the Miosix Toolchain
To be able to compile the Miosix kernel and your application, you need a patched version of the GCC compiler called Miosix toolchain, you can find the link to download it here. At the end of the installation you will need to reboot your computer (sorry, it's Windows...)
Git
To download the Miosix kernel and keep it up to date, you need the git version control system.
It is recommended to install it from git-scm.com. Please do not uncheck the Windows Explorer integration feature during the installation, as you will need it to install the kernel sources.
Perl
The Perl programming language is used by the Miosix build system. Unlike on GNU/Linux computers where Perl is pre-installed, for Windows you'll need to install it separately.
Strawberry perl is the recomended Perl version for Miosix on Windows.
Flashing tool
With the installed Miosix toolchain you'll be able to compile the kernel, but you'll also need a way to transfer it to your microcontroller. This operation is usually called 'flashing' the microcontroller. Miosix can work with any flashing utility that accepts as input raw binary files, and on Windows you'll usually want to install the flashing tool provided by your chip vendor.
For STM32 chips, you can use the STLink utility available here.
Text editor or IDE
It is recommended to download a better text editor than Notepad, as you will need it to edit the Miosix configuration files. Notepad++ is a good option, but many other options exist. Just don't use Notepad, because it does not recognize Unix line-endings and will show you Miosix source files as if they were composed of a single line of text.
As an alternative to Notepad++, you may want to use an IDE.
Serial port viewer
Miosix redirects stdin/stdout to a serial port by default on most boards, so to see the boot log and the output of printf() in your application you need a program to interact with the serial port. PuTTY is an option, although old fashioned. TODO: There are likely better options for Windows too.
Downloading and configuring the Miosix kernel
This section is a stripped down guide with the bare minimum to get you started, we also have a full guide about Miosix and git workflow. Following the tutorial in this page, your project directory will not be under version control (git). The Miosix and git workflow page shows how to create a git repository for your project and add the Miosix kernel as a git submodule.
Before downloading the kernel, however, you first have to create a directory for your project (in this case, the hello world), and then clone the kernel as a subdirectory.
Using the Windows explorer, create a 'hello directory, double click on it. Then right-click on the empty directory. Select Git bash to open a git shell. There you can type the commands to download the kernel.
The Miosix git repository used to be hosted at gitorious.org, but the service was shut down. For this reason, the kernel is now hosted directly at miosix.org. There is also a github mirror and the two repositories will be always kept in sync. Currently, the master branch contains the stable 2.0 kernel, while the testing branch contains the current development version. Kernel versions prior to 2.0 are deprecated.
git clone https://miosix.org/git-public/miosix-kernel.git
cd miosix-kernel
git fetch origin
## To select the development version of the kernel
#git checkout -b testing origin/testing
exit
Note that it is possible to paste commands in the shell (so as to avoid typing them, which can be tedious and lead to typos), but you have to do it one line of text at a time, and to paste you need to use the Shift+Ins shortcut, not the usual Ctrl+v one. The last command, exit, will close the shell.
Note that there is also a 'Git GUI' in the right click menu, but since I don't know how to use it, you're on your own if you choose that route.
Configuring and compiling the kernel
More in-depth information on how th configure the kernel for your board can be found in the Board list, but for now we will assume you have an stm32f4discovery, which is a common board, and briefly show how to get to a blinking LED example.
Top-level directory
First of all the miosix-kernel directory is often referred to as the top-level directory of the kernel. It contains, among other, the main.cpp file which is where you can start writing your application code, the Makefile where you can add additional C++ and C source files to be compiled, and the miosix directory which contains the kernel.
All paths in this wiki, unless they start with a '/' (for Linux) or 'C:\' (For Windows), are intended relative to Miosix's top-level directory, so if we're talking about the 'miosix/config/Makefile.inc' file you can find it within the directory where you have downloaded the kernel from git.
Configuring the kernel
The kernel is configured by editing two files, named miosix/config/Makefile.inc and miosix/config/miosix_settings.h. Open the first one in Notepad++, and select your board. To do so, look for the OPT_BOARD section of the file, which looks like this:
##
## Target board, choose one. This also implicitly select the target
## architecture
##
#OPT_BOARD := lpc2138_miosix_board
OPT_BOARD := stm32f103ze_stm3210e-eval
#OPT_BOARD := stm32f103ve_mp3v2
#OPT_BOARD := stm32f100rb_stm32vldiscovery
#OPT_BOARD := stm32f103ve_strive_mini
#OPT_BOARD := stm32f103ze_redbull_v2
#OPT_BOARD := stm32f407vg_stm32f4discovery
#OPT_BOARD := stm32f207ig_stm3220g-eval
#OPT_BOARD := stm32f207zg_ethboard_v2
#OPT_BOARD := stm32f207ze_als_camboard
#OPT_BOARD := stm32l151_als_mainboard
#OPT_BOARD := stm32f407vg_bitsboard
#OPT_BOARD := stm32f205rg_sony-newman
In Makefile syntax a '#' sign denotes a comment, so to select a board you have to comment out (by prepending a '#') the default board selected, and uncomment (by removing the '#' at the start of the line) your board, which in this example is the stm32f407vg_stm32f4discovery.
Next, edit the miosix_settings.h file using Notepad++ and uncomment (by removing the '//' at the start of the line) the following line
//#define JTAG_DISABLE_SLEEP
(which is towards the end of the file). This is a C++ header file, so the comment syntax is '//'. More information on the meaning of this line can be found in miosix_settings.h, but a short summary is that this line prevents the kernel from shutting down the CPU when it has nothing to do, which saves power but interferes with the programming/debugging protocol used to program the board via QSTLink2.
Also, comment out the #error line towards the beginning of the file. This line exists to cause a compilation error if the user forgets to edit the miosix_settings.h file. The result should look like this:
// Before you can compile the kernel you have to configure it by editing this
// file. After that, comment out this line to disable the reminder error.
// The PARSING_FROM_IDE is because Netbeans gets confused by this, it is never
// defined when compiling the code.
#ifndef PARSING_FROM_IDE
//#error This error is a reminder that you have not edited miosix_settings.h yet.
#endif //PARSING_FROM_IDE
Blink a LED
Open the main.cpp file in the top-level directory using Notepad++, and replace its content with the following program:
#include <miosix.h>
using namespace miosix;
int main()
{
for(;;)
{
ledOn();
Thread::sleep(1000);
ledOff();
Thread::sleep(1000);
}
}
The Miosix board support package defines the ledOn() and ledOff() functions to control a LED on the board for all the boards that have at least one software-accessible LED.
Compiling
To compile the kernel, open a DOS shell in the Miosix top-level directory (you can 'Shift+Right click' in the top-level directory and choose 'Open command window here' in modern versions of Windows), otherwise you will have to cd your way into that directory.
To compile the kernel type make in the DOS prompt. If all goes well, the result should look like this.
Otherwise, compiler errors will appear in the DOS prompt. The number that appears under text in the make output is the size in bytes of your application plus the kernel. If you think that 90KBytes is a bit too much for a blinking led, don't worry. The kernel by default includes support for C stdio functions, filesystem code including Unicode support and the C++ exception handling runtime, all of which can be disabled to significantly reduce code size.
Programming
There are two ways to program the stm32f4discovery board. One is to use QSTLink2 directly from the DOS prompt you already have open by typing 'make program' (connect the USB cable first!), the other is through QSTLink2's GUI. You can find QSTLink2 in the start menu
Once you start it, you have to click on Connect, and it should find your stm32f4discovery board. After that, click on Send and select the main.bin file in the Miosix top-level directory.
Note that, regardless of using QSTLink2 form the DOS prompt or the GUI, there is a bug that in some circumstances blocks the microcontroller until the next powercycle. Therefore, after having programmed the microcontroller, it is recomended to unplug and reconnect the USB cable to powercycle the stm32f4discovery board. At that point, you shuold see the red LED blinking.
What's next?
You have finished the installation of the Miosix Toolchain. You may want to install and configure an IDE, or the debugger.
Uninstall the Miosix Toolchain
To uninstall the Miosix Toolchain, you can find the uninstaller in the start menu under Miosix Toolchain. Note that Git, Perl and the STLink drivers have their own uninstallers. Also, the miosix-kernel in the Documents directory will not be removed.