====== MIOS ======

**Overview**

MIOS is the Operating System of the Chip.
This Page covers MIOS and the BOOTLOADER (or Bootstrap Loader). General Informations can be found in the Intro-Article: [[what is a MIDIbox]].



There are two versions of MIOS: The (older) **MIOS8**, used for MBHP_Core modules equipped with 8bit PIC uControllers and **MIOS32** used for the Core_STM32 modules with 32bit STM controllers. If you are planning to build a new MidiBox, you should use the newer Core_STM32 that allows much more complex devices.

===== MIOS8 =====

{{  http://www.audiocommander.de/pics/sonst/MIOS_Overview.gif}}
MIOS8 is used for MBHP_Core modules equipped with PIC18F452, PIC18F4620 or PIC18F4685. 

**The Article [[http://www.ucapps.de/mios_bootstrap_newbies.html|MIOS Bootstrap For Newbies]] (also available as [[http://www.ucapps.de/mios_bootstrap.html|MIOS Bootstrap]] in different languages) contains important informations about how to upload MIOS - the operating system - and an application.**

Developers should consult the related project pages or [[Application Development]].



==== Documentation ====

   * [[http://www.ucapps.de/mios.html|Introduction]] <sup>uCApps</sup>
   * [[http://www.ucapps.de/mios_changelog.html|Change Log]] <sup>uCApps</sup>
   * [[http://sourceforge.net/export/rss2_projsummary.php?group_id=6121|MIOS project summary RSS feed]]
   * [[http://www.ucapps.de/mios_download.html|MIOS-Downloads]] <sup>uCApps</sup>

   * [[http://www.ucapps.de/mios_bootstrap.html|Bootstrap Loader]] <sup>uCApps</sup>
     * check out [[pic_programmer_modules]] to know how to get the Bootstrap Loader onto the PIC.

   * [[Application Development]] Section
   * [[MIOS PIC18F4620|MIOS running on a PIC18F4620]] (for certain future applications)

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==== Frequently Asked Questions ====

:!: [[MIOS FAQ|MIOS FAQ - Questions and Answers]] !\\

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===== MIOS32 =====
MIOS32 is used on Core_STM32 boards, equipped with the 32bit STM32F103RE processor. MIOS32 is prepared for other 32bit uCs as well and allows platform independent applications.

MIOS32 on a CORE_STM32 is more powerful than MIOS8:

  * MIOS32 uses the realtime operating system FreeRTOS and allows simple multitasking with different priorities. 
  * It also supports native USB MIDI for faster code upload and MIDI transfer.
  * Interfaces such as SPI and I²C can be used with DMA, allowing fast transfer at low CPU load
  * Besides hardware multiplier and division units the STM32F103RE provides more peripherals:
    * CAN or USB (can not be used in parallel)
    * SPI
    * I²C
    * Timers
    * DAC
    * ADC
    * I2S for Audio DACs
  * The STM32F103RE provides 512kB of Flash and 64kB RAM
  * BankSticks are replaced by SD Cards for more and faster memory

==== Documentation ====
  * [[http://www.ucapps.de/mbhp_core_stm32.html|Core32 Introduction]] <sup>uCApps</sup>
  * [[http://www.ucapps.de/mios32_download.html|MIOS32 Download]] <sup>uCApps</sup>
  * [[http://www.midibox.org/dokuwiki/doku.php?id=windows_mios32_toolchain_core&s|Toolchain setup guide for Windows]]
  * [[http://www.midibox.org/mios32/manual/|MIOS32 manual and function overview]]
====== See Also ======
[[Mios studio]]