ChibiOSを調べる
nanoFrameworkの土台がChibiOSなので、ChibiOSを調査します。
ドキュメントはこちら。 ChibiOS free embedded RTOS - ChibiOS Homepage
Product Information
- ライセンスは、GPL3 or Apache 2.0。
- ChibiOSは4つのプロダクトで構成されている。
ChibiOS/RT 3.0 The Ultimate Guide
ChibiOS General Archietcture
- ChibiOS/RT ... the RTOS scheduler.
- ChibiOS/HAL ... the Hardware Abstraction Layer enclosing abstract drivers for most common peripherals.
The Big Picture
- Startup Code
./os/common.ports... The code executed after the reset. - Application ... the user code. main()
- ChibiOS/RT
ChibiOS/HAL
RT does not need HAL
- HAL uses RT's services through the OSAL
ChibiOS products directory organization
*****************************************************************************
*** ChibiOS products directory organization ***
*****************************************************************************
--{root} - Distribution directory.
+--os/ - ChibiOS products, this directory.
| +--rt/ - ChibiOS/RT product.
| | +--include/ - RT kernel headers.
| | +--src/ - RT kernel sources.
| | +--templates/ - RT kernel port template files.
| | +--ports/ - RT kernel port files.
| | +--osal/ - RT kernel OSAL module for HAL interface.
| +--nil/ - ChibiOS/NIL product.
| | +--include/ - Nil kernel headers.
| | +--src/ - Nil kernel sources.
| | +--templates/ - Nil kernel port template files.
| | +--ports/ - Nil kernel port files.
| | +--osal/ - Nil kernel OSAL module for HAL interface.
| +--hal/ - ChibiOS/HAL product.
| | +--include/ - HAL high level headers.
| | +--src/ - HAL high level sources.
| | +--templates/ - HAL port template files.
| | +--ports/ - HAL port files (low level drivers implementations).
| | +--boards/ - HAL board files.
| +--common/ - Files used by multiple ChibiOS products.
| | +--ports - Common port files for various architectures and
| | compilers.
| +--various/ - Various portable support files.
| +--ext/ - Vendor files used by ChibiOS products.
