sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

updates

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@163 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2007-03-27 21:27:41 +00:00
parent f1eef1b902
commit 1cdfa5076b
1 changed files with 42 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
arch/README.txt
View File

@ -11,8 +11,33 @@ Table of Contents
Architecture-Specific Code
^^^^^^^^^^^^^^^^^^^^^^^^^^
The file include/nuttx/arch.h identifies all of the APIs that must
be provided by the architecture specific logic. (It also includes
The NuttX configuration consists of:
o Processor architecture specific files. These are the files contained
in the arch/<arch-name>/ directory discussed in this README.
o Chip/SoC specific files. Each processor processor architecture
is embedded in chip or System-on-a-Chip (SoC) architecture. The
full chip architecture includes the processor architecture plus
chip-specific interrupt logic, general purpose I/O (GIO) logic, and
specialized, internal peripherals (such as UARTs, USB, etc.).
These chip-specific files are contained within chip-specific
sub-directories in the arch/<arch-name>/ directory and are selected
via the CONFIG_ARCH_name selection
o Board specific files. In order to be usable, the chip must be
contained in a board environment. The board configuration defines
additional properties of the board including such things as
peripheral LEDs, external peripherals (such as network, USB, etc.).
These board-specific configuration files can be found in the
configs/<board-name>/ sub-directories.
This README will address the processor architecture specific files
that are contained in the arch/<arch-name>/ directory. The file
include/nuttx/arch.h identifies all of the APIs that must
be provided by this architecture specific logic. (It also includes
arch/<arch-name>/arch.h as described below).
Directory Structure
@ -25,18 +50,27 @@ subdirectory). Each architecture must provide a subdirectory <arch-name>
under arch/ with the following characteristics:
<arch-name>
|-- include
<arch-name>/
|-- include/
| |--<chip-name>/
| | `-- (chip-specific header files)
| |--<other-chips>/
| |-- arch.h
| |-- irq.h
| `-- types.h
`-- src
`-- src/
|--<chip-name>/
| `-- (chip-specific source files)
|--<other-chips>/
|-- Makefile
`-- (architecture-specific source files)
Summary of Files
^^^^^^^^^^^^^^^^
include/<chip-name>/
This sub-directory contains chip-specific header files.
include/arch.h
This is a hook for any architecture specific definitions that may
be needed by the system. It is included by include/nuttx/arch.h
@ -76,6 +110,9 @@ include/irq.h
This file must also define NR_IRQS, the total number of IRQs supported
by the board.
src/<chip-name>/
This sub-directory contains chip-specific source files.
src/Makefile
This makefile will be executed to build the targets src/libup.a and
src/up_head.o. The up_head.o file holds the entry point into the system