nuttx/boards/sam4cmp-db
Alin Jerpelea a1c991d921 Merged in alinjerpelea/nuttx (pull request #963)
Move boards to boards folder

* boards: rename configs folder to boards

    This is the proposed layout after the change:

    boards: - folder containing board folders
            <board>: - name of each board
                    drivers: - extra drivers specific for platform
                    include: - header files for the boars
                    scripts: - extra scripts specific for platform
                        src: - board specific code
                      tools: - extra tools specific for platform
                    <config>: - board specific configuration(s)

    Note:
    <xxx> names are dependent on platform

    This is a logical change to aim to the arch layout but this is a
    huge change it should be done in several steps to lower the risk.

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Kconfig: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Makefile: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Makefile.*: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* Make.defs: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .sh: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .mk: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .c & .h: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

* .bat: replace configs with boards

    The change is needed after the path change

    Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-08-05 12:04:14 +00:00
..
include
nsh
scripts
src
Kconfig
README.txt

README
^^^^^^

README for NuttX port to the SAM4CMP-DB board.

  http://www.atmel.com/tools/SAM4CMP-DB.aspx

The board is intended to test NuttX SMP features for dual Cortex-M4.


Settings
^^^^^^^^
1. Both CPUs are running at 92.160MHz with PLLB.
2. Serial console can be used via on-board USB-UART (115200/8/N/1)
3. Interrupt handlers such as timer and UART are handled on CPU0
4. Both CPUs share internal SRAM0 (128KB)
5. SRAM1 is used to boot CPU1.
6. Cache controllers are disabled because of no snooping features.

Status
^^^^^^
Currently SMP freature works on the board but is not stable.

1. "nsh> sleep 1 &" works without crash.
2. "nsh> smp " sometimes works but some assertions might happen.
3. "nsh> ostest " causes deadlocks during the test.