zephyr

History

Andrew Boie efc5fe07a2 kernel: overhaul unused stack measurement The existing stack_analyze APIs had some problems: 1. Not properly namespaced 2. Accepted the stack object as a parameter, yet the stack object does not contain the necessary information to get the associated buffer region, the thread object is needed for this 3. Caused a crash on certain platforms that do not allow inspection of unused stack space for the currently running thread 4. No user mode access 5. Separately passed in thread name We deprecate these functions and add a new API k_thread_stack_space_get() which addresses all of these issues. A helper API log_stack_usage() also added which resembles STACK_ANALYZE() in functionality. Fixes: #17852 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>		2020-02-08 10:02:35 +02:00
..
src	kernel: overhaul unused stack measurement	2020-02-08 10:02:35 +02:00
CMakeLists.txt	…
README.rst	doc: s/device tree/devicetree/	2019-10-08 11:53:40 +02:00
prj.conf	…
sample.yaml	…

README.rst

.. _bluetooth-hci-spi-sample:

Bluetooth: HCI SPI
##################

Overview
********

Expose Zephyr Bluetooth Controller support over SPI to another device/CPU using
the Zephyr SPI HCI transport protocol (similar to BlueNRG).

Requirements
************

* A board with SPI slave, GPIO and BLE support.

Building and Running
********************

In order to use this application, you need a board with a Bluetooth
controller and SPI slave drivers, and a spare GPIO to use as an
interrupt line to the SPI master.

You then need to ensure that your :ref:`device-tree` settings provide a
definition for the slave HCI SPI device::

	bt-hci@0 {
		compatible = "zephyr,bt-hci-spi-slave";
		...
	};

You can then build this application and flash it onto your board in
the usual way; see :ref:`boards` for board-specific building and
flashing information.

You will also need a separate chip acting as BT HCI SPI master. This
application is compatible with the HCI SPI master driver provided by
Zephyr's Bluetooth HCI driver core; see the help associated with the
BT_SPI configuration option for more information.

Refer to :ref:`bluetooth-samples` for general Bluetooth information, and
to :ref:`96b_carbon_nrf51_bluetooth` for instructions specific to the
96Boards Carbon board.