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Piotr Mienkowski 4566d0ec58 drivers: i2s_sam_ssc: use dma_reload() to continue transfer
Use `dma_reload()` instead of `dma_config()` within DMA callbacks. This
significantly shortens time required to reconfigure DMA engine to
transmit / receive the next data block and allows to configure higher
I2S bus data rates.

The maximum I2S data rate supported by the driver is still lower than
that of underlying hardware. To fully support hardware capabilities the
I2S driver would have to use scatter-gather / linked-list DMA transfer.
This is currently not supported by the DMA driver.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2021-07-27 09:52:07 -04:00
.buildkite ci: Update daily build to use SDK 0.13.0-rc3 2021-07-22 19:37:34 +03:00
.github actions: footprint-tracking: install gitpython 2021-07-21 17:08:36 +03:00
arch cmake: oneApi: add oneApi support on windows. 2021-07-27 07:20:12 -04:00
boards Microchip: XEC RTOS timer: Add MEC172x support to driver 2021-07-27 09:29:34 -04:00
cmake cmake: oneApi: add oneApi support on windows. 2021-07-27 07:20:12 -04:00
doc doc: application: Document west outside workspace 2021-07-26 12:31:19 -04:00
drivers drivers: i2s_sam_ssc: use dma_reload() to continue transfer 2021-07-27 09:52:07 -04:00
dts Microchip: XEC RTOS timer: Add MEC172x support to driver 2021-07-27 09:29:34 -04:00
include lib: os: cbprintf: Add support for conversion to fsc package 2021-07-27 14:50:45 +02:00
kernel kernel: fix several typos in a comment in timeout.c 2021-07-23 16:06:54 -04:00
lib lib: os: cbprintf: Add support for conversion to fsc package 2021-07-27 14:50:45 +02:00
misc toolchain: add GEN_ABSOLUTE_SYM_KCONFIG() 2021-02-02 09:23:45 -05:00
modules manifest: Update hal_nordic 2021-07-23 15:54:59 -04:00
samples samples: dsa: update to match new api 2021-07-26 19:37:22 -04:00
scripts twister: Fix wrong error counter in report 2021-07-23 18:33:18 +03:00
share cmake: check zephyr version if specified and ZEPHYR_BASE is set 2021-05-25 16:48:35 -05:00
soc Microchip: XEC RTOS timer: Add MEC172x support to driver 2021-07-27 09:29:34 -04:00
subsys lib: os: cbprintf: Add support for conversion to fsc package 2021-07-27 14:50:45 +02:00
tests tests: lib: cbprintf: Add tests for fsc package 2021-07-27 14:50:45 +02:00
.checkpatch.conf checkpatch: ignore linux specific ENOSYS warning 2021-03-30 10:50:14 -05:00
.clang-format clang-format: Change lines length limit from 80 to 100 2021-05-06 08:13:32 -05:00
.codecov.yml ci: add .codecov.yml for codecov.io configuration 2018-01-03 13:12:03 -05:00
.editorconfig editorconfig: indent Kconfig files with tabs 2020-07-08 21:30:38 -04:00
.gitattributes gitattributes: Tell linguist to ignore test pattern files 2020-04-23 14:07:57 -04:00
.gitignore gitignore: add common Python venv directories 2021-04-20 11:30:40 -05:00
.gitlint gitlint: match max title length restriction with checkpatch 2019-05-29 14:43:16 -04:00
.mailmap mailmap: update mailmap file with some stray emails 2021-06-17 14:15:41 -04:00
.uncrustify.cfg uncrustify: Add a rule to remove space inside function argument 2018-10-16 09:50:03 -04:00
CMakeLists.txt kernel: fix kobj table if having .sdata section. 2021-07-22 07:29:21 -05:00
CODE_OF_CONDUCT.md coc: move to markdown format 2019-01-24 15:37:15 -05:00
CODEOWNERS include: dt-bindings: remove dma header for stm32 soc 2021-07-22 04:52:53 -04:00
CONTRIBUTING.rst doc: Fixed a link in CONTRIBUTING.rst 2019-02-28 12:46:04 -08:00
Kconfig kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.zephyr kconfig: soc and shield cleanup 2021-06-11 16:13:22 +02:00
LICENSE add top level Apache 2.0 license file 2016-02-05 20:24:37 -05:00
MAINTAINERS.yml MAINTAINER: remove jocelyn-li from collaborators list. 2021-07-16 10:53:52 +02:00
README.rst readme: add missing logo 2021-07-21 10:37:37 -05:00
VERSION version: add EXTRAVERSION to VERSION file 2021-06-05 07:07:01 -04:00
version.h.in cmake: explain BUILD_VERSION and KERNEL_VERSION_* 2019-05-09 11:52:05 +02:00
west.yml manifest: update hal_atmel 2021-07-26 05:13:40 -04:00
zephyr-env.cmd scripts: remove west from scripts/ 2019-01-29 10:15:01 +01:00
zephyr-env.sh zephyr_env.sh: Remove semicolons at ends of lines 2019-12-10 14:34:46 -08:00

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <img src="doc/_static/images/logo-readme.png">
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img
   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a href="https://buildkite.com/zephyr/zephyr">
   <img
   src="https://badge.buildkite.com/f5bd0dc88306cee17c9b38e78d11bb74a6291e3f40e7d13f31.svg?branch=main"></a>


The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM Cortex-M,
Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V, and a large number of
`supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Slack; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

* **Help**: `Asking for Help Tips`_
* **Documentation**: http://docs.zephyrproject.org (`Getting Started Guide`_)
* **Source Code**: https://github.com/zephyrproject-rtos/zephyr is the main
  repository; https://elixir.bootlin.com/zephyr/latest/source contains a
  searchable index
* **Releases**: https://github.com/zephyrproject-rtos/zephyr/releases
* **Samples and example code**: see `Sample and Demo Code Examples`_
* **Mailing Lists**: users@lists.zephyrproject.org and
  devel@lists.zephyrproject.org are the main user and developer mailing lists,
  respectively. You can join the developer's list and search its archives at
  `Zephyr Development mailing list`_. The other `Zephyr mailing list
  subgroups`_ have their own archives and sign-up pages.
* **Nightly CI Build Status**: https://lists.zephyrproject.org/g/builds
  The builds@lists.zephyrproject.org mailing list archives the CI
  (buildkite) nightly build results.
* **Chat**: Zephyr's Slack workspace is https://zephyrproject.slack.com.  Use
  this `Slack Invite`_ to register.
* **Contributing**: see the `Contribution Guide`_
* **Wiki**: `Zephyr GitHub wiki`_
* **Issues**: https://github.com/zephyrproject-rtos/zephyr/issues
* **Security Issues**: Email vulnerabilities@zephyrproject.org to report
  security issues; also see our `Security`_ documentation. Security issues are
  tracked separately at https://zephyrprojectsec.atlassian.net.
* **Zephyr Project Website**: https://zephyrproject.org

.. _Slack Invite: https://tinyurl.com/2vue8666
.. _supported boards: http://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: http://docs.zephyrproject.org
.. _Introduction to Zephyr: http://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: http://docs.zephyrproject.org/latest/getting_started/index.html
.. _Contribution Guide: http://docs.zephyrproject.org/latest/contribute/index.html
.. _Zephyr GitHub wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _Zephyr Development mailing list: https://lists.zephyrproject.org/g/devel
.. _Zephyr mailing list subgroups: https://lists.zephyrproject.org/g/main/subgroups
.. _Sample and Demo Code Examples: http://docs.zephyrproject.org/latest/samples/index.html
.. _Security: http://docs.zephyrproject.org/latest/security/index.html
.. _Asking for Help Tips: https://docs.zephyrproject.org/latest/getting_started/index.html#asking-for-help