No description
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> |
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arch | ||
boards | ||
cmake | ||
doc | ||
drivers | ||
dts | ||
include | ||
kernel | ||
lib | ||
misc | ||
modules | ||
samples | ||
scripts | ||
share | ||
soc | ||
subsys | ||
tests | ||
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CMakeLists.txt | ||
CODE_OF_CONDUCT.md | ||
CODEOWNERS | ||
CONTRIBUTING.rst | ||
Kconfig | ||
Kconfig.zephyr | ||
LICENSE | ||
MAINTAINERS.yml | ||
README.rst | ||
VERSION | ||
version.h.in | ||
west.yml | ||
zephyr-env.cmd | ||
zephyr-env.sh |
.. 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