Add section describing how to write RTC device drivers. This should
help ensure consistent RTC behavior across system reboots.
Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
Move down the "History of RTCs in Zephyr" which is least relevant,
especially now that the RTC API is well established.
Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
Fixes an issue in which "SDHC" had been incorrectly expanded to
"Secure Digital High Capacity" instead of "SD Host Controller".
Since this page is listed under "Peripherals" and since the
SD Host Controller API is not supposed to be used by applications,
the more generic and recognizable title "SD card interface" is used,
and users are pointed to pages relevant to them (disk access API
and SD card subsystem).
Signed-off-by: Egill Sigurdur <egill@egill.xyz>
The i3c group address support is rather very incomplete here. Remove
references to it. This could all easily come back when/if group support
comes in.
Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
What is the change?
This commit adds support for Armv8.1-M MPU architecture's PXN attribute.
This includes support for configuring MPU regions with PXN via
custom mpu_config, devicetree and static mpu_config.
The existing MPU region attribute macros are updated to retain existing
behaviour with this change with an addition of REGION_RAM_ATTR_PXN to be
used if one needs to configure a RAM region with PXN MPU attribute.
Why do we need this change?
Armv8.1-M architecture introduced a new MPU region attribute called
Privilege eXecute Never (PXN).
If an MPU region is configured with the PXN attribute set and if the,
processor attempts to execute code in this region while at
privileged level, a Memory Management Fault exception is triggered.
This ensures that specific tasks are executed only in unprivileged mode
and helps in preventing secure privilege escalation attacks.
Signed-off-by: Sudan Landge <sudan.landge@arm.com>
Nordic has a new tool, nRF Util (`nrfutil`) which is replacing the
previous set of command-line tools (particularly `nrfjprog`) that Zephyr
had been using by default in many of the boards to flash the firmware
onto the device.
Since nRF Util is already mature and is going to be replacing the existing
tools, including `nrfjprog`, it is now a good time to change the default
flash tool to reflect this fact.
Note that `nrfjprog` support is not being removed at all, but this may
be a breaking change for users that do not have nRF Util installed. For
this reason we also add a note in the migration guide.
More info:
https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/nrf-util-unified-command-line-utility
Installation:
https://www.nordicsemi.com/Products/Development-tools/nrf-util
Documentation:
https://docs.nordicsemi.com/bundle/nrfutil/page/README.html
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
not sure "micro controller" is a typo.
Happy to update it if needed,
or feel free to close this. Thanks for your work!
Signed-off-by: Shan Pen <bricle031@gmail.com>
The BLE acronym is not an official description of Bluetooth
LE, and the Bluetooth SIG only ever refers to it as Bluetooth
Low Energy or Bluetooth LE, so Zephyr should as well.
This commit does not change any board or vendor specific
documentation, and the term BLE may still be used in those.
It will be up to the vendors to update it if they want,
since many of them are using the term BLE in their
products.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit updates the SMP section documentation so that it reflects the
current status of SMP support in Zephyr for RISC-V, including pointing to
hardware-based platforms that as of date support SMP.
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Migrates the peripherals documentation to the new step interval based APi
instead of the velocity one.
Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
Clarify how to configure serial output for the console for the two most
common cases. Follow up on commit 0cae816b27
("boards: add common configuration for CDC ACM UART")
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Expands the caching documentation to include a high-level overview
of caching strategies and the features available in Zephyr.
Signed-off-by: Dane Wagner <dane.wagner@gmail.com>
Update the migration-guide to inform the users that now
CONFIG_ENTROPY_GENERATOR is automatically enabled as soon as
devicetree property "zephyr,entropy" is set.
Update also the "General recommendations" section of the Board Porting
Guide on the same topic.
Signed-off-by: Valerio Setti <vsetti@baylibre.com>
This commit refactos set_actual_position to set_reference_position.
stepper_set_reference_position is more apt in regards to what this func
actually does
Signed-off-by: Jilay Pandya <jilay.pandya@outlook.com>
This commit fixes incorrect c prototype and defintion of
stepper_set_callback to stepper_set_event_callback
Signed-off-by: Jilay Pandya <jilay.pandya@outlook.com>
Links and the manufacturer name are updated from maxim to analog
for the 1-wire subsystem and the related ds18b20 sensor.
After the acquisition of Maxim Integrated the documentation
of these devices has been moved to the analog.com website.
Redirects exist, so they are not broken yet,
but we should not rely on that.
Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
Utilize a code spell-checking tool to scan for and correct spelling errors
in various files within the `doc` directory.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
In preparation of adding a check for dead references, this commit fixes
currently broken zehpyr_file: links.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
It's already mentioned in the board.tmpl template file as well as in
documentation writing guidelines so fix this leftover and make sure
people contributing boards aim for webp format as it helps with file
size while supporting transparency.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
The board file used by twister is the normalized board target and not
just the board name.
Indicate this by changing plank.yaml to plank_<qualifiers>.yaml in the
board porting guide.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
This updates the documentation of all the openISA boards to use
the new `zephyr:board::` directive.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
This updates the documentation of all the NXP boards to use
the new `zephyr:board::` directive.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
This updates the documentation of all the Ezurio boards to use
the new `zephyr:board::` directive.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
Use EXTRA_CONF_FILE in documentation .rst/.md files,
that replaced deprecated OVERLAY_CONFIG since the Zephyr v3.4 release.
Signed-off-by: Andrej Butok <andrey.butok@nxp.com>
Adds support for cooperative locking/unlocking the VPX vector registers.
Provided that all VPX enabled threads use these routines to control
access to the VPX vector registers, it will allow multiple threads to
safely use them without the need for saving/restoring them upon each
context switch.
Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
