Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 5 additions & 1 deletion doc/nrf/app_dev/device_guides/fem/fem_nrf21540_gpio.rst
Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,11 @@ To use nRF21540 in GPIO mode, complete the following steps:
The nRF54L devices contain only four PPIB channels between PERI Power Domain and Low Power Domain.
Due to this limitation, only two out of three pins from group ``tx-en-gpios``, ``rx-en-gpios`` and ``pdn-gpios`` (for example, ``tx-en-gpios`` and ``rx-en-gpios``) can be controlled by GPIO P0.
Select other GPIO port for the one remaining pin of the pin group (for example ``pdn-gpios``).
To ensure proper timing, set the ``tx-en-settle-time-us`` and ``rx-en-settle-time-us`` devicetree properties of the ``nrf_radio_fem`` node to the value ``12``.
To ensure proper timing, set the following devicetree properties of the ``nrf_radio_fem`` node:

* ``tx-en-settle-time-us`` to the value ``27``.
* ``rx-en-settle-time-us`` to the value ``12``.

Enable appropriate instances of the ``DPPIC`` and ``PPIB`` peripherals in the devicetree file:

.. code-block:: devicetree
Expand Down
2 changes: 1 addition & 1 deletion west.yml
Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ manifest:
# https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
- name: zephyr
repo-path: sdk-zephyr
revision: 749f6b5252fc4c3359cfa7fa4a09d65f544d9b6f
revision: pull/2762/head
import:
# In addition to the zephyr repository itself, NCS also
# imports the contents of zephyr/west.yml at the above
Expand Down
Loading