[Backport ncs-v3.1-branch] Backport commits from #3094 and #3095. #3183
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Add support for DMM which manages cache and dedicated memory spaces. Upstream PR #: 90751 Signed-off-by: Jakub Zymelka <[email protected]> (cherry picked from commit 05746fd)
…al sampling timer The SAMPLERATE register can be used as a local timer instead of triggering individual SAMPLE tasks. When SAMPLERATE.MODE is set to Timers, it is sufficient to trigger SAMPLE task only once in order to start the SAADC and triggering the STOP task will stop sampling. The SAMPLERATE.CC field controls the sample rate. The SAMPLERATE timer should not be combined with SCAN mode and only one channel should be enabled when using the internal timer. Upstream PR #: 91368 Signed-off-by: Jakub Zymelka <[email protected]> (cherry picked from commit 77547f8)
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nordicjm
jaz1-nordic
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CI not passing, Too late for 3.1.0 Closing this |
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@shanthanordic These changes are needed for ncs-3.1 to improve memory management in the SAADC driver for (nrf54H20) and support the internal timer for better accuracy. |
…ended ADC readings The ADC driver API already supports ADC readings which can return signed values, these are differential readings. In Nordic's datasheet, we have a mode called "single ended", but its just a name. "Single ended" is a differential reading, with the negative channel tied to GND. This is not compatible with zephyrs definition of a single ended reading. To support Nordic's "single ended" mode, the user must configure a differential reading, with the negative input tied to ground, which the saadc driver can then use to configure the reading as Nordic SAADC "single ended", and return negative values as expected. Upstream PR #: 94069 Signed-off-by: Jakub Zymelka <[email protected]> (cherry picked from commit 84ab620)
masz-nordic
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Aug 11, 2025
nordicjm
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Aug 11, 2025
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Backport 05746fd from #3094.
Backport 77547f8 from #3095.
Backport 84ab620 from #3147.
These commits are related, so they need to be merged together.