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DESK-MX9-L/Deployment/Power Manager

806 bytes added, 2 April
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There are various operating modes available.
'''Attention, ''': the SOC used does not support the DVFS and therefore the use of the <code>governor </code> present in the Linux kernel, instead of this functionality to scale the performance to have lower consumption by the SOC there is a new technology the <code>Low Drive mode</code>.
=== Low Drive mode ===
=== Operational Mode ===
The typical operating modes envisaged are:
- Quiet-normal (LPM: Over drive)
- Quiet-nominal (LPM: Nominal drive)
- Stressed-normal (LPM: Over drive)
- Stressed-nominal (LPM: Nominal drive)
- Suspend
- Freeze
 
==== Quiet-normal (LPM: Over drive) ====
 
the measurements were performed with follow device connected to the board (Only the most energy-intensive devices are listed).
* Eth0 interface up.
* Eth1 interface up.
* uSD.
* DSI-HDMI converter and HDMI display up.
 
{| class="wikitable"
!Mode
!Caduta misurata
!Corrente
!Potenza
!Diff
|-
|'''Normal mode'''
|5.0 mV
|0,5 A
|1.65 W
|ref
|-
|'''Low power mode'''
|4.69 mV
|0.469 A
| 1.55 W
| -6 %
|-
|'''Suspend to RAM'''
|0.46 mV
|0.046 A
|0.152 W
| -91 %
|-
|'''Freeze'''
|1.79 mV
|0.179 A
|0.59 W
| -64 %
|}
dave_user
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