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Power consumption (SBC Lynx)

249 bytes removed, 14:21, 29 April 2016
Idle configurations
* UBIFS root file system mounted from Flash NAND
* processor's LDO is enabled (required to perform voltage scaling)
* Some hardware modifications are required optimizations have been implemented to minimize power consumption:
** CAN transceiver has been turned off
** All all the unneeded pull-ups on signals in the VDD_SNVS_IN voltage domain have been removed** RS232 transceiver is shutdown via unused processor's GPIO**RS485 polarization network has been removed.
===System idle===
In this case the default governor (<code>interactive</code>) is used.
{|class="wikitable" style="text-align: center;"
|-
!Board power consumption ([[#PSUBlockDiagram|probe #1]]) [1],[2]<br>[mW]!Processor subsystem power consumption ([[#PSUBlockDiagram|probe #2]]) [1],[2]<br>[mW]
|-
| 370 [2]||325 [2]
|-
|}
[1] Power consumption of the following parts is excluded:*CAN PHY*RS485 polarization network*RS232 and RS485 transceivers*Ethernet PHY [2] 24MHz active oscillator power consumption is included. As the board under test is equipped with iMX6UL revision 1.0, active oscillator is required to implement the fix described by errata ERR009455. Typical consumption of this oscillator is about 20mW. Future revision of the board will be populated with silicon revision 1.1 or newer. Thus active oscillator will be removed. For more details please refer to ''Chip Errata for the i.MX 6UltraLite''<ref name="IMX6ULCE">Freescale Semiconductor, ''Chip Errata for the i.MX 6UltraLite'', Rev. 0.1, 02/2016</ref>.
===Low-power idle===
{|class="wikitable" style="text-align: center;"
|-
!Board power consumption ([[#PSUBlockDiagram|probe #1]]) [1],[2]<br>[mW]!Processor subsystem power consumption ([[#PSUBlockDiagram|probe #2]]) [1],[2]<br>[mW]
|-
| 90 || 72
|-
|}
[1] Power consumption of the following parts is excluded:*CAN PHY*RS485 polarization network*RS232 and RS485 transceivers*Ethernet PHY [2] 24MHz active oscillator power consumption is included. As the board under test is equipped with iMX6UL revision 1.0, active oscillator is required to implement the fix described by errata ERR009455. Typical consumption of this oscillator is about 20mW. Future revision of the board will be populated with silicon revision 1.1 or newer. Thus active oscillator will be removed. For more details please refer to ''Chip Errata for the i.MX 6UltraLite''<ref name="IMX6ULCE">Freescale Semiconductor, ''Chip Errata for the i.MX 6UltraLite'', Rev. 0.1, 02/2016</ref>.
To configure the system to perform this test, the following commands have been used.
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