Open main menu

DAVE Developer's Wiki β

Changes

Power consumption (SBC Lynx)

1,347 bytes added, 09:26, 19 April 2016
no edit summary
==Heavy load configurations==
TBDMeasurements have been performed on the following platform:* LYNX rev.0 (S-XUBB0000C0R)* System software: XUELK 0.9.0, patched to include LCD 24bit support* Power monitor: a custom current probe has been connected to the input power rail at 12V === Use cases results ===The following table shows the summary result of data collected at different checkpoints:{|class="wikitable"|-!Checkpoint!VIN Power (mW)|-| U-Boot prompt ||854|-| Linux prompt ||1000|-| StressAppTest ||1200|-| StressAppTest + LCD || 2220|-| Complete Stress Test + LCD || 2880|-|} Additional notes and reference:* U-boot is set to work at 396MHz* At Linux prompt, a fixed clock frequency of 528MHz has been set (userspace governor)* All the measures include Ethernet link at 100M* StressAppTest application is used to stress CPU and DDR3 RAM (https://github.com/stressapptest/stressapptest)* An 4.3 inches 480x272 pix LCD is used to test the 24bit parallel video interface output. The LCD backlight is driven by the 12V VIN using an external circuitry at 100% brightness* Complete Stress Test includes the following tests:** StressAppTest** USB Host: read/write/verify on an USB stick** USB otg tested as Host: read/write/verify on an USB stick** uSD card: read/write/verify** ETH: iperf TCP test at 100M** NAND: stress test with mtd kernel modules
== Low-power configurations ==
136
edits