Difference between revisions of "Thermal tests and measurements (SBCX)"
| Line 26: | Line 26: | ||
*SBCX equipped iMX6 Dual Lite processor (maximum frequency = TBD) and 1GB SDRAM | *SBCX equipped iMX6 Dual Lite processor (maximum frequency = TBD) and 1GB SDRAM | ||
*LCD TBD. | *LCD TBD. | ||
| − | + | Settings common to all test beds: | |
| − | *Linux governor: | + | *SBCX supply voltage: 12V |
| + | *Linux governor: TBD | ||
*LCD backlight intensity: 100% | *LCD backlight intensity: 100% | ||
| + | *software load [1] | ||
| + | ** TBD. | ||
* test bed #1 | * test bed #1 | ||
| Line 50: | Line 53: | ||
**system layout - SBCX | **system layout - SBCX | ||
tbd inserire foto | tbd inserire foto | ||
| − | |||
==Results== | ==Results== | ||
| − | === | + | *test bed #1 |
| + | **overall power consumption (steady state): TBD [1] | ||
| + | **SOM power consumption (steady state): TBD [1] | ||
| + | **Tj = TBD °C | ||
| + | **∆T = Tj - Tamb = TBD °C | ||
| + | *test bed #2 | ||
| + | **overall power consumption (steady state): TBD [1] | ||
| + | **SOM power consumption (steady state): TBD [1] | ||
| + | **Tj = TBD °C | ||
| + | **∆T = Tj - Tamb = TBD °C | ||
| + | *test bed #3 | ||
| + | **overall power consumption (steady state): TBD [1] | ||
| + | **SOM power consumption (steady state): TBD [1] | ||
| + | **Tj = TBD °C | ||
| + | **∆T = Tj - Tamb = TBD °C | ||
| + | *test bed #4 | ||
| + | **overall power consumption (steady state): TBD [1] | ||
| + | **SOM power consumption (steady state): TBD [1] | ||
| + | **Tj = TBD °C | ||
| + | **∆T = Tj - Tamb = TBD °C | ||
| + | *test bed #5 | ||
| + | **overall power consumption (steady state): TBD [1] | ||
| + | **SOM power consumption (steady state): TBD [1] | ||
| + | **Tj = TBD °C | ||
| + | **∆T = Tj - Tamb = TBD °C | ||
| − | |||
| − | |||
| − | |||
| − | |||
| + | [1] Even if the software load is the same for all of the test beds, overall and SOM power consumptions differ accross the test beds. This is due to the silicon static power consumption that is a function of the temperature itself. | ||
==Useful links== | ==Useful links== | ||
*[[Power management (Axel)]] | *[[Power management (Axel)]] | ||
Revision as of 17:11, 10 October 2016
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History[edit | edit source]
| Version | Date | Notes |
|---|---|---|
| First public release |
Introduction[edit | edit source]
This document describes the tests that have been performed on SBCX board to characterize thermal behavior of some configurations. The results here presented can be used by integrators building systems upon SBCX board as a basis for comparison. In fact, as stated in the SBCX's Hardware Manual, systems integrators have to perform thermal analysis on the application's definitive configuration that generally differs significantly with respect to the use cases here described, in terms of both hardware and software.
Test beds[edit | edit source]
Five different test beds have been considered. From the electronics point of view, all of them are based on the following parts:
- SBCX equipped iMX6 Dual Lite processor (maximum frequency = TBD) and 1GB SDRAM
- LCD TBD.
Settings common to all test beds:
- SBCX supply voltage: 12V
- Linux governor: TBD
- LCD backlight intensity: 100%
- software load [1]
- TBD.
- test bed #1
- Tamb = TBD °C
- system layout - SBCX
tbd inserire foto
- test bed #2:
- Tamb = TBD °C
- system layout - SBCX
tbd inserire foto
- test bed #3:
- Tamb = TBD °C
- system layout - SBCX
tbd inserire foto
- test bed #4:
- Tamb = TBD °C
- system layout - SBCX
tbd inserire foto
- test bed #5:
- Tamb = TBD °C
- system layout - SBCX
tbd inserire foto
Results[edit | edit source]
- test bed #1
- overall power consumption (steady state): TBD [1]
- SOM power consumption (steady state): TBD [1]
- Tj = TBD °C
- ∆T = Tj - Tamb = TBD °C
- test bed #2
- overall power consumption (steady state): TBD [1]
- SOM power consumption (steady state): TBD [1]
- Tj = TBD °C
- ∆T = Tj - Tamb = TBD °C
- test bed #3
- overall power consumption (steady state): TBD [1]
- SOM power consumption (steady state): TBD [1]
- Tj = TBD °C
- ∆T = Tj - Tamb = TBD °C
- test bed #4
- overall power consumption (steady state): TBD [1]
- SOM power consumption (steady state): TBD [1]
- Tj = TBD °C
- ∆T = Tj - Tamb = TBD °C
- test bed #5
- overall power consumption (steady state): TBD [1]
- SOM power consumption (steady state): TBD [1]
- Tj = TBD °C
- ∆T = Tj - Tamb = TBD °C
[1] Even if the software load is the same for all of the test beds, overall and SOM power consumptions differ accross the test beds. This is due to the silicon static power consumption that is a function of the temperature itself.
