HARDKERNEL ODROID-C1, Руководство пользователя

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14
ODROID C1 USER MANUAL
Temperature Measurement
To help verify that the heatsink was correctly installed, it is useful
to get temperature readings before and after installation. The proces-
sor’s built-in sensor can be used for this. It would be ideal to have
the processor working under the same load when the temperatures
for before and after heatsink installation are taken. It is assumed that
your unit has been through the initial setup procedure and is running
the Ubuntu image from Hardkernel.
• Open two terminal windows, where one window will be used to run
the application used to test the processor. Ensure that there are no
other programs or applications being run.
• In the first terminal window, type in the following command:
$ sysbench --test=cpu --num-threads=4 \
--cpu-max-prime=1000000000
• After waiting at least 5 minutes, type the following into the second
window:
$ cat /sys/class/thermal/thermal_zone0/temp
• This result is in Celsius if it has 2 digits. If it has 5 digits that value
should be divided by 1000 to get the temperature in Celsius.
• Re-type the command to get the temperature every few minutes until
the temperature no longer increases.
• Record the temperature.
This procedure should be done both before and after the heatsink in-
stallation to help verify that the installation was done correctly.
Frequently Asked Questions
What’s an ODROID?
ODROID means Open + Android. It is a development platform with
hardware as well as software.
What SoC are you using?
The SoC is an Amlogic S805 quad-core.
Chapter 1