Re: How to enable the Epiphany low power mode
Posted:
Thu Mar 06, 2014 4:16 pm
by ubii
aolofsson,
When I attempt to enable the Epiphany low power mode using the github version, I get the following error message:
sudo: bin/lowpower-mode.elf: command not found
If I use the version that was included in the default image, located in /home/linaro/Parallella/epiphany-examples/clockgating_mode, it works, as the necessary elf exists.
The following files exist in /home/linaro/Parallella/epiphany-examples/clockgating_mode/bin, but do not exist in the github version after running the build.sh script:
e-lowpower-mode.elf
e-lowpower-mode.srec
e_link_lowpower_mode.elf
e_link_lowpower_mode.srec
link_lowpower_mode.elf
lowpower-mode.elf
Obviously, I can used the provided version that was part of the default image, but I would like to get the github version working, as well. Also, once low power mode has been enabled, what is the best way to confirm that it is in fact enabled?
Re: How to enable the Epiphany low power mode
Posted:
Wed Mar 26, 2014 9:48 pm
by aolofsson
Thanks for finding the error. Fixed in github repo!
You would see the power savings if you have a way of measuring the current from the 5V supply.
Re: How to enable the Epiphany low power mode
Posted:
Thu Mar 27, 2014 2:18 pm
by ubii
aolofsson,
Do you have any examples of before and after readings that we can use as a basis for comparison?