sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

configs/lc823450-xgevk: Update README.txt

Browse Source 
Add notes on DVFS (Dynamic Voltage and Frequencey Scaling)

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This commit is contained in:
Masayuki Ishikawa 2018-01-10 15:36:16 +09:00
parent 7460773d7b
commit ea19abd291
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
configs/lc823450-xgevk/README.txt
View File

@ -248,6 +248,26 @@ nsh> route
SEQ TARGET NETMASK ROUTER
1. 0.0.0.0 0.0.0.0 192.168.1.1
12. DVFS (Dynamic Voltage and Frequency Scaling)
lc823450-xgevk/audio and rndis configurations support DVFS.
You can check the status via /proc/dvfs
nsh> cat /proc/dvfs
cur_freq 160
enable 0
By default, DVFS is disabled. To enable,
nsh> echo "enable 1" > /proc/dvfs
In addition, you can change CPU frequency to 160/80/40. To change the
frequency, enable the DVFS first then do the following.
nsh> echo "cur_freq 80" > /proc/dvfs.
Currently, DVFS works in manual mode and Vdd1 is fixed to 1.2V
which will be changed in the future version.
TODO
^^^^