Thread: PRS-650 sony prs-650 processor
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Old 09-29-2010, 10:21 PM   #12
zcqsimon
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Posts: 19
Karma: 472020
Join Date: Sep 2010
Device: sony
Quote:
Originally Posted by igorsk View Post
From the dmesg:
Code:
CPU is i.MX31 Revision 2.0
Clock input source is 26000000
It's possible that it's not the actual CPU clock speed. The CPU has DVFS (dynamic voltage and frequency scaling) so it can run at varying speeds. Here's the output of cat /sys/devices/system/dvfs/dvfs0/status for PRS-900:
Code:
DVFS is enabled
clock = [266000000Hz]
UP:     0       1       1       5
DOWN:   8       7       6       0
Update 532MHz(7) 399MHz(8) 266MHz(13) 133MHz(0)
intr fsvai-err:0 wrong-err:0
(I don't have a 350/650 right now to compare)


The CPU is rated 532MHz. It doesn't mean it's running at that speed all the time.
thanks, it's real technical post, when the prs-650 arrives, I'd like to check it.
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