Clifford Slocombe wrote:
> Prashanth kumar wrote:
>> I am working with PXA270 processor. It takes nearly 40 ms to decode
>> one mp3 frame. I have enabled data cache as well as the instruction
>> cache. Please can you help me to reduce this decode time.
>> Prashanth kumar
> Have you configured the system clock and SDRAM controller/memory timing
> correctly? The chip will initialise at the crystal frequency (probably
> as low as 12MHz!), with lowest common denominator 'safe' memory timings.
> You configure and enable the clock multiplier and match the timings to
> the memory parts on your board.
The details regarding to the memory clock and run mode clock are ,
P15 C0 reg = 107c
ccsr = 3000030e,
cccr_a, = 2000000
clkcfg = 3
Run Mode clock: 182.0MHz (*14)
Turbo Mode clock: 546.0MHz (*3.0, active)
Memory clock: 91.0MHz (/2)