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Changing the PLL multipilier of DM6437

ayhan_kucukmanisa
Intellectual 560 points

Hi,

my problem is when i set PLL1_PLLM at beginning of the  main program file like this PLL1_PLLM = 0x00000026, i saw that my fps is 30 but my video look like 10 or 15 fps. but when i set PLL1_PLLM = 0x00000010 then measure fps i saw that my fps is 25 and video how is must be at 25 fps. Logically i have to see 25 fps at PLL1_PLLM = 0x00000026 but what is my wrong or what im missing?

 

  • 0
    Genius 3575 points

    I know that you previously had tacked this question onto another thread and that Zheng suggested you start your own thread to get an answer, but this post by itself is almost completely incomprehensible.  The only thing I can gather is that you are doing some kind of video processing and that you need to get a faster throughput.  Increasing your core frequency by increasing the pll multiplier is only going to get you a linear improvement, and if you are running in excess of 700 MHz you are operating outside the recommended range for any speed grade of the dm6437.

    There are lots of resources on how to speed up video processing, but you are going to need to do a better job describing your situation before anyone can make a specific recommendation.