Char. LCD and 18F452 on 20 MHz not work


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  1. #1
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    Quote Originally Posted by skimask View Post
    Might want to also keep in mind that the PLL doesn't work above 10Mhz. The max speed of the PIC is 40Mhz (10 x 4xPLL). Try as you might, you won't get the PIC to run at 160Mhz! (It would be nice, but it won't work )
    160Mhz?
    Sorry i dont see.

    With 4 MHz and PLL 4X4 = 16 MHz.
    20 MHz is without PLL. This osc conf. is XT.

  2. #2
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    Quote Originally Posted by samettin View Post
    160Mhz?
    Sorry i dont see.

    With 4 MHz and PLL 4X4 = 16 MHz.
    20 MHz is without PLL. This osc conf. is XT.
    Thought you said it was set for HS. XT will not work. Me thinks.
    Dave
    Always wear safety glasses while programming.

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