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Re: 关于OSCTUNE设置问题
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版主
 
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在 PIC18F97J60 Dats Sheet 裡的 Page 41 (TABLE 2-2: DEVICE CLOCK SPEEDS FOR VARIOUS PLL BLOCK CONFIGURATIONS) 裡有提示表，假設使用 25MHz 的 HS Mode 主振盪頻率，依照表格所示其輸出頻率為 41.6667MHz (Vdd @2.7V ~ 3.5)，這也是該元件最高的工作頻率。參考Page 414 頁 (第 27.0 ELECTRICAL CHARACTERISTICS) 的 Freg. vs Vcc 的圖形。
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發表於: 2009/12/28 10:31
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关于OSCTUNE设置问题
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資深會員
 
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小弟用P18F97J60 TCPIP STACK中 OSCTUNE=0X40请教CPU频率是5X25(MHZ)吗，还是以太网为25MHZCPU为25X5=75MHZ谢谢
發表於: 2009/12/27 23:16
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