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IIC Slew rate 設定問題
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初級會員
 
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想請問IIC狀態暫存器SSPSTAT bit7 SMP設定的問題
我是使用PIC16F87X 看datasheet上 bit 7 SMP: Slew Rate Control bit In Master or Slave mode: 1 = Slew rate control disabled for standard speed mode (100 kHz and 1 MHz) 0 = Slew rate control enabled for high-speed mode (400 kHz) 有個疑問 如果傳輸速率不是剛好在100kHz, 1MHz, 400kHz 那應該要如何設定比較恰當？ 我自己測試是有用PIC對PIC測試過，ok 現在因為要用arm傳資料給pic 時脈設定沒辦法恰好是100kHz，400kHz和1MHz 比如說200多kHz，300多kHz等 想請問說要如何設定比較正確 感謝~
發表於: 2009/10/28 12:29
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