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PIC18F系列IC如何切換時鐘源？
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新會員
 
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我用的PIC18F45J10,看手冊上說PIC18F系列基本都可以通過OSCCON中的SCS1:SCS1來切換時鐘源。我現在想正常的時候使用外置時鐘源全速運行，到夜間后切換到INTRC用內部時鐘源低速運行。
但是在MPLAB SIM仿真中發現SCS1:SCS0無法被更改，在Proteus中也是同樣無法更改，不知道問題出在哪裡。 我用的MPLAB 8.30和MCC18 3.34，配置如下 #pragma config DEBUG = OFF #pragma config XINST = OFF #pragma config STVREN = OFF #pragma config WDTEN = OFF #pragma config CP0 = OFF #pragma config FCMEN = ON #pragma config IESO = ON #pragma config FOSC2 = ON #pragma config FOSC = HS #pragma config WDTPS = 1 #pragma config CCP2MX = DEFAULT 希望有做過類似應用的的大大幫忙看看問題出在哪裡，感恩。
發表於: 2009/11/10 11:30
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