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tm4c123gxl的时钟配置

wenfei tong
Prodigy 10 points


使用SysCtlClockSet(SYSCTL_SYSDIV_2_5 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ | SYSCTL_OSC_MAIN);怎么不能讲tm4c123gxl主频设为80MHz，使用SysCtlClockGet（）得到的数值是66.7MHz，请问怎么设置将主频设为80MHz！！！