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MSP430FR6047: MCLK提高到16MHz后,不能与设计中心正常通讯

Part Number: MSP430FR6047
Other Parts Discussed in Thread: EVM430-FR6047,

在EVM430-FR6047开发板中,我将MSP430fr6047芯片的主频MCLK修改为16MHz后,板子不能与设计中心正常通讯。我选择的通讯接口是I2C接口。我希望将主频提高以提高运算速率,但是又能够保持与设计中心正常通讯,有什么办法能做到吗?