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CSKEY，CSCTL0，CSCTL1，CSCTL2这些寄存器我是在官方的用户指南中找到的，但是在写程序的过程中，CCS报错，提示库中没有这些寄存器.希望得到各位大神的解答。感谢
请您参考SDK内的方式书写（simplelink_msp432p4_sdk_3_40_00_05\examples\nortos\MSP_EXP432P401R\registerLevel\msp432p401x_cs_01）
CS->KEY = CS_KEY_VAL; // Unlock CS module for register access // Select ACLK = REFO, SMCLK = MCLK = DCO CS->CTL1 = CS_CTL1_SELA_2 | CS_CTL1_SELS_3 | CS_CTL1_SELM_3;
