改了一下时钟，没有配置FLASH，直接设置成了48Mhz之后芯片就不能仿真，不能下载程序了，求解
CORTEX_M4_0: Flash Programmer: Reading device TLV failed.
CORTEX_M4_0: Error initializing flash programming: Your XMS432P401R material is no longer supported. We recommend you moving to production-quality MSP432P401R/M silicon by ordering samples at www.ti.com/product/MSP432P401R.
