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#define HWREG16(x) \ (*((volatile uint16_t*)((uint16_t)x))) 是什么意思？
你好，参考下这边帖子中的解释：
http://www.deyisupport.com/question_answer/microcontrollers/msp430/f/55/p/83589/211211.aspx#211211
这是一种常用的直接操作指定地址寄存器的方法。
