* File Name : stm32f10x_rcc.h
line 220
#define RCC_FLAG_HSIRDY ((u8)0x20)
#define RCC_FLAG_HSERDY ((u8)0x31)
#define RCC_FLAG_PLLRDY ((u8)0x39)
其中有这样的应用:
/* Get the flag position */
tmp = RCC_FLAG & FLAG_Mask;/* FLAG_Mask = 0x1F */
与上面三个值对应的是:
RCC_FLAG_HSIRDY 0x20 &0x1F = 0x00(0);
RCC_FLAG_HSERDY 0x31 &0x1F = 0x11(17);
RCC_FLAG_PLLRDY 0x39 &0x1F = 0x19(25);
这与reference manual有冲突.看图:
应该是:
#define RCC_FLAG_HSIRDY ((u8)0x21)
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楼主
