本帖最后由 wzl 于 2019-5-21 22:03 编辑
[mw_shl_code=applescript,true]#define PLL_M 25
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 7
#define PLL_N 336
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 4
uint32_t SystemCoreClock = 84000000;[/mw_shl_code]
这样的设置单片机正常运行,但是下面这样,就会初始化失败是怎么回事?
[mw_shl_code=applescript,true]#define PLL_M 8
#define PLL_Q 4
#define PLL_N 192
#define PLL_P 2
uint32_t SystemCoreClock = 96000000;
[/mw_shl_code]
stm32f411单片机,我自己画的最小系统,难道是我电路板没设计好?
咋回事啊。。各位大佬~
谢谢~
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