我的晶振是16M的,请问按这个配置出来我的时钟是48M还是72M呢?我自己太菜,自己认为是72M运行时
时钟也是准的,但是手册上写的最高48M,迷糊了
RCU_CFG0=RCU_PLLSRC_HXTAL | RCU_PLL_MUL9 | RCU_CFG0_PLLPREDV;
RCU_CFG0 |= RCU_APB2_CKAHB_DIV1;
RCU_CFG0 |= RCU_APB1_CKAHB_DIV1;
RCU_CFG0 &= ~(RCU_CFG0_PLLSEL | RCU_CFG0_PLLMF | RCU_CFG0_PLLDV);
RCU_CFG0 |= (RCU_PLLSRC_HXTAL | RCU_PLL_MUL9); |