请问F411 CubeMX时钟符合最大50MHZ要求的配置为什么会不通过？

不懂，帮顶。。。

本帖最后由 nyszx 于 2015-7-10 13:40 编辑

刚才仔细看了F411手册，似乎没问题呀

又看了STM32F4XX中文参考手册，变成了

我看手册写的：42xx的如下
Several prescalers are used to configure the AHB frequency, the high-speed APB (APB2)
and the low-speed APB (APB1) domains. The maximum frequency of the AHB domain is
180 MHz. The maximum allowed frequency of the high-speed APB2 domain is 90 MHz. The
maximum allowed frequency of the low-speed APB1 domain is 45 MHz
405xx和415xx如下：
Several prescalers are used to configure the AHB frequency, the high-speed APB (APB2)
and the low-speed APB (APB1) domains. The maximum frequency of the AHB domain is
168 MHz. The maximum allowed frequency of the high-speed APB2 domain is 84 MHz. The
maximum allowed frequency of the low-speed APB1 domain is 42 MHz

英文手册里面有2个对于RCC的介绍章节，不同系列不一样。

参考官网DM00115249.pdf手册 是这样写的

下载最新的。

STM32CubeMX软件V4.8.0
STM32CubeF4固件包V1.6.0

没问题

没用CubeMX，帮顶一下

顶 一下，更新库吧

帮顶