从官网下的库，执行stm32f4xx_cryp_aes.c文件中ErrorStatus CRYP_AES_CBC()到 if(CRYP_GetCmdStatus() == DISABLE)直接跳出，看解释：/* The CRYP peripheral clock is not enabled or the device doesn't embed the CRYP peripheral (please check the device sales type. */，我用的芯片是STM32F427IGTB,查了数据手册，是带有硬件加密功能的，时钟也开启了，为什么会失败呢？
