#include"usbmp3.h"#include"led.h"#include"delay.h"//MP3模块初始化voidusbmp3_Init(void){GPIO_InitTypeDefGPIO_InitStructure;//mp3u盘en使能脚初始化RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);//使能PA,PD端口时钟GPIO_InitStructure.GPIO_Pin=GPIO_Pin_3;//LED0-->PB.9GPIO_InitStructure.