stm32 USB CDC代码可以与电脑通信附stm32_vcp官方虚拟串口驱动 -

/* Includes ------------------------------------------------------------------*/
#include "usart.h"
#include "delay.h"
#include "usbd_cdc_core.h"
#include "usbd_usr.h"
#include "usb_conf.h"
#include "usbd_desc.h"
#include "usbd_cdc_vcp.h"
#include "usb_dcd_int.h"
__ALIGN_BEGIN USB_OTG_CORE_HANDLE USB_OTG_dev __ALIGN_END ;
int main(void)
{
u8 dat[12] = {"Hello world"};
__IO uint32_t i = 0;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(168); //初始化延时函数
uart_init(115200); //初始化串口波特率为115200
printf("Hello world!\r\n");
USBD_Init(&USB_OTG_dev,
USB_OTG_FS_CORE_ID,
&USR_desc,
&USBD_CDC_cb,
&USR_cb);
/* Main loop */
while (1)
{
if(USB_RecvieCount){
printf("RecDatalen:%d Start TxData\r\n",USB_RecvieCount);
APP_FOPS.pIf_DataTx(dat, 12);
USB_RecvieCount = 0;
}
delay_ms(500);
printf("USB_RecvieCount:%x\r\n",USB_RecvieCount);
}
}

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