stm32f429 做U盘遇到的问题

liurui · 发表于 2021-5-27 09:26:55

正点原子的usb从机存储设备代码支持3种存储介质，我删掉spiflash和nandflash后，插到电脑无法识别usb。

#include "usbd_msc_mem.h"
#include "usb_conf.h"
#include "sdio_sdcard.h"


#define STORAGE_LUN_NBR                1
#define STORAGE_BLK_NBR                0x10000
#define STORAGE_BLK_SIZ                0x200

const int8_t  STORAGE_Inquirydata[] = {

  /* LUN 0 */
  0x00,
  0x80,
  0x02,
  0x02,
  (USBD_STD_INQUIRY_LENGTH - 5),
  0x00,
  0x00,
  0x00,
  'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */
  'P', 'r', 'o', 'd', 'u', 'c', 't', ' ', /* Product    : 16 Bytes */
  ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
  '0', '.', '0' ,'1'                   /* Version    : 4 Bytes */

};

int8_t STORAGE_Init (uint8_t lun);
int8_t STORAGE_GetCapacity (uint8_t lun,uint32_t *block_num,uint32_t *block_size);
int8_t  STORAGE_IsReady (uint8_t lun);
int8_t  STORAGE_IsWriteProtected (uint8_t lun);
int8_t STORAGE_Read (uint8_t lun,uint8_t *buf,uint32_t blk_addr,uint16_t blk_len);
int8_t STORAGE_Write (uint8_t lun,uint8_t *buf,uint32_t blk_addr,uint16_t blk_len);
int8_t STORAGE_GetMaxLun (void);

USBD_STORAGE_cb_TypeDef USBD_MICRO_SDIO_fops =
{
STORAGE_Init,
STORAGE_GetCapacity,
STORAGE_IsReady,
STORAGE_IsWriteProtected,
STORAGE_Read,
STORAGE_Write,
STORAGE_GetMaxLun,
(int8_t *)STORAGE_Inquirydata,
};
USBD_STORAGE_cb_TypeDef  *USBD_STORAGE_fops=&USBD_MICRO_SDIO_fops;//Ö¸ÏòUSBD_MICRO_SDIO_fops½á11ìå.

int8_t STORAGE_Init (uint8_t lun)
{
u8 res=0;
res=SD_Init();
return res;
}

int8_t STORAGE_GetCapacity (uint8_t lun, uint32_t *block_num, uint32_t *block_size)
{
*block_size=512;
*block_num=SDCardInfo.CardCapacity/512;
return 0;
}

int8_t  STORAGE_IsReady (uint8_t lun)
{
USB_STATUS_REG|=0X10;//±ê¼ÇÂÖÑˉ
return 0;
}

int8_t  STORAGE_IsWriteProtected (uint8_t lun)
{
return  0;
}

int8_t STORAGE_Read (uint8_t lun,uint8_t *buf,uint32_t blk_addr,uint16_t blk_len)
{
int8_t res=0;
USB_STATUS_REG|=0X02;//±ê¼ÇÕyÔú¶áêy¾Y
res=SD_ReadDisk(buf,blk_addr,blk_len);
if(res)
{
USB_STATUS_REG|=0X08;//¶á′íÎó!
}
return res;
}

int8_t STORAGE_Write (uint8_t lun,uint8_t *buf,uint32_t blk_addr,uint16_t blk_len)
{
int8_t res=0;
USB_STATUS_REG|=0X01;//±ê¼ÇÕyÔúD′êy¾Y
res=SD_WriteDisk(buf,blk_addr,blk_len);
if(res)
{
USB_STATUS_REG|=0X04;//D′′íÎó!
}
return res;
}

int8_t STORAGE_GetMaxLun (void)
{
return (STORAGE_LUN_NBR-1);
}

这是我的代码，哪里有问题