Posted on November 06, 2014 at 09:07
Hello! I want to implement a dual DFU (Internal flash and SPI flash) on new STM32Cube USB Library.
I've modified usbd_conf.h:
/* DFU Class Config */
#define USBD_DFU_MAX_ITF_NUM 2
I've created a new file usbd_dfu_sflash.c and described there a new device:
#define SFLASH_DESC_STR ''@SPI Flash: M25P64 /0x00000000/128*064Kg''
/* Extern function prototypes ------------------------------------------------*/
uint16_t sFlash_If_Init(void);
uint16_t sFlash_If_Erase(uint32_t Add);
uint16_t sFlash_If_Write(uint8_t *src, uint8_t *dest, uint32_t Len);
uint8_t *sFlash_If_Read(uint8_t *src, uint8_t *dest, uint32_t Len);
uint16_t sFlash_If_DeInit(void);
uint16_t sFlash_If_GetStatus(uint32_t Add, uint8_t Cmd, uint8_t *buffer);
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
__ALIGN_BEGIN USBD_DFU_MediaTypeDef USBD_DFU_sFlash_fops __ALIGN_END = {
(uint8_t*) SFLASH_DESC_STR,
sFlash_If_Init,
sFlash_If_DeInit,
sFlash_If_Erase,
sFlash_If_Write,
sFlash_If_Read,
sFlash_If_GetStatus,
};
And run in main.c this sequence:
/* Otherwise enters DFU mode to allow user to program his application */
/* Init Device Library */
USBD_Init(&hUSBDDevice, &DFU_Desc, 0);
/* Add Supported Class */
USBD_RegisterClass(&hUSBDDevice, &USBD_DFU);
/* Add DFU Media interface */
USBD_DFU_RegisterMedia(&hUSBDDevice, &USBD_DFU_Flash_fops);
/* Add DFU Media Serial Flash interface */
USBD_DFU_RegisterMedia(&hUSBDDevice, &USBD_DFU_sFlash_fops);
/* Start Device Process */
USBD_Start(&hUSBDDevice);
And now I see in DfuSe Demo only a two lines:
00 SPI Flash:M25P64 128 sectors...
01 SPI Flash:M25P64 128 sectors...
