stm32f4 dfu

[winman]

Posted on December 20, 2013 at 16:22

I'm working on a dfu bootloader for stm32 (f4) devices (

https://github.com/swinman/dfu-programmer

 stm32 branch).  I'm using the stm32f407vg and have gotten everything working except the read operation.  When I call DFU_DNLOAD with wValue 2 and length 2048 I get a pipe error.  DFU_DNLOAD works fine for the GET operation (wValue is 0) so at least I know that works..  Does anyone know that the DFU_DNLOAD for a read operation actually works on these devices?  I've pasted the enumeration details below (which should contain the bootloader version).Bus 002 Device 015: ID 0483:df11 SGS Thomson Microelectronics STM Device in DFU ModeDevice Descriptor:  bLength                18  bDescriptorType         1  bcdUSB               1.00  bDeviceClass            0 (Defined at Interface level)  bDeviceSubClass         0   bDeviceProtocol         0   bMaxPacketSize0        64  idVendor           0x0483 SGS Thomson Microelectronics  idProduct          0xdf11 STM Device in DFU Mode  bcdDevice           22.00  iManufacturer           1 STMicroelectronics  iProduct                2 STM32  BOOTLOADER  iSerial                 3 354B386A3133  bNumConfigurations      1  Configuration Descriptor:    bNumInterfaces          1    bConfigurationValue     1    iConfiguration          0     bmAttributes         0xc0      Self Powered    MaxPower              100mA    Interface Descriptor:      bLength                 9      bDescriptorType         4      bInterfaceNumber        0      bAlternateSetting       0      bNumEndpoints           0      bInterfaceClass       254 Application Specific Interface      bInterfaceSubClass      1 Device Firmware Update      bInterfaceProtocol      2       iInterface              4 @Internal Flash  /0x08000000/04*016Kg,01*064Kg,07*128Kg    Interface Descriptor:      bLength                 9      bDescriptorType         4      bInterfaceNumber        0      bAlternateSetting       1      bNumEndpoints           0      bInterfaceClass       254 Application Specific Interface      bInterfaceSubClass      1 Device Firmware Update      bInterfaceProtocol      2       iInterface              5 @Option Bytes  /0x1FFFC000/01*016 e    Interface Descriptor:      bLength                 9      bDescriptorType         4      bInterfaceNumber        0      bAlternateSetting       2      bNumEndpoints           0      bInterfaceClass       254 Application Specific Interface      bInterfaceSubClass      1 Device Firmware Update      bInterfaceProtocol      2       iInterface              6 @OTP Memory /0x1FFF7800/01*512 e,01*016 e    Interface Descriptor:      bLength                 9      bDescriptorType         4      bInterfaceNumber        0      bAlternateSetting       3      bNumEndpoints           0      bInterfaceClass       254 Application Specific Interface      bInterfaceSubClass      1 Device Firmware Update      bInterfaceProtocol      2       iInterface              7 @Device Feature/0xFFFF0000/01*004 e      Device Firmware Upgrade Interface Descriptor:        bLength                             9        bDescriptorType                    33        bmAttributes                       11          Will Detach          Manifestation Intolerant          Upload Supported          Download Supported        wDetachTimeout                    255 milliseconds        wTransferSize                    2048 bytes        bcdDFUVersion                   1.1aDevice Status:     0x0001  Self Powered #stm32-dfu-bootloader-usb-stm32f4

[Tesla DeLorean]

Sorry, bumping very old zombie unanswered questions off my feed