2013-12-20 07:22 AM
I'm working on a dfu bootloader for stm32 (f4) devices (
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-stm32f42018-08-09 09:51 PM
Sorry, bumping very old zombie unanswered questions off my feed