STM32ProgrammerCLI + External Loader + USB DFU problem

[RZahor]

Hi,

I have a project with an external loader. When programming using ST-LinkV2 (SWD) it works perfectly with CubeIDE or the STM32Programmer CLI.

When trying programming the same ELF file using USB DFU connection, I get the following message, and the program exits:

"c:\program files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin\STM32_Programmer_CLI.exe" --connect port=usb1 --extload "C:\Repos\External Loader\N25Q128A_STM32F7.stldr" --download "Controller.elf" --skipErase -vb 3
 -------------------------------------------------------------------
 STM32CubeProgrammer v2.9.0
 -------------------------------------------------------------------
 
 
 
Device Descriptor:
 |_bLength : 0x12
 |_bDescriptorType : 0x01
 |_bcdUSB : 0x0100
 |_bDeviceClass : 0x00
 |_bDeviceSubClass : 0x00
 |_bDeviceProtocol : 0x00
 |_bMaxPacketSize : 0x40
 |_idVendor : 0x0483
 |_idProduct : 0xdf11
 |_bcdDevice : 0x2200
 |_iManufacturer : 0x01
 |_iProduct : 0x02
 |_iSerialNumber : 0x03
 |_bNumConfigurations : 0x01
Configuration Descriptor:
 |_bLength : 0x09
 |_bDescriptorType : 0x02
 |_wTotalLength : 0x36
 |_bNumInterfaces : 0x01
 |_bConfigurationValue : 0x01
 |_iConfiguration : 0x00
 |_bmAttributes : 0xc0
 |_bMaxPower : 0x32
Interface Descriptor Alternate Settings: 0x00
 |_bLength : 0x09
 |_bDescriptorType : 0x04
 |_bInterfaceNumber : 0x00
 |_bAlternateSetting : 0x00
 |_bNumEndpoints : 0x00
 |_bInterfaceClass : 0xfe
 |_bInterfaceSubClass : 0x01
 |_bInterfaceProtocol : 0x02
 |_iInterface : 0x04
Interface Descriptor Alternate Settings: 0x01
 |_bLength : 0x09
 |_bDescriptorType : 0x04
 |_bInterfaceNumber : 0x00
 |_bAlternateSetting : 0x01
 |_bNumEndpoints : 0x00
 |_bInterfaceClass : 0xfe
 |_bInterfaceSubClass : 0x01
 |_bInterfaceProtocol : 0x02
 |_iInterface : 0x05
Interface Descriptor Alternate Settings: 0x02
 |_bLength : 0x09
 |_bDescriptorType : 0x04
 |_bInterfaceNumber : 0x00
 |_bAlternateSetting : 0x02
 |_bNumEndpoints : 0x00
 |_bInterfaceClass : 0xfe
 |_bInterfaceSubClass : 0x01
 |_bInterfaceProtocol : 0x02
 |_iInterface : 0x06
Interface Descriptor Alternate Settings: 0x03
 |_bLength : 0x09
 |_bDescriptorType : 0x04
 |_bInterfaceNumber : 0x00
 |_bAlternateSetting : 0x03
 |_bNumEndpoints : 0x00
 |_bInterfaceClass : 0xfe
 |_bInterfaceSubClass : 0x01
 |_bInterfaceProtocol : 0x02
 |_iInterface : 0x07
Functional Descriptor :
 |_bLength : 0x09
 |_bDescriptorType : 0x21
 |_bmAttributes : 0x0b
 |_wDetachTimeOut : 0xff
 |_wTransferSize : 0x0800
 |_bcdDFUVersion : 0x011a
USB speed : Full Speed (12MBit/s)
Manuf. ID : STMicroelectronics
Product ID : STM32 BOOTLOADER
SN : 00000008FFFF
FW version : 0x011a
Board : --
Device ID : 0x0449
DFU status = 0
DFU State = 9
Status: 0, State: 9
sending an abort request
DFU status = 0
DFU State = 2
setting the address pointer to address: 0x08000000
data: 2100000008
DFU status = 0
DFU State = 4
DFU status = 0
DFU State = 5
data: 2100000008
Loading Secondary Boot Loader into RAM
 
Loading Secondary Boot Loader into RAM ...

Does someone have any idea what went wrong? It looks like the external loader fails to load over USB DFU connection, but no error message is shown.

Any help will be appreciated,

Roy

[RZahor]

Using the STM32CubeProgrammer GUI version, I get the attached log file

[CRich.4]

i think i have the same problem.

External loader is working perfectly via SWD, but not via USB

I was using STM32CubeProgrammer v2.15.0

[Tesla DeLorean]

USB-DFU doesn't support External Loaders, the approach you're supposed to take is have your own DFU implementation that supports the features and functions of your board directly, so STM32 Cube Programmer can push a DFU file's content to the addresses you're put in it, and support with your target side implementation.

Not going to work with UART system loader either.

In your own programming app you could stage a loader in RAM that then supported whatever protocol / memory you want to support at the next stage of the upload process..

[CRich.4]

thanks for your reply.

 

I was wondering if USB-DFU + external loader is even supported, but didn't find any documentation about that.

Thanks for your clarification.

[Pavel A.]

12:12:35:367 : setting the address pointer to address: 0x90000000
.......
12:12:35:898 : received memory address is wrong or unsupported
12:12:35:898 : Status: errTARGET, State: dfuERROR
12:12:35:899 : Error: failed to download Segment[1]

You're trying to load content into external memory.