Provisioning via CANFD bootloader and RSS.

[Konstantin_Z]

Hello!
I am trying to provision a DA certificate on STM32H563 through CANFD Bootloader in system memory.

I am calling special function 0x83 as described in AN2606 and AN5405. As I can understand, this is an RSSLIB_PFUNC->DataProvisioning.
I am filling the structure and place it to the SRAM3. See the picture/hex.

typedef struct {
 uint32_t *pSource;
 uint32_t *pDestination;
 uint32_t Size;
 uint32_t DoEncryption;
 uint32_t Crc;
} RSSLIB_DataProvisioningConf_t;

The structure is placed in 0x2005C000
The 0x60 bytes of the obk payload is placed in 0x2005C000.
The fuction returns Error code 0xF5F58080 (CRC Error).

I've tried several algorythms, byte-reversal, but could not get it worked.
I tried to find an example of using this function, but without success.

So, I am asking for some code example showing this function.

Maybe I need to prepare data somehow. Or add another data in crc calculations.

Thanks!

 

 

[Konstantin_Z]

Check the attachment.
This script

• opens an obk file (I tested it with standard ST obk files) shows the right CRC.
• extracts payload ,  destination address and payload size from obk file
•  calculates right CRC for the  RSSLIB_DataProvisioningConf_t
• makes 2 sets of slCan commands:
  • write data block in the SRAM3
  • write struct in the SRAM3

After these commands are sent I send folowing slCan sequence to perform a Provisioning:
b05020083 
b05020004 
b05042005C060 

This works for my STM32H563 even in Open product state.
You can port this commands to your CANFD adapter-compatible language.