Hello, @lion_6
Thanks for your reply.
The cmm file you referenced is a simple attaching operation, if the binary you flashed to the QSPI could run correctly, then this attach operation could be generally run without issues.
A possible reason is that with the board version, would you mind checking your board version of RDB2/EVB used? The bootloader from Integration_Reference_Examples_S32G2_2023_06 is developed and tested under:
chenyin_h_0-1757901927302.png
If using the newer version board like RDB2REVE, I suggest trying bootloader from GoldVIP1.1x for your reference.
BR
Chenyin