The SBSFU porting of STM32G431C8

[PSui.1]

Due to cost constraints, only STM32G431x8 (64K byte flash memory) can be used, but there is no sample source code for G431x8 in the SBSFU library. I tried to port such a project, but I was a little confused.

1. The compilation of the 1_Image_SBSFU project of NUCLEO-G474RE is close to 50K bytes, which is not acceptable. But UM2262 didn't teach me how to delete some functions to reduce the size.

2. Maybe I can use NUCLEO-G031K8 to port, because its 1_Image_SBSFU project compiles only 36K bytes, but it is m0 core so I ca n’t determine whether it can be ported.

Any suggestions are greatly appreciated!

[PSui.1]

Due to the different architectures of the core, flash ROM (single bank / dual bank), RAM (with or without CCMSRAM), it seems that it cannot be easily ported