Where is the BIOS code entry point of the fs44b0x board of Yilong? How to search?

This BIOS CodeIt consists of three assembly files and a bunch of C files. ProgramWe only need to find which source file contains the main function and it will be OK. How can we find the BIOS code?

First, the entry point should be in the Assembly file. To run a C language program, you must use the assembly to prepare the stack, entry parameters, and other environments. Otherwise, the program cannot run.

After studying the project's MCP file, we found that in the settings (debugrel_bin settings) of the project, there is such a link parameter in the arm linker item:-first vector. O (reset). This parameter indicates the vector. the reset section of O is placed at the beginning of the entire image. In this way, the first executed command is the first line of the reset assembly code, which is OK, the original entry point is vector. s reset this code segment, and then look back at the vector. the reset code in S confirms this point:

; **************************************** **************
Area reset, code, readonly

Entry

Export _ entry
_ Entry
Resetentry
B sys_rst_handler
B udf_ins_handler
B swi_svc_handler
B ins_abt_handler
B dat_abt_handler
B.
B irq_svc_handler
B fiq_svc_handler

; **************************************** **************

The above also shows that if you want to reset, resetentry will also start from here.

I think the method for viewing the entry points of the Code is the same even if I change the block board. Check the compilation/link options.