今天板子刚到，新建的第一个工程就报错了。
.\Objects\cse.sct(7): error: L6236E: No section matches selector - no section to be FIRST/LAST.
网上查了一下说什么启动文件没添加，可是他们都没说在哪添加启动文件，我第一次搞这个我也不知道。
这时我在*里搜到了这个问题。
题主遇到的问题和我遇到的一样，然后下边有答主这样说：
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There is no 'FIRST' object in your source code. Your scatter file likely looks something like:
LR_IROM1 0x08000000 0x00040000 { ; load region size_region
ER_IROM1 0x08000000 0x00040000 { ; load address = execution address
*.o (RESET, +First)
*(InRoot$$Sections)
.ANY (+RO)
}
RW_IRAM1 0x20000000 0x0000A000 { ; RW data
.ANY (+RW +ZI)
}
The _FIRST object that the linker wants to put into the image is the area called RESET. You do not have a RESET region in your code. Add something along the lines of
AREA RESET, DATA, READONLY
to your assembly file where you want execution to begin.
Create a project with the startup file and look for the AREA RESET ..... declaration and copy that.
For Cortex it looks like:
AREA RESET, DATA, READONLY
EXPORT __Vectors
EXPORT __Vectors_End
EXPORT __Vectors_Size
__Vectors DCD __initial_sp ; Top of Stack
DCD Reset_Handler ; Reset Handler
DCD NMI_Handler ; NMI Handler
DCD HardFault_Handler ; Hard Fault Handler
DCD MemManage_Handler ; MPU Fault Handler
DCD BusFault_Handler ; Bus Fault Handler
DCD UsageFault_Handler ; Usage Fault Handler
DCD 0
Each of those handlers needs to be declared, but you can just add the stack pointer and reset handler to get started.
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我是看到这一段代码在startup里边，把这个模块一添加，然后就好了。
也就是添加 AREA RESET, DATA, READONLY 这一句到启动文件对应的位置。