爱华网warning:A1876W: Useof '|' as a synonym for the :OR: operator is deprecated.
部分源代码：
MSR CPSR_c, #(NoInt|IRQ32Mode) ;进入IRQ模式。
解决方法：把"|"修改为":OR:", 如下
MSR CPSR_c, #NoInt:OR:IRQ32Mode ;进入IRQ模式。
warning:A1608W: MOVpc, instruction used, but BX is preferred
解决方法：把MOV pc,替换为 BX
Error:L6238E:os_cpu_a.o(subr) contains invalid call from '~PRES8 (The user didnot require code to preserve 8-byte aligment of 8-byte dataobjects)' function to 'REQ8 (Code was permitted to depend on the8-byte aligment of 8-byte data items)' function OSIntExit.
解决方法：在汇编程序前面加上PRESERVE8
PRESERVE8
AREA |subr|, CODE, READONLY
IMPORT OSIntNesting
IMPORT OSTCBCur
IMPORT IsrIRQ
…………
warning:A1085W:Forced user-mode LDM/STM must not be followed by use of bankedR8-R14
部分源代码:
STMFD SP,{R3,SP,LR}^ ;系统模式SP→|R0 |
SUB SP,SP,#12 ;系统模式SP→|SPSR|
解决方法：在两行语句中间加nop，即可解决warning
STMFD SP,{R3,SP,LR}^ ;系统模式SP→|R0 |
nop
SUB SP,SP,#12 ;系统模式SP→|SPSR|
error:L6236E: No sectionmatches selector - no section to be FIRST/LAST.
部分源代码：
RuninFlash.sct
LR_ROM1 0x00000000
{ ; load region
ER_ROM1 0x00000000 0x0200000
{ ; load address = execution address
*.o (RESET, +First);报错的地方
*(InRoot$$Sections)
.ANY (+RO)
}
RW_RAM1 0x0C000000 0x800000
{ ; RW data
.ANY (+RW +ZI)
}
}
解决方法：
在启动文件，我的是44binit.s 中找到
AREA Init,CODE,READONLY
改为
AREARESET,CODE,READONLY
