ISR堆栈大小由启动代码配置在您的端口中。有两个ISR:FIQ和IRQ,每个都有自己的堆栈。
在这里,我已搜查了ARM9 FreeRTOS的演示了其堆栈配置,遵循结果:
FreeRTOS/Demo/ARM9_STR91X_IAR$ grep -sri "FIQ_STACK"
91x_init.s: SECTION FIQ_STACK:DATA:NOROOT(3)
91x_init.s: LDR SP, =SFE(FIQ_STACK)
STR91x_FLASH.icf:define block FIQ_STACK with alignment = 8, size = __ICFEDIT_size_fiqstack__ { };
STR91x_FLASH.icf: block CSTACK, block SVC_STACK, block IRQ_STACK, block FIQ_STACK,
91x_init_IAR.s:FIQ_Stack DEFINE USR_Stack-8 ; followed by FIQ stack
91x_init_IAR.s:ABT_Stack DEFINE FIQ_Stack-8 ; followed by ABT stack
91x_init_IAR.s: LDR SP, =FIQ_Stack
FreeRTOS/Demo/ARM9_STR91X_IAR$ grep -sri __ICFEDIT_size_fiqstack__
STR91x_FLASH.icf:define symbol __ICFEDIT_size_fiqstack__ = 0x10;
STR91x_FLASH.icf:define block FIQ_STACK with alignment = 8, size = __ICFEDIT_size_fiqstack__ { };
这意味着堆栈大小在STR91x_FLASH.icf文件,或91x_init_IAR.s定义,在ARM9_STR91X_IAR演示,相应地与您使用编译器/创业公司建立。