如何在main.c中创建中断进程

''我想把它移到main.c的文件中''



以下为原文






''I want move it into the file of main.c''

你好：
 
 旨在将所有功能放入main.c.
 弗雷德



以下为原文





Hi:

    Aim to put all function into main.c.
Fred

警告...
 
 如果你需要它，最好使用main中的''extern volatile''变量，由interrupt.c文件访问。
 更好的方法是在main中创建一组''set_var''''get_var''''clr_var''函数，并从interrupt.c文件中调用它们。
 
 例如，定时器中断将在RTC中添加一秒。
 使用''extern volatile''变量，你将在你的interrupt.c中：extern volatile main_time;
 
 void TIMER（void）中断
 {
 main_time ++;
 }
 使用main.c文件中的''get-set-clr''函数，你将在你的interrupt.c中有：#include''main.h''
 
 void TIMER（void）中断
 {
 u32 time = MAIN_GetTime（）;
 MAIN_SetTime（++时间）;
 }
 如果可以的话，使用''内联函数''。
 如果需要移动它：将interrupt.c文件中所需的函数移动到main.c文件中，在main.c中的interrupt.c中添加所有#include''xxx.h''标题。试试吧



以下为原文





Warning...

If you need it, it's better using ''extern volatile'' variables in main, accessed by the interrupt.c file.
A much better way is to make a set of ''set_var'' ''get_var'' ''clr_var'' functions in your main and call them from your interrupt.c file.

For example, the timer interrupt will add a second in the RTC.

• With ''extern volatile'' variable you will have in your interrupt.c:
  

extern volatile main_time;
  
void TIMER(void) interrupt
{
main_time++;
}

• With ''get-set-clr'' functions in main.c file, you will have in your interrupt.c:
  

#include ''main.h''
  
void TIMER(void) interrupt
{
u32 time = MAIN_GetTime();
MAIN_SetTime(++time);
}
Use ''inline functions'' if you can.

• If you need to move that:
  

• Move functions needed from your interrupt.c file to your main.c file,
  
• Add all the #include ''xxx.h'' headers from interrupt.c in main.c
  
• Try it
  

“更好”的构成在很大程度上取决于特定的系统要求和限制。
 
 
 通常情况下，重要的是ISR尽可能“精益和平均” - 因此调用函数将值转换为本地副本，更新本地副本，然后调用另一个函数将其写回来的开销很大可能不受欢迎。
 
 至少考虑在一次通话中为计数提供一个功能......



以下为原文





What constitutes ''better'' depends very much on the particular system requirements & constraints.


Very often, it is important that ISRs are as ''lean and mean'' as possible - so the overhead of calling a function to get the value into a local copy, update the local copy, and then call another function to write it back may be undesirable.

At least consider providing a function to  the count in a single call...