调试期间的预处理程序指令

将它们分配给长变量。



      以下为原文

    Assign them to long variables.

谢谢您。应该想到……



      以下为原文

    thank you. should of thought of that...
 
 

在调试中观看宏有什么意义？它们在运行时不会改变。在运行时甚至不存在。



      以下为原文

    What's the point of watching macros in debug? They don't change during run time. Don't even exist at run time.

我想验证它们是否被评估为所期望的，并且它们可能是（希望）在源代码中使用的。；）



      以下为原文

    I guess to verify they are evaluated to what are expected, and they are probably (hopefully) used in the source code. ;)
 

不是ifPMOD1、PMOD2等是变量或寄存器。您无法从编码风格中辨别出来。#define PMOD_SEL()(PMOD1|PMOD2|PMOD3)将指示它不仅仅是一个常数。



      以下为原文

   
not if PMOD1, PMOD2, ect are variables or registers.
You can't tell from the coding style.
#define PMOD_SEL() (PMOD1 | PMOD2 | PMOD3)
would indicate it is Not just a constant.

宏只是一个文本替换规则，它在特定的上下文中进行评估，并且可能产生代码，也可能不产生代码。如果你想具体化它，你需要使它变成一些有形的，如Harry建议的变量。但是如果你这样做，然后观察变量，你将不会看到实数。我注册，而是在过去某个时间点计算的值。如果您现在正在查看x，则不能获得端口的当前值，而是x的值，这取决于分配的时间。如果您想知道端口中是否发生了更改，则需要确保代码执行再次徘徊在分配中。另一方面，您可以在调试器中实时观看PORTA、PORTB和PORTC，并手动进行计算。这将永远是最新的。



      以下为原文

   


Macro is just a text substitution rule, which is evaluated in certain context, and may or may not produce code. If you want to materialize it, you need to make it into some tangible, such as variable as Harry suggests. But if you do this and then watch the variable, you will not be watching the real-time registers, but rather the value calculated at some point in the past.
 

#define ALLPORT (PORTA|PORTB|PORTC)
 
x = ALLPORT;
 
... some code
 
Nop(); // breakpoint here. Values of ports may have changed.

 
If you're now watching x, you don't get the current value of the ports, but the value of x which depends on the time it was assigned. If you're wondering if something has changed in ports you need to make sure your code execution wanders through the assignment again.
 
On the other hand, you can watch PORTA, PORTB, and PORTC in real time in your debugger and do the calculation manually. This always will be up to date.