从ADC读取电压并应用于DAC，C代码不起作用

上面显示错误的那条线不完整。



      以下为原文

    The line above the one that shows the error is not complete.
(; is missing ;-)

是的，我也避免在上面的情况下使用中断，因为你开始了ADC转换和轮询……你可能想要使用一种不同的、更优化的方法，稍后，但是现在我将在主循环中完成所有这些操作。



      以下为原文

    Yeah
I'd also avoid using interrupt in the above case, since you're starting ADC conversion and polling for it...
 
You may want to use a different, more optimized approach, later, but right now I'd do it all in the main loop.

哦，这太难堪了，因为前面我的评论，我找不到那个错误：（这个PIC只有一个“全局”中断功能吗？”我习惯于为每个中断定义不同的中断例程（例如，完成ADC转换的一个功能，一个用于定时器溢出中断等），但我不知道在这种情况下这是否可能？如果不是这样的话，我想用我所做的if语句过滤适当的中断原因，我猜？



      以下为原文

    Oh that's so embarrassing, i couldn't find that error because of my comment in front of it :(
 
Is there only one "global" interrupt function for this PIC? I am used to defining different interrupt routines for each interrupt (for example, one function for ADC conversion completed, one for Timer overflow interrupt, etc.), but i don't know if this is possible in this case? If not: I have to filter the appropriate interrupt cause with if-statements like i did, i guess?

你基本上是正确的。只有一个中断向量，并且该向量上的中断服务例程必须检查中断标志（并且中断使所有中断都不能启用）能够确定需要中断什么中断。当然，每个中断都有它自己的主ISR调用函数，但我不喜欢在ISROF过程中执行函数调用，如果只有一个中断启用，如果需要更快的服务，可以跳过标志检查。在新的K42部件之前的PIC18部件具有两个中断向量，允许时间关键中断具有更快和一致的定时，而不排除对较低优先级任务的中断。



      以下为原文

    You are essentially correct. There is only one interrupt vector, and the interrupt service routine at that vector must check interrupt flags (and interrupt enables for any interrupts that aren't always enabled) to determine what interrupt needs to be serviced. Each interrupt can of course have it's own function called by the main ISR, but I prefer not to do function calls in the ISR
 
Of course if there's only one interrupt enabled, you can skip the flag check if you need faster servicing. PIC18 parts prior to the new K42 parts have two interrupt vectors allowing a time critical interrupt to have faster and consistent timing without precluding interrupts for lower priority tasks.