PIC18F27K40中断寄存器似乎不可写

叹息：…这是“那些”日子之一。所以，对于我来说，我不能（大部分）得到这个部分的中断寄存器来接受写。在模拟器或硬件中写入它们没有任何效果。我确信这只是一个配置问题，但我对我到底做的不对。（虽然我有一种感觉，它就像一个不明显的注册表，在任何地方都没有）。文档中唯一可以看到中断寄存器变得不可写的东西是数据表（版本DS4001844 B）第168页的第14.6和第14.7节；YS。当IPEN＝0时，必须设置PEI/GIL位以使这些外围中断中的任何一个中断。…而且。“使用优先级位需要设置中断优先级使能（IPEN）位。”分别指示失败的迹象是明确的，当然，但它并没有明确地说您不能编写这些寄存器。在这两种情况下，我都翻过了那些比特，尝试次数超过了我能计算的数量，显然它什么也没有改变。附件是一个显示问题的文件，但它确实是如我所说的。这个文件只是基本的MPLABX生成的ASM模板、+处理器定义和CONFIG+最小中断配置代码。注意方括号，这是我对具体步骤的评论，以及我为实现这一目标所做的努力。



      以下为原文

    :sigh: . . . it's one of "those" days . . .

So, I can't, for the life of me, get (most of) the interrupt registers for this part to accept writes. Writes to them have no effect, either in the simulator or the hardware. I'm sure this is just a config issue, but I'm at a loss as to what exactly I'm not doing right. (Though I have a feeling it's something like a non obvious register off in the middle of nowhere.)

The only thing in the documentation that I can see that indicates interrupt registers can become unwritable is the sections 14.6 and 14.7 on page 168 of the datasheet (Version DS40001844B ); where it says. . .

"When IPEN = 0, the PEIE/GIEL bit must be set to enable any of these peripheral interrupts."
. . . and . . .
"Using the priority bits requires that the Interrupt Priority Enable (IPEN) bit be set." respectively.

Indications of failure are clear, sure, but it doesn't specifically say you can't write these registers. In either case, I have flipped those bits and tried it more times than I can count and it apparently changes nothing.

Attached is a file that exhibits the problem, but it's really just as I said. This file is just the basic MPLABX generated ASM template, + processor definition and config + minimal Interrupt config code. Watch out for square brackets, they are my comments about that specific step and what I did to fulfill it.
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The_correct_file_this_time.asm (11.34 KB) - downloaded 37 times