T1GVAL上没有任何变化

有人来帮我吗？？



      以下为原文

    is here anyone to help me??

嗯，你的代码有几个问题，第一个是你从一个中断返回到主代码…



      以下为原文

    Hmm, your code has several issues, first one is that you return from an interrupt by jumping to main code...

我的问题是T1GVAL。当TMR0溢出时，T1GVAL成为切换。但我看不到T1GVAL有任何变化。为什么？你明白吗？？



      以下为原文

    my problem is T1gval. when tmr0 be overflow should T1gval become toggle. but I don't see any change on T1gval. why??
do you understand??

是的，我从来没有使用过T1GVAL的函数：但是，就像现在一样，您的代码会一遍遍地崩溃。



      以下为原文

    Yes,
I have never used that function of T1gval: but, as is now, your code will crash over and over

谢谢，但是我的问题是T1GVAL。这是PIC组装中的一个非常大的问题。我从来没有见过PIC的问题。在数据表中写的每件事都是正确的，但是关于T1GVAL没有响应！！！！！！！！！！！！！为什么？我的问题在哪里？？



      以下为原文

    Thanks but my problem is T1gval . this is a very big problem in pic assembly . I don't have ever seen about problem in pic . every thing that write in datasheet is correct but about T1gval not response!!!!!!!!!!why??where is my problem ??

你如何测试/表明T1GVAL不在切换？



      以下为原文

   
How are you testing/indicating that the T1gval is/is not toggling?

确切地。T1GVAL在TMR0溢出时不切换。MOVLW 0XFFMOVWF TMR0BTFSS T1GCON，T1GVALL GOTO $ 1



      以下为原文

    Exactly. T1gval is not toggling when tmr0 be overflow.
MOVLW 0XFF   
 MOVWF TMR0   
BTFSS T1GCON,T1GVAL    
GOTO $-1   

我的问题是，你怎么知道T1GVAL比特不切换？您是否使用调试器在PIC中运行代码（哪一个？）你在运行模拟器吗？哦，正如Dario所说，你的代码有严重的错误——使用从ISR出来的goto肯定会很快使代码崩溃。



      以下为原文

    My question was how do you know T1gval bit is NOT toggling? Are you running the code in the pic with a debugger (which one?)? Are you running the simulator? 
 
Oh, and as Dario said, your code has serious errors - using a goto out of an ISR is bound to crash the code very quickly.

对。我使用MPLAB SIM。我在模拟器中运行这个程序，但是T1GVAL从不切换。



      以下为原文

    yes. I use from MPLAB SIM .I run this program in simulator but T1gval never not toggle.
 
   Attached Image(s)

模拟器往往不准确，或者可能不支持硬件的某些特性。



      以下为原文

    Simulator often is not accurate, or maybe it does not support some features of hardware.

但在硬件上完全是类似的模拟器。



      以下为原文

   
but in hardware exactly is similar simulator

此文件不正确



      以下为原文

    this file is incorrect
   Attachment(s)

Untitled.asm (12.08 KB) - downloaded 18 times

哦，我的程序是这个。你能记住这个吗？？



      以下为原文

    oh my program is this. Untitled.asm that is full version. can you repear this??
   Attachment(s)

Untitled.asm (3.26 KB) - downloaded 23 times

16f1823中与t1gval一起工作的重要寄存器是：并且我希望当tmr0溢出时并且我去了中断（ORG 0x4），并且当到达时设置为T1gval。这里有人帮我吗？？？？



      以下为原文

    important register in 16f1823 for work with t1gval are:
                 BANKSEL INTCON
 CLRF INTCON
 bsf INTCON,TMR0IE 
                 
 BANKSEL OPTION_REG
 movlw b'11000101'
 MOVWF OPTION_REG 
    
BANKSEL T1CON
 movlw b'11000101'
 movwf T1CON

 BANKSEL T1GCON
 MOVLW B'11100001'
 MOVWF T1GCON
and I want when tmr0 overf flow and I went to Interrupt (ORG 0x4) , and when arrive to
MOVLW 0XFF
    MOVWF TMR0
    BTFSS T1GCON,T1GVAL ;when program arrive here must T1gval be set when tmr0 been overflow
    GOTO $-1
T1gval be set . is any one here to help me???

在什么？模拟器？你已经被告知不是100%准确。



      以下为原文

    In what? The simulator?
You've already been told that is not 100% accurate.
 

模拟器是MPLAB SIM



      以下为原文

    yes in simulator MPLAB SIM

上面，OP说它也在真实的硬件上发生。现在还不确定……我仍然指着那个结束ISR的“goto主循环”。



      以下为原文

    Above, OP said it happens on real hardware too.
Not sure now...
 
I am still pointing finger against that "goto mainloop" that concludes the ISR

但是我不能去“Goto MyLoCro”，因为T1GVAL没有设置，我在MPLAB SIM中看到了



      以下为原文

   
but I can't to go "goto mainloop" because T1gval does not set and I see this in MPLAB SIM

我认为你没有抓住要点：IRQ处理程序不能在没有延迟的情况下结束（甚至更糟的是Goto主回路）！！！！这会使你的程序崩溃，因此你不能希望获得任何你想要的结果！顺便说一下，我以前没有写过这篇文章，也没什么意义……你是什么意思？



      以下为原文

    I think you did not get the point:
an IRQ handler CANNOT END without a RETFIE (and even worse with a goto mainloop) !!!
 

; Interrupt Service Routine -----------------------------------------------
                org     4              ; ISR beginning
        
                btfss INTCON,TMR0IF    
                retfie                
        
                
                btfsc T1GCON,T1GVAL    
                goto ButtonCheckEnds    
                                    

ButtonCheckEnds    
                MOVLW 0XFF            
                MOVWF TMR0            
                BTFSS T1GCON,T1GVAL     ;when program arrive here must T1gval be set when tmr0 be overflow   
                GOTO $-1            

                CLRF TMR1L            
                CLRF TMR1H                ;
                CLRF TMR0                
                BSF T1CON,TMR1ON    
                BCF INTCON,TMR0IF    
                GOTO MainLoop                

 
This WILL MAKE YOUR PROGRAM CRASH and hence you cannot hope to obtain any result you're trying to!
 
 
By the way - I did not write that before - this one makes no sense too:

                btfsc T1GCON,T1GVAL    
                goto ButtonCheckEnds    
                                    

ButtonCheckEnds  

 
...what did you mean?