装配错误帮助请求涉及22 SLOC

什么是“22斯洛克”？



      以下为原文

    What is "22 SLOC" ?

PrHAPPSHTPS://E.WiKiTo.Org/Wik/SooSeCier-LeSeSufOf码



      以下为原文

   
Perhaps https://en.wikipedia.org/wiki/Source_lines_of_code
 

可能是指“22源代码行”。首字母缩写词有时是一种真正的痛苦。



      以下为原文

   
Probably refering to "22 Source Lines Of Code". Acronyms are sometimes a real pain.....

这可能是一个RMW（读修改写）问题，在您的写入GPIO pins.RMW（读修改写）问题解释DRMW和解决方案，因为它没有显示您的所有代码，也可以写入其他GPIO引脚。移动到一个新的PIC与LAT寄存器WOULD解决这个问题，否则你需要一些防御编程技术。



      以下为原文

    This could be a RMW (read-modify-write) issue on your writes to the GPIO pins.

• RMW (Read Modify Write) problem explained
  
• RMW and solutions for it 
  

Hard to tell because you did not show all the rest of your code, which could also be writing to other GPIO pins.
Moving to a newer PIC with a LAT register would fix that problem, otherwise you need some defensive programming techniques.
 
 
 

什么是GPIO引脚和如何？BTFSS GPIO指令读取引脚，如果它保持低（或高），因为引脚上的负载（LED可能？）它可能无法读取上次发送给它的状态。



      以下为原文

    WHat is conected to the GPIO pin and how? The BTFSS GPIO instruction reads the pin, if it is held low (or high) because of the load on the pin (an LED maybe?) it may not read the state you last sent to it.

也许试着用这个代替这个



      以下为原文

   
Perhaps try replacing this

; Toggle TXPIN.
BTFSS GPIO, TXPIN
BSF GPIO, TXPIN
BCF GPIO, TXPIN

with this

; Toggle TXPIN.
movlw 1 << TXPIN
xorwf GPIO

 

不是第42行吗？我总是留下13行空白。



      以下为原文

    Not line 42?
 
I always leave line 13 blank.

对不起，最近的答复。TXPIN被分配为PIN 3（GP4），并作为输出三态。它连接到一个LED。最初，我用GPIO寄存器将工作寄存器（与TXPIN集对应的位）xxx，以切换它。这也显示了问题。所提供的代码的部分没有退出，所以在运行段时没有其他GPIO修改。我尝试使用IO写的影子寄存器。此方法在启动时导致闪存，然后不再输出。



      以下为原文

    Sorry for the late reply.
 
The TXPIN is allocated as pin 3 (GP4) and is tristated as an output. It is connected to an LED.
 
Originally I XORed the working register (which had the bit that corresponded with TXPIN set) with the GPIO register to toggle it. This also exhibited the issue.
 
The section of the code provided is not exited, so no other GPIO modifications can occur while the segment is running.
 
I've attempted to use a shadow register for the IO writes. This method causes a flash at startup then no more output.

显示你使用的代码，你可能没有正确地完成它。



      以下为原文

   
Show the code you used.
You may just not have done it correctly.
 

显示您使用的代码。您可能只是没有正确地完成它。显示所有代码（配置寄存器，一切），而不仅仅是您认为有问题的部分。问题很可能是代码中的其他地方…



      以下为原文

   
Show the code you used.
You may just not have done it correctly.
 


Show ALL the code (configuration registers, everything), not just the part you think has the issues. It is likely the issue is somewhere else in your code....

这里是整个程序（使用影子寄存器方法可能不正确）。任何坏格式都是因为MPLAB对我复制代码疯狂。



      以下为原文

    Here's the entirety of the program (using the shadow register method that may be incorrect).
 

org 0x000
    
__CONFIG 0x12

TXPIN    EQU    0x04
RXPIN    EQU    0x01
VPIN    EQU    0x05
BUTTON    EQU    0x00

GPIO    EQU    0x06
TMP0    EQU    0x07
TMP1    EQU    0x08
TMP2    EQU    0x09
TMP3    EQU    0x0A
GPIOS    EQU    0x0B
    
RESET    CODE    0x000
    
setup
    ; Clear the temporary registers to ensure they are ready for use.
    CLRF    TMP0
    CLRF    TMP1
    CLRF    TMP2
    CLRF    TMP3
    
    ; Clear option register.
    MOVLW   0x00
    OPTION
    
    BCF        TMP0, TXPIN        ; Set TXPIN as an output.
    BSF        TMP0, RXPIN        ; Set RXPIN as an input.
    BSF        TMP0, BUTTON    ; Set BUTTON as an input.
    BSF        TMP0, VPIN        ; Set VPIN as an input.
    MOVF    TMP0        ; Load what we just defined.
    TRIS    GPIO        ; Set pinstates.
    
    CLRF    GPIO
    
    CLRF    TMP0        ; Clear the temporary register for use in rx and tx.
    
    BTFSC   GPIO, VPIN        ; Get VPIN state.
    GOTO    rx            ; If VPIN is HIGH receive.     
    GOTO    tx            ; If VPIN is LOW transmit.

    
; Transmission stuff.
send
    ; send sends a 65536 us (65.5 ms) signal.
    MOVLW   0x14
    MOVWF   TMP0
    CLRF    TMP1
    
    send_loop
    DECFSZ  TMP0
    GOTO    send_sub
    RETLW   0
    
    send_sub
    BSF    GPIO, TXPIN
    NOP
    NOP
    NOP
    NOP
    BCF    GPIO, TXPIN
    NOP
    NOP
    NOP
    NOP
    NOP
    DECFSZ    TMP1
    GOTO    send_sub
    GOTO    send_loop
    
tx
    BTFSS   GPIO, BUTTON    ; Check if button is pressed.
    GOTO    tx            ; Not pressed.
    CALL    send        ; Pressed, call send (send takes a long time so no debouncing is required).
    CLRF    GPIO
    
    CLRF    TMP0
    CLRF    TMP1
    MOVLW   0x03
    MOVWF   TMP2
    txwait
    DECFSZ    TMP0
    GOTO    txwait
    DECFSZ    TMP1
    GOTO    txwait
    DECFSZ    TMP2
    GOTO    txwait
    GOTO    tx            ; Go back to beginning.
 
    
; Receiving stuff.
rx
    BTFSC   GPIO, RXPIN        ; Check if a signal is detected.
    GOTO    rxoff        ; Nope, jump to rxoff.
    CLRF    TMP3        ; Clear the off register because the gap was false.
    
    ; 2^16 us delay.
    INCFSZ  TMP0        ; Yes, count up the minor register, skip return if overflow.
    GOTO    rx            ; Go back so we can keep counting.
    
    INCFSZ  TMP1        ; Minor register overflowed, so count major one. Skip return if overflow.
    GOTO    rx            ; Return so we can keep counting.
    
    ; Toggle TXPIN.
    BTFSS   GPIOS, TXPIN
    BSF        GPIOS, TXPIN
    BCF        GPIOS, TXPIN
    
    MOVF    GPIOS
    MOVWF   GPIO
    
    ; Delay before we continue.
    rxafter
    INCFSZ  TMP0        ; Increase TMP0, skip if overflow.
    GOTO    rxafter        ; Keep counting.
    INCFSZ  TMP1        ; Increase TMP1, skip if overflow
    GOTO    rxafter        ; Keep counting.
    GOTO    rx        ; Start again.
    
rxoff
    INCFSZ  TMP3        ; Increase a temporary register, skip if overflow.
    GOTO    rx            ; Go back for recount.
    ; Temporary register overflowed.
    CLRF    TMP0        ; Clear temporary register.
    CLRF    TMP1        ; Clear other temporary register.
    GOTO    rx            ; Go back to listen again.
    
    
END

 
Any bad formatting is caused by MPLAB being mad at me copying the code.

对于启动器，您应该在源代码中指定PIC设备，包括设备特定的包含文件& lt；p12f509.Inc & gt；使用包含在FieldFielePosits中的符号重写y-OngIfg行。



      以下为原文

    For starter, you should

• specify the PIC device in the source code
  
• #include the device specific include file
  
• rewrite the __config line using symbols from the include file
  

• replace this
  

MOVF TMP0 ; Load what we just defined.
TRIS GPIO ; Set pinstates

with

MOVF TMP0,W ; Load what we just defined.
TRIS GPIO ; Set pinstates

• replace this
  

; Toggle TXPIN.
BTFSS GPIOS, TXPIN
BSF GPIOS, TXPIN
BCF GPIOS, TXPIN

MOVF GPIOS
MOVWF GPIO

with

; Toggle TXPIN.
MOVLW 1 << TXPIN
XORWF GPIOS

MOVF GPIOS,W
MOVWF GPIO

你读过第7页了吗？



      以下为原文

    Have you read post #7?

谢谢你，你的代码工作。感谢所有帮助过的人，这里的社区非常支持和帮助！



      以下为原文

    Thank you 1and0, your code works.
 
Thanks to everyone else who has helped, the community here is very supportive and helpful!

你的代码应该在没有影子寄存器的情况下工作，因为你只有一个输出引脚。除非那个插销很重。



      以下为原文

    Your code should had worked without a shadow register, because you have only one output pin.
 
... unless that pin is heavily loaded.
 

除非输出重载，因此不能达到真正的“1”。



      以下为原文

   
Unless the output is heavily loaded and thus cannot reach a true "1".

看来我们有交叉邮寄。；）



      以下为原文

    Look like we got cross-posted. ;)