STM32工程中出现 error: A1163E: Unknown opcode R0, , expecting opcode or Macro错误分析及处理

最近测试以前的一个程序，一般都是打开以前写的程序修改参数直接测试

但是发现以前的编译后出现错误。

奇怪了，以前的出现都是调试好了的啊，一般都是没有错误的，迅速找问题

跳转到错误代码行

代码区域

  1 Heap_Size       EQU     0x00000000
  2 
  3                 AREA    HEAP, NOINIT, READWRITE, ALIGN=3
  4 __heap_base
  5 Heap_Mem        SPACE   Heap_Size
  6 __heap_limit
  7 
  8                 PRESERVE8
  9                 THUMB      ;指定为THUMB代码集
 10 
 11 
 12 ; Vector Table Mapped to Address 0 at Reset
 13                 AREA    RESET, DATA, READONLY       ;伪指令指定一下数据将放到程序存储区的开始。
 14                 EXPORT  __Vectors
 15                 EXPORT  __Vectors_End
 16                 EXPORT  __Vectors_Size
 17 
 18 __Vectors       DCD     __initial_spTop           ; Top of Stack    栈首地址值（注意：CM3的栈指针是递减的）
 19                 DCD     Reset_Handler             ; Reset Handler   复位函数的入口地址
 20                 DCD     NMI_Handler               ; NMI Handler     以下为响应的中断函数入口地址
 21                 DCD     HardFault_Handler         ; Hard Fault Handler
 22                 DCD     MemManage_Handler         ; MPU Fault Handler
 23                 DCD     BusFault_Handler          ; Bus Fault Handler
 24                 DCD     UsageFault_Handler        ; Usage Fault Handler
 25                 DCD     0                         ; Reserved
 26                 DCD     0                         ; Reserved
 27                 DCD     0                         ; Reserved
 28                 DCD     0                         ; Reserved
 29                 DCD     SVC_Handler               ; SVCall Handler
 30                 DCD     DebugMon_Handler          ; Debug Monitor Handler
 31                 DCD     0                         ; Reserved
 32                 DCD     PendSV_Handler            ; PendSV Handler
 33                 DCD     SysTick_Handler           ; SysTick Handler
 34 
 35                 ; External Interrupts                                           以下为STM32定义的中断入口地址也是CM3定义的外部中断（非CM3内核中断）入口地址
 36                 DCD     WWDG_IRQHandler           ; Window Watchdog
 37                 DCD     PVD_IRQHandler            ; PVD through EXTI Line detect
 38                 DCD     TAMPER_IRQHandler         ; Tamper
 39                 DCD     RTC_IRQHandler            ; RTC
 40                 DCD     FLASH_IRQHandler          ; Flash
 41                 DCD     RCC_IRQHandler            ; RCC
 42                 DCD     EXTI0_IRQHandler          ; EXTI Line 0
 43                 DCD     EXTI1_IRQHandler          ; EXTI Line 1
 44                 DCD     EXTI2_IRQHandler          ; EXTI Line 2
 45                 DCD     EXTI3_IRQHandler          ; EXTI Line 3
 46                 DCD     EXTI4_IRQHandler          ; EXTI Line 4
 47                 DCD     DMA1_Channel1_IRQHandler  ; DMA1 Channel 1
 48                 DCD     DMA1_Channel2_IRQHandler  ; DMA1 Channel 2
 49                 DCD     DMA1_Channel3_IRQHandler  ; DMA1 Channel 3
 50                 DCD     DMA1_Channel4_IRQHandler  ; DMA1 Channel 4
 51                 DCD     DMA1_Channel5_IRQHandler  ; DMA1 Channel 5
 52                 DCD     DMA1_Channel6_IRQHandler  ; DMA1 Channel 6
 53                 DCD     DMA1_Channel7_IRQHandler  ; DMA1 Channel 7
 54                 DCD     ADC1_2_IRQHandler         ; ADC1 & ADC2
 55                 DCD     USB_HP_CAN1_TX_IRQHandler  ; USB High Priority or CAN1 TX
 56                 DCD     USB_LP_CAN1_RX0_IRQHandler ; USB Low  Priority or CAN1 RX0
 57                 DCD     CAN1_RX1_IRQHandler       ; CAN1 RX1
 58                 DCD     CAN1_SCE_IRQHandler       ; CAN1 SCE
 59                 DCD     EXTI9_5_IRQHandler        ; EXTI Line 9..5
 60                 DCD     TIM1_BRK_IRQHandler       ; TIM1 Break
 61                 DCD     TIM1_UP_IRQHandler        ; TIM1 Update
 62                 DCD     TIM1_TRG_COM_IRQHandler   ; TIM1 Trigger and Commutation
 63                 DCD     TIM1_CC_IRQHandler        ; TIM1 Capture Compare
 64                 DCD     TIM2_IRQHandler           ; TIM2
 65                 DCD     TIM3_IRQHandler           ; TIM3
 66                 DCD     TIM4_IRQHandler           ; TIM4
 67                 DCD     I2C1_EV_IRQHandler        ; I2C1 Event
 68                 DCD     I2C1_ER_IRQHandler        ; I2C1 Error
 69                 DCD     I2C2_EV_IRQHandler        ; I2C2 Event
 70                 DCD     I2C2_ER_IRQHandler        ; I2C2 Error
 71                 DCD     SPI1_IRQHandler           ; SPI1
 72                 DCD     SPI2_IRQHandler           ; SPI2
 73                 DCD     USART1_IRQHandler         ; USART1
 74                 DCD     USART2_IRQHandler         ; USART2
 75                 DCD     USART3_IRQHandler         ; USART3
 76                 DCD     EXTI15_10_IRQHandler      ; EXTI Line 15..10
 77                 DCD     RTCAlarm_IRQHandler       ; RTC Alarm through EXTI Line
 78                 DCD     USBWakeUp_IRQHandler      ; USB Wakeup from suspend
 79                 DCD     TIM8_BRK_IRQHandler       ; TIM8 Break
 80                 DCD     TIM8_UP_IRQHandler        ; TIM8 Update
 81                 DCD     TIM8_TRG_COM_IRQHandler   ; TIM8 Trigger and Commutation
 82                 DCD     TIM8_CC_IRQHandler        ; TIM8 Capture Compare
 83                 DCD     ADC3_IRQHandler           ; ADC3
 84                 DCD     FSMC_IRQHandler           ; FSMC
 85                 DCD     SDIO_IRQHandler           ; SDIO
 86                 DCD     TIM5_IRQHandler           ; TIM5
 87                 DCD     SPI3_IRQHandler           ; SPI3
 88                 DCD     UART4_IRQHandler          ; UART4
 89                 DCD     UART5_IRQHandler          ; UART5
 90                 DCD     TIM6_IRQHandler           ; TIM6
 91                 DCD     TIM7_IRQHandler           ; TIM7
 92                 DCD     DMA2_Channel1_IRQHandler  ; DMA2 Channel1
 93                 DCD     DMA2_Channel2_IRQHandler  ; DMA2 Channel2
 94                 DCD     DMA2_Channel3_IRQHandler  ; DMA2 Channel3
 95                 DCD     DMA2_Channel4_5_IRQHandler ; DMA2 Channel4 & Channel5
 96 __Vectors_End
 97 
 98 __Vectors_Size     EQU     __Vectors_End - __Vectors
 99 
100                 AREA    |.text|, CODE, READONLY      ;定义以下汇编函数将调用C函数
101 
102 ; Dummy SystemInit_ExtMemCtl function                
103 SystemInit_ExtMemCtl     PROC
104                 EXPORT  SystemInit_ExtMemCtl      [WEAK]
105                 BX      LR
106                 ENDP
107                 
108 ; Reset handler routine
109 Reset_Handler   PROC
110                 EXPORT  Reset_Handler             [WEAK]     ;这里就是复位函数了
111                 IMPORT  __main                               ;这个是定义一个外部的函数方便下边调用。这个函数是编译器自带的C环境运行函数名
112 
113 
114  LDR     R0, = SystemInit_ExtMemCtl ; initialize external memory controller
115                 BLX     R0
116 
117                 LDR     R1, = __initial_sp        ; restore original stack pointer
118                 MSR     MSP, R1                   
119 
120                 LDR     R0, =__main               ;跳转上边定义的外部函数处执行。这里需要解释一下：这个“__main”函数不是我们在C语言中写的“main”函数。但他在创建了C函数的运行环境后会跳转到我们在C语言中写的“main”函数中去。
121                 BX      R0                        ;这个就是跳转指令了
122                 ENDP
123                 
124 ; Dummy Exception Handlers (infinite loops which can be modified)   以下为中断函数的伪定义，当外部有对应的中断函数时，这里的中断函数不起作用。

 

作为一名资深码农,还是要具备专业英文阅读的能力.

错误：A1163E：未知操作指令R0，预指令或者宏错误.

也就是说R0未识别，记得以前看过博客好像是说

 1.ARM汇编指令不支持顶格写，否则不能识别

2. 声明变量时不要有空格

可能是缩进造成的问题，。

就在前面加了一个空格。OK

0个错误，0个警告，全部重新生成。

 

The End！

 

 

欢迎加入C#群：160441098

      嵌入式交流群：227262400