Question

尝试构建项目时，出现类似以下错误：

Drivers/CMSIS/Include/core_cm4.h:1816:41: error: unknown type name 'IRQn_Type'; did you mean 'ITM_Type'?
 1816 | __STATIC_INLINE void __NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
      |                                         ^~~~~~~~~

或

Drivers/CMSIS/Include/core_cm4.h: In function 'NVIC_EncodePriority':
Drivers/CMSIS/Include/core_cm4.h:1869:64: error: '__NVIC_PRIO_BITS' undeclared (first use in this function)
 1869 |   PreemptPriorityBits = ((7UL - PriorityGroupTmp) > (uint32_t)(__NVIC_PRIO_BITS)) ? (uint32_t)(__NVIC_PRIO_BITS) : (uint32_t)(7UL - PriorityGroupTmp);

因此，似乎未定义IRQn_Type和__NVIC_PRIO_BITS。

据我了解，数据类型在stm32f407xx.h文件中定义，我告诉make在哪里可以找到它： -IDrivers / CMSIS / Device / ST / STM32F4xx / Include

编辑

我刚看到的第一个错误是这些：

In file included from Drivers/CMSIS/DSP/Include/arm_math.h:322,
                 from Src/dsp/dsp.c:1:
Drivers/CMSIS/Include/core_cm4.h:105:8: error: #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
  105 |       #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
      |        ^~~~~

In file included from Src/dsp/dsp.c:3:
Drivers/CMSIS/Include/core_cm4.h:1688:39: error: unknown type name 'IRQn_Type'; did you mean 'ITM_Type'?
 1688 | __STATIC_INLINE void __NVIC_EnableIRQ(IRQn_Type IRQn)
      |                                       ^~~~~~~~~
      |                                       ITM_Type

我的模板makefile由CubeMX生成，但是我做了一些更改（更改了文件夹的结构，添加了定义和包含目录）。

# C defines
C_DEFS =  \
-DUSE_HAL_DRIVER \
-DSTM32F407xx \
-DARM_MATH_CM4 

# C includes
C_INCLUDES =  \
-IConfigs \
-ISrc \
-IDrivers/STM32F4xx_HAL_Driver/Inc \
-IDrivers/STM32F4xx_HAL_Driver/Inc/Legacy \
-IDrivers/CMSIS/Device/ST/STM32F4xx/Include \
-IDrivers/CMSIS/Include \
-IDrivers/CMSIS/DSP/Include

我得到这个错误：

In file included from Drivers/CMSIS/DSP/Include/arm_math.h:322,
                 from Src/dsp/filter.h:9,
                 from Src/dsp/filter.c:1:
Drivers/CMSIS/Include/core_cm4.h:105:8: error: #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
  105 |       #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
      |        ^~~~~
make: *** [Makefile:228: build/filter.o] Error 1

如果我将此行放在#include <arm_math.h>上方。

#define STM32F407xx
#include "stm32f4xx.h"

还将-D__FPU_PRESENT添加到定义后，仍然出现错误：

In file included from Src/dsp/dsp.c:4:
Drivers/CMSIS/Include/core_cm4.h:1688:39: error: unknown type name 'IRQn_Type'; did you mean 'ITM_Type'?
 1688 | __STATIC_INLINE void __NVIC_EnableIRQ(IRQn_Type IRQn)

Answer 1

为确保包括特定微控制器的头文件，您需要定义相关的宏。对于您的情况，您需要确保将-DSTM32F407xx传递给编译器。具体如何执行将取决于您的构建环境。

完成后，相关的头文件将为automatically included via stm32f4xx.h。

如果您想知道如何确保依次包含stm32f4xx.h-以及是否需要将其明确包含在您自己的源文件中...

通常，您不需要显式包含stm32f4xx.h。只要包括标准外围设备之一的头文件（例如RCC或GPIO），该文件就会自动包含在内。

因此包含链可能如下所示：

stm32f4xx_rcc.h <-包含在您的源文件中
- stm32f4xx.h
  - stm32f407xx.h

后两个是自动的-只要在预处理器标志中传递了-DSTM32F407xx。

Answer 2

core_cm4.h不应直接包含在内。

相反，您#define MCU line ，#include是MCU 系列的标题。

#define STM32F407xx
#include "stm32f4xx.h"

其中将包含stm32f407xx.h，而其中依次包含core_cm4.h。

直接包含stm32f407xx.h，但不包含#define也可以。

Answer 3

IRQn_Type基本上是一个枚举，它包含控制器具有的所有类型的中断的值。例如

enum    IRQn_Type { 
  NonMaskableInt_IRQn = -14, 
  HardFault_IRQn = -13, 
  MemoryManagement_IRQn = -12, 
  BusFault_IRQn = -11, 
  UsageFault_IRQn = -10, 
  SecureFault_IRQn = -9, 
  SVCall_IRQn = -5, 
  DebugMonitor_IRQn = -4, 
  PendSV_IRQn = -2, 
  SysTick_IRQn = -1, 
  WWDG_STM_IRQn = 0, 
  PVD_STM_IRQn = 1 
}

如果该头文件不存在，则表示该文件已损坏或有人进行了更改。用新文件替换文件可能会解决您的问题。

未知的数据类型IRQn_Type，

编辑

3 个答案: