c - 未知数据类型 IRQn_Type，

Question

当尝试构建我的项目时，我收到如下错误:

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);

看来 IRQn_Type 和 __NVIC_PRIO_BITS 没有定义。

据我了解，数据类型是在 stm32f407xx.h 文件中定义的，我已经告诉 make 在哪里可以找到它:-IDrivers/CMSIS/设备/ST/STM32F4xx/包括

<小时/>

编辑

我刚刚看到的第一个错误是:

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 是由 CubeMX 生成的，但我做了一些更改(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

<小时/>

我收到这个错误:

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

如果我把这行放在我的 #include <arm_math.h> 上面.

#define STM32F407xx
#include "stm32f4xx.h"

<小时/>

添加后还-D__FPU_PRESENT对于定义，我仍然收到错误:

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

为了确保包含特定微 Controller 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 传递给您的编译器。具体如何执行此操作取决于您的构建环境。

完成此操作后，相关头文件将为 automatically included via stm32f4xx.h .

如果您想知道如何确保包含 stm32f4xx.h - 以及是否需要将其显式包含在您自己的源文件中......

通常，您不需要显式包含 stm32f4xx.h。只要您包含其中一种标准外设(例如 RCC 或 GPIO)的头文件，它就会自动包含在内。

因此包含链可能如下所示:

• stm32f4xx_rcc.h <- 包含在源文件中
  • stm32f4xx.h
    • stm32f407xx.h

后两者是自动的 - 只要在预处理器标志中传递 -DSTM32F407xx 即可。