STM32 V3.3.0 库请教香主

复制

 

#ifdef STM32L1XX_MD

#include "stm32l1xx.h"

#else

#include "stm32f10x.h"

#endif /* STM32L1XX_MD */

这是 STM32_USB-FS-Device_Lib_V3.3.0库里的定义
=====================================

stm32l1xx.h 和 stm32f10x.h 有啥区别？？

库的例子里面用到的是stm32l1xx.h是这个文件（以前我下的程序大部分用的是stm32f10x.h）

那里不是有一个 #ifdef 吗？

我知道这句话的意思，也知道现在是用的"stm32l1xx.h"

但我不明白这两个头文件有啥区别？？？什么时候用这个，什么时候用那个？？

定义了 STM32L1XX_MD 的时候用的stm32l1xx.h

可为什么要定义 STM32L1XX_MD  ？？

？？

/* #define STM32F10X_LD */     /*!< STM32F10X_LD: STM32 Low density devices */
  /* #define STM32F10X_LD_VL */  /*!< STM32F10X_LD_VL: STM32 Low density Value Line devices */  
  /* #define STM32F10X_MD */     /*!< STM32F10X_MD: STM32 Medium density devices */
  /* #define STM32F10X_MD_VL */  /*!< STM32F10X_MD_VL: STM32 Medium density Value Line devices */  
  /* #define STM32F10X_HD */     /*!< STM32F10X_HD: STM32 High density devices */
  /* #define STM32F10X_HD_VL */  /*!< STM32F10X_HD_VL: STM32 High density value line devices */  
  /* #define STM32F10X_XL */     /*!< STM32F10X_XL: STM32 XL-density devices */
  /* #define STM32F10X_CL */     /*!< STM32F10X_CL: STM32 Connectivity line devices */
#endif

- Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx microcontrollers
   where the Flash memory density ranges between 16 and 32 Kbytes.
- Low-density value line devices are STM32F100xx microcontrollers where the Flash
   memory density ranges between 16 and 32 Kbytes.
- Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx microcontrollers
   where the Flash memory density ranges between 64 and 128 Kbytes.
- Medium-density value line devices are STM32F100xx microcontrollers where the
   Flash memory density ranges between 64 and 128 Kbytes.   
- High-density devices are STM32F101xx and STM32F103xx microcontrollers where
   the Flash memory density ranges between 256 and 512 Kbytes.
- High-density value line devices are STM32F100xx microcontrollers where the
   Flash memory density ranges between 256 and 512 Kbytes.   
- XL-density devices are STM32F101xx and STM32F103xx microcontrollers where
   the Flash memory density ranges between 512 and 1024 Kbytes.
- Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.

STM32L1XX_MD  对应  Medium-density Low-Power devices: STM32L15xx microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.

学习了.

过来看一下

:handshake

不明白你的意思，楼主位说有STM32L1XX_MD，10楼又说没有？？

我在6楼的最后一句话话不是解释了吗？

:victory: