write a complete code for STM32F407

jab99407 · Sep 6, 2021

I have some basic understanding of microcontroller, C programming language and did some projects about this. There is no doubt, STM32Cube code generator is very useful but I don't want to use code generated by STM32Cube.

This is my basic template. if I want to write complete for stm32f407 board I will need to include header file. I have datasheet so how to write my own header file by looking information into datasheet.

C:

void main(void)
{
   initialize();
   while (1)
      {
    
      
      }
}

rjenkinsgb · Sep 7, 2021

Just get one of the standard device headers for the STM32 that already exist; no point "reinventing the wheel".
eg.

Espruino/targetlibs/stm32f4/lib/stm32f4xx.h at master · espruino/Espruino

The Espruino JavaScript interpreter - Official Repo - espruino/Espruino

github.com

Set the appropriate device type in the first few lines of that, where it says.

Then you can write the actual C program you want!

Edit - typo

jab99407 · Sep 8, 2021

rjenkinsgb said:
Set the appropriate device type in the first dew lines of that, where it says.

I don't understand what is meaning of "Set the appropriate device type in the first dew lines of that, where it says." Can you explain clearly

C:

#include"stm32f4xx.h"

void main(void)
{
   initialize();
   while (1)
      {
    
      
      }
}

rjenkinsgb · Sep 8, 2021

It should have said "First few lines".

See this section of the header file:

C:

#if !defined  (STM32F4)
#define STM32F4
#endif /* STM32F4 */

/* Uncomment the line below according to the target STM32 device used in your
   application
  */
#if !defined (STM32F405xx) && !defined (STM32F415xx) && !defined (STM32F407xx) && !defined (STM32F417xx) && \
    !defined (STM32F427xx) && !defined (STM32F437xx) && !defined (STM32F429xx) && !defined (STM32F439xx) && \
    !defined (STM32F401xC) && !defined (STM32F401xE) && !defined (STM32F411xE) && !defined (STM32F446xx)
  /* #define STM32F405xx */   /*!< STM32F405RG, STM32F405VG and STM32F405ZG Devices */
  /* #define STM32F415xx */   /*!< STM32F415RG, STM32F415VG and STM32F415ZG Devices */
  /* #define STM32F407xx */   /*!< STM32F407VG, STM32F407VE, STM32F407ZG, STM32F407ZE, STM32F407IG  and STM32F407IE Devices */
  /* #define STM32F417xx */   /*!< STM32F417VG, STM32F417VE, STM32F417ZG, STM32F417ZE, STM32F417IG and STM32F417IE Devices */
  /* #define STM32F427xx */   /*!< STM32F427VG, STM32F427VI, STM32F427ZG, STM32F427ZI, STM32F427IG and STM32F427II Devices */
  /* #define STM32F437xx */   /*!< STM32F437VG, STM32F437VI, STM32F437ZG, STM32F437ZI, STM32F437IG and STM32F437II Devices */
  /* #define STM32F429xx */   /*!< STM32F429VG, STM32F429VI, STM32F429ZG, STM32F429ZI, STM32F429BG, STM32F429BI, STM32F429NG,
                                   STM32F439NI, STM32F429IG  and STM32F429II Devices */
  /* #define STM32F439xx */   /*!< STM32F439VG, STM32F439VI, STM32F439ZG, STM32F439ZI, STM32F439BG, STM32F439BI, STM32F439NG,
                                   STM32F439NI, STM32F439IG and STM32F439II Devices */
  /* #define STM32F401xC */   /*!< STM32F401CB, STM32F401CC, STM32F401RB, STM32F401RC, STM32F401VB and STM32F401VC Devices */
  /* #define STM32F401xE */   /*!< STM32F401CD, STM32F401RD, STM32F401VD, STM32F401CE, STM32F401RE and STM32F401VE Devices */
  /* #define STM32F411xE */   /*!< STM32F411CD, STM32F411RD, STM32F411VD, STM32F411CE, STM32F411RE and STM32F411VE Devices */
  /* #define STM32F446xx */   /*!< STM32F446MC, STM32F446ME, STM32F446RC, STM32F446RE, STM32F446VC, STM32F446VE, STM32F446ZC,
                                   and STM32F446ZE Devices */
#endif

Just do as it says and uncomment the define relevant to the device you are using:
#define STM32F407xx /*!< STM32F407VG, STM32F407VE, STM32F407ZG, STM32F407ZE, STM32F407IG and STM32F407IE Devices */

Or you could add the appropriate #define on a line before the #include for that header file, at the start of your program:

Code:

#define STM32F407xx
#include "stm32f4xx.h"

jab99407 · Sep 8, 2021

rjenkinsgb said:
It should have said "First few lines".

See this section of the header file:

Or you could add the appropriate #define on a line before the #include for that header file, at the start of your program:

Code:

#define STM32F407xx #include "stm32f4xx.h"

Thanks for help I now want to test code practically. user manual of IDE https://www.st.com/resource/en/user_manual/dm00629856-stm32cubeide-user-guide-stmicroelectronics.pdf I can create project for specific board. Do you have any idea how to create project from scratch stm32f407G

write a complete code for STM32F407

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Espruino/targetlibs/stm32f4/lib/stm32f4xx.h at master · espruino/Espruino

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