yoanndqr/stm32-learning

Here are some notes from "STM32 Note"

/*******************************************************************************

• File Name : readme.md
• Author : timmy00274672 ([email protected])
• Date : 06/05/2014
• Version : Version 2.1
• Description : This file describe the environment-related setting. *******************************************************************************/

In the repo, I just copy the examples from STM32 Note.

Environment

• IDE : IAR
• FWLib : V2.0.3 (STMicroelectronics)
• Board : CEPARK STM32F103RCT6

Establish

1. Create a IAR project. (PWD in below is the IAR project directory.)

2. Include C/C++ libriary directories:

   $WS_DIR$\..\CMSIS_V1P10\Core\CM3
   $WS_DIR$\..\FWLib\library\inc
   $WS_DIR$\..\FWLib\project
   $WS_DIR$\inc
   

3. Add Group CMSIS_Include (optional)

   $WS_DIR$\..\CMSIS_V1P10\Core\CM3\core_cm3.h
   $WS_DIR$\..\CMSIS_V1P10\Core\CM3\stm32.h
   $WS_DIR$\..\CMSIS_V1P10\Core\CM3\system_stm32.h
   

4. Add Group CMSIS_Source

   $WS_DIR$\..\CMSIS_V1P10\Core\CM3\core_cm3.c
   $WS_DIR$\..\CMSIS_V1P10\Core\CM3\system_stm32.c
   

5. Add Group CMSIS_Startup (Depend on IDE)

   $WS_DIR$\..\CMSIS_V1P10\Core\CM3\startup\iar\startup_stm32f10x.s
   

6. Add Group FWLib_src (Add the used files)

   $WS_DIR$\..\FWLib\library\src\*.c
   

7. Add Group Include (optional)

   $WS_DIR$\inc\*.h
   

8. Add Group User or Source

   All the files of the project, espacially the file containing main function.

9. More information can be found in $WS_DIR$\..\FWLib\project\readme.

Additional Project Properties

Set processor variant

Set device = ST STM32F10xxB

Show debug information

Select Full library, and just use printf and scanf via Terminal I/O (select in View)

Configurate the linker

Use the linker configuration files: $WS_DIR$\..\FWLib\project\EWARMv5\stm32f10x_flash.icf.

This file is the IAR specific linking and loading file used to load in Flash and execute code and variables to target memories and regions. You can customize this file to your need.

Configuration Debbuger

D-Linker

1. In Downlolad

   • verify download

   • use flash loader (make sure that processor setting is correct or manually select proper one)

     For example, $TOOLKIT_DIR$\config\flashloader\ST\FlashSTM32F10xxB.board

Notes

Interrupt Handler

Observe the the Default interrupt handlers section in startup_stm32f10x.s:

        THUMB

        PUBWEAK NMI_Handler
        SECTION .text:CODE:REORDER(1)
NMI_Handler
        B NMI_Handler
        PUBWEAK HardFault_Handler
        SECTION .text:CODE:REORDER(1)
HardFault_Handler
        B HardFault_Handler
        PUBWEAK MemManage_Handler
        SECTION .text:CODE:REORDER(1)
MemManage_Handler
        B MemManage_Handler
        PUBWEAK BusFault_Handler
        SECTION .text:CODE:REORDER(1)

        .........

The keyword PUBWEAK means that if there is no method in the linking phase, the default interrupt handler will be publicize. Therefore, you can implement the handler anywhere provided the name matchs the default interrupt handler.