[CMSIS-RTOS RTX] How to Porting RTX on STM32F429 Discovery Board, Step by Step.

Porting Purpose:

• Porting CMSIS-RTOS RTX on STM32F429 Discovery Board.
• Create one startup task and two LED toggle tasks.
• Check by Logical Analyzer.

Test Video:

Test Code:
          STM32F429_CMSIS-RTOS_RTX_LED_Toggle_Code


1. Prepare Template project for porting purpose.

•     Download STM32F429I-Discovery example code from ST  Website.

             https://www.st.com/en/evaluation-tools/32f429idiscovery.html

• Click "STSW-STM32138".

• Click "Get Software".

• Click "ACCEPT".

• Click "Login/Register".

• Then You will get the code packer(en.stsw-stm32138).

• Unzip the code packer.

• Enter to the "Projects" folder and remove unused code.

• Copy the RTX source code from "your keil folder/ARM/RL/RTX" to "Template" folder.

• remove unused code.

 

• That's all for prepare step.

2. Porting RTX, Step by Step.

• Open Project by Keil-MDK, Project path: Projects/Template/MDK-ARM/

• Click "Options for Target".

• Select "Target" and Change Operating system from "None" to "RTX Kernel".

• Open "main.c",  include "stdio.h" and "RTL.h". 

• Open "stm32f4xx_it.c", remove "SVC_Handler" and "PendSV_Handler" and "SysTick_Handler".

• Add "RTX_Conf_CM.c" into Project, The "RTX_Conf_CM.c" path is "Project/Template/RTX/Config".

• Click "RTX_Conf_CM.c" first, then you can Click "Configuration Wizard".

• Below is the default setting.

• Change the setting like Below.

• Add RTX define and global register like below.

• Add "AppTaskLED3" task and "AppTaskLED4" task.

• Add "AppTaskCreate" function and "AppTaskStart" task.

• Add LED3 & LED4 initial functions in main loop.

• Add "os_sys_init_user" function in main loop.

• That's all for porting step and you can download code to Discovery board after compiler. 

3. Check the result by Logical analyzer.

• Connect the Logical analyzer with PG13 & PG14 on Discovery Board.

• Check the PG13 and PG14 output signal.

• LED3 toggle setting is 1000msec and LED4 toggle setting is 500msec.