Weblog | Programming STM32 Utilizing Simulink

Introduction

Welcome readers, On this weblog, we will probably be going via step-by-step process for programming STM32 utilizing Simulink. Earlier than going on to the steps, let's talk about why we have to program STM32 utilizing Simulink? STM32 makes use of ARM cortex M structure. It's utilized in many functions due to its decrease price and good efficiency. Programming STM32 utilizing Arduino IDE is fairly easy as there are lots of libraries developed by the individuals. However while you begin creating advanced embedded or management programs, writing bare-metal code utilizing Arduino IDE is a busy factor. Right here comes the Simulink to make this course of simpler. You possibly can develop the advanced programs utilizing blocks and take a look at them utilizing Simulink functionalities after which generate a "c" code which might be compiled and generate a binary file in order that this binary file might be instantly flashed into the STM32. That is it achieved now the advanced system is deployed on the bodily stage. On this weblog, we will probably be utilizing Simulink to develop the mannequin and embedded coder to generate the "c" code for a similar mannequin, STM32CubeMX, for creating a configuration file (.ioc) and MDK-ARM from Keil to construct the undertaking and flash it into the controller. We will probably be utilizing STM32f103c8t6, also called Blue Capsule, as a goal MCU.

Supplies Required

Let's undergo the required software program and packages:

• From MATLAB:
  • MATLAB Coder (Add-On)
  • Simulink Coder (Add-On)
  • Embedded Code (Add-On)
• From STMicroelectronics:

• Any one of many following Toolchain:

{Hardware} Required:

• STM32F103C8T6 (Blue tablet) microcontroller
• STLink v2
• Breadboard
• 4 × feminine to male jumpers

Let's undergo the method in a step-by-step method.

Step-1: Set STM32-MAT software program path in MATLAB

After putting in all of the software program and add-ons, open MATLAB, choose the "set path" choice and choose the folder created on the location "c:/MATLAB/STM32-MAT/STM" through the set up of the STM32-MAT/TARGET toolkit.

Notice: When you did not discover the STM32 folder on the above-specified path, then be sure that STM32-MAT/TARGET toolkit is put in accurately. Click on right here to obtain the utility.

Step-2: Create a undertaking in STM32CubeMX

Now open STM32cubeMX and create a brand new undertaking by choosing "ACCESS TO MCU SELECTOR".

In MCU/MPU selector, enter the half quantity as "STM32F103C8T6" and choose the "STM32F103C8TX" choice within the checklist, and click on begin undertaking.

Step-3: Configure the clock and GPIO pins

After clicking begin undertaking, you may be getting Pinout view. Now arrange the clock. In system core, choose the "RCC" choice after which on the "Excessive-Velocity Clock" part choose "Crystal/Ceramic Resonator".

Now set the GPIOs. Choose "PC13" and set it as "GPIO_Output".

Now choose the GPIO choice within the System Core part after which choose the GPIO and verify the modified verify field. Now change the Pin configurations as proven within the under picture.

Step-4: Venture Supervisor & Generate the Code

Now open Venture Supervisor, edit the main points as proven within the determine, and click on generate the code.

Shut the opened dialogue field that's popped out after clicking the code technology tab and open MATLAB.

Step-5: Create a mannequin within the Simulink

Create a clean mannequin in the identical folder the place the "blink.ioc" file is saved, as proven within the under determine.

Now open the Mannequin Settings from the simulation tab and alter the parameters within the solver part, as proven within the under determine.

Open the Code Era tab and choose the "STM32.tlc" choice as a System goal file utilizing the browse choice. Now choose STM32 Choices beneath the Code Era part.

Verify the "STM32CubeMx path replace" verify field and choose the "Replace put in path" choice. Now apply the modifications and shut the Mannequin Settings dialog field.

Step-6: Insert STM32_Config block within the mannequin

Now open "Library Browser" and choose "STM32_Config" block, add this block to the mannequin.

Notice: When you did not discover the "Goal Assist Package deal – STM32 Adapter" choice, then be sure that STM32-MAT/TARGET toolkit is put in accurately. Click on right here to obtain & set up it correctly.

Double click on on the "STM32_Config" block, choose the "Choose STM32 configuration file" choice within the opened dialog field. Now choose the ".ioc" file that's created in step 4.

Step-7: Create the mannequin

Full modeling by choosing and arranging the identical blocks as proven within the under determine.

Following are the heartbeat block parameters.

Step-8: Compile and generate the code

After finishing modeling, compile the mannequin by choosing the "Replace Mannequin" choice beneath the "Modeling" tab.

After compilation, go to the "APPS" part and choose Embedded Coder.

Now Construct the undertaking (it'd take a while). Within the second field proven within the under determine is the code report generated by the Embedded coder.

Step-9: Add the code into the {hardware}

After code report technology, open "STM32CubeMx" and choose the "Generate Code" choice, Now a dialogue field choices. Choose the "Open Venture" choice.

Earlier than opening MDK-Keil IDE, let's undergo the {hardware}.

Earlier than flashing the binaries into the STM32 toggle the "Boot0" pin of the STM32 to" HIGH". Join the connections between STM32 and the STLink v2 as proven within the under determine.

Now open MDK-Keil IDE and Construct the undertaking. After this, you may be getting '0' errors and '0' warnings. Now Load the mannequin into the STM32. You may be getting a "completed loading" message within the console.

Now toggle again the "Boot0" again to "LOW" and press the reset button as proven within the bellow determine.

Now the Inbuilt LED begins blinking.

Conclusion

"Simulink" and "Embedded Coder" made prototyping advanced embedded programs and management programs simpler. We are able to take a look at the system or mannequin in Simulink for the errors and efficiency earlier than deploying the binaries of the mannequin into the {hardware}.