Learning STM32 NUCLEO-F303RE for EV and Embedded Systems (Complete Beginner)

[Anderson_EEE]

Hello everyone,

I'm a final-year Electrical and Electronics Engineering (EEE) student aspiring to build my career in the Electric Vehicle (EV) industry, particularly in areas such as Battery Management Systems (BMS), Power Electronics, Motor Control, Embedded Systems, and eventually R&D.

I recently decided to learn the STM32 NUCLEO-F303RE as my primary development platform because I understand it is widely used for motor control, real-time embedded applications, and industrial systems.

I am a complete beginner to STM32 and embedded systems (although I have basic C programming knowledge), and I'd like to learn it the right way rather than just following random tutorials.

I'm looking for guidance on the following:

1. What is the best learning roadmap from beginner to advanced for the STM32 NUCLEO-F303RE?
2. In what order should I learn the peripherals (GPIO, Timers, PWM, ADC, UART, SPI, I2C, CAN, DMA, etc.)?
3. Which official documents should I read first (User Manual, Datasheet, Reference Manual, Application Notes)?
4. Which concepts should I understand deeply versus those that can be learned later?
5. What beginner, intermediate, and advanced projects would you recommend for someone targeting the EV industry?
6. Are there any recommended books, courses, YouTube channels, or ST application notes that you consider essential?
7. At what stage should I start learning FreeRTOS?
8. What common mistakes do beginners make while learning STM32, and how can I avoid them?
9. Are there any EV-oriented example projects or reference designs from ST that you would recommend studying?

My goal is not just to learn STM32 programming but to understand how it is used in real engineering applications such as BMS, motor control, battery monitoring, power electronics, and automotive embedded systems.

I can dedicate around 6 hours per day to learning over the next few months, so I'm looking for a structured roadmap that helps me build both strong fundamentals and industry-relevant skills.

Thank you for your time and guidance.

[waclawek.jan]

1. In microcontrollers, there is no “best”. Not in learning roadmap, not in programming aproaches. But whichever you choose, be warned, that there’s no free lunch, and unlearning any shortcuts you take is extremely hard if not impossible.

This said, the way recommended by ST is to use CubeIDE+CubeMX+possibly Cube/HAL. Cube/LL is available, but in my opinion it’s a superfluous renaming of registers.

My recommendation of the hard way is to use register-level programming. There are no ready-made guidelines, no support from ST. I’ve tried to write up something and something, but my time and resources are severely limited. You may want to look around the internet too.

2. In that order, maybe bring DMA forward after TIM

3. All of them; and add Errata to your chip, manual and schematics to your Nucleo board. You can leave appnotes for later perhaps, most of them are not that much helpful. The Reference Manual is your bread and butter, read at least up to the GPIO chapter and skim the rest until you start to work with given peripheral. Don’t be deterred by the number of pages. Most chapters are relatively confused narrative which at least skim through (there are snippets of wisdom in them, scattered around), but study thoroughly the block diagram at its beginning and the registers chapters at its end.

4. Experiment, experiment, experiment. Write many experimental programs. By many I mean dozens. YES, DOZENS. Give yourself fun tasks - blinking is good start and it can be done in dozens of ways - formulate theories how the hardware works and/or how to do things in software, then implement and enjoy. Many things won’t work as you expect, that’s where you truly learn.

5. Any. Start with the simple, and as I’ve said, do them many. You’ll quickly realize what’s fun and what’s not. Did I mention it HAS to be FUN?

6. I wish.

7. I never did. I have some basic understanding of it and I marginally participated in projects where it was used, but I actively avoid it. It’s a whole different world from the loop/state-machine/interrupt based “traditional” mcu programming, with its rules and mindset, and it’s probably either one or the other, I can’t imagine one could have a mindset working equally well in both. The promise of RTOS providers is, that it solves notorious problems, but my take is, that it just replaces those problems with other notorious problems. The cost/benefit is IMO not in favour of RTOS for other than big multi-person projects, although some tasks are indeed hard to pull out without one (notoriously, using extensive libraries e.g. for USB or ETH, which are not written with the “traditional” method in mind). YMMV.

8. I don’t teach so I don’t know.

9. I don’t know.

> structured roadmap that helps me build both strong fundamentals and industry-relevant skills

Well, I hope it will work out for you. My personal experience is anything but.

JW

[waclawek.jan]

[double post due to technical issues, can’t erase]

[Andrew Neil]

 

[LCE]

100% agree to Jan, esp. there are no shortcuts - as with most things in real life.

 

And now for something completely different:

do not rest on embedded SW, learn hardware.

Over the last 15..20 years I found that too many EEs coming from college / university have become rather programmers than “circuit designers”.
And many even lacking the skills to understand the basics of how to “connect” a microcontroller / SOC / whatever and its interaction with the real world.

[Andrew Neil]

do not rest on embedded SW, learn hardware.

Absolutely!

 

​@Anderson_EEE - Embedded soft/firmware doesn’t live in isolation from the hardware - it is intimately connected.

Back to your “beginners problems” question, a common one seen all too often here is people who look only at their code when facing a problem, and never consider the hardware.

You need to be able to use multimeters, oscilloscopes, logic analysers, etc - and know how & when to apply them.

• When your LED doesn’t blink, it’s no use looking at the code if the LED is wired backwards!
• When your I2C doesn’t work, it’s no use looking at the code if the pullups are wrong or missing!
• etc, etc, ...

[Andrew Neil]

I recently decided to learn the STM32 NUCLEO-F303RE

Don’t focus too narrowly - think about transferrable skills rather than specific part numbers 

 

In what order should I learn the peripherals (GPIO, Timers, PWM, ADC, UART, SPI, I2C, CAN, DMA, etc.)?

As suggested here, 

1. GPIO first - that’s your “Blinky” LED flashing
2. UART next - having working UART is invaluable for debugging, diagnostics, configuration, etc ...

After that, it’s pretty much down to what you need for your particular projects/interests.

 

What common mistakes do beginners make

Trying to do everything all at once!

Start simple; build step-by-step

 

 

[Andrew Neil]

aspiring to build my career in the Electric Vehicle (EV) industry

Note that there are no automotive-qualified STM32s; eg, see:

​@Peter BENSCH 

 

Here is ST’s Automotive microcontroller range: https://www.st.com/en/automotive-microcontrollers.html