STM32 Board Bring-Up (Firmware and Test) - Phil's Lab #54

Basic board firmware bring-up of the 'new' LittleBrain++ PCB featuring an STM32F4 microcontroller, sensors, and USB. How to write simple test firmware (I2C, USB), set-up STM32CubeIDE, and transfer data from a schematic to software.

[SUPPORT]

[LINKS]

[USB CDC CODE]
After include statements:
static uint8_t lineCoding[7] // 115200bps, 1stop, no parity, 8bit
= { 0x00, 0xC2, 0x01, 0x00, 0x00, 0x00, 0x08 };

in CDC_Control_FS:
case CDC_SET_LINE_CODING:
memcpy(lineCoding, pbuf, sizeof(lineCoding));
break;

case CDC_GET_LINE_CODING:
memcpy(pbuf, lineCoding, sizeof(lineCoding));
break;

[TIMESTAMPS]
00:00 Introduction
00:35 First Steps

01:40 Tag-Connect SWD Programming Header/Connector

02:24 JLCPCB and GitHub Repo
03:00 Altium Designer Free Trial

03:16 Hardware Overview
04:59 STM32CubeIDE Basics
05:59 Pinout
08:14 Clock Configuration
09:15 Programming and GPIO (LED) Test
12:08 I2C #1 (Inertial Measurement Unit)
16:58 I2C #2 (Pressure Sensor)
19:11 USB (Virtual COM Port)

23:14 Outro

ID: QIBvbJtYjWuHiTG0uCoK

[Eldon_Dice]

Yes, yes, more little brain! I love how you get into the hardware and firmware without any fluff. Very direct and practical.

[havetechshreekrishna]

Thank you so much. In 23 minutes you get idea about pcb and firmware.
Thank you for sharing.

[sumantkhalate]

As usual amazing content Phil!
Just an additional thing I would like to add if I was designing the board is the provision to toggle the BOOT0 pin so that I can use the internal USB DFU to update the firmware through the USB without opening the device enclosure.

[rraheem_p]

Good work as usual, I follow your pcb and firmware guides and so far made a couple customs boards that work. Keep up the good work

[michaeljohnson]

Just came across your video, and I thank you for this eloquent explanation of Board Bring-Up. Many thanks!! 👍👍👍

[JamesEggleston]

I like that tag connector, that 's cool as!

[xrayonthemove]

Very good video. Please upload more such videos ☺️

[KerbalLauncher]

The first thing I do with a new board design straight from fab?
Power it up with a current limiting power supply and make sure all the LEDs light up.
Flash it with the head of master and run the entire feature set.
Done

[TheCoolest]

Cool vid. Still waiting for my STM chip to be available but lead times are a year plus because the events of the world, and just feeling too lazy to redesign around a new chip.

[CarlosVillegas-tq]

Just came across this video. Great work, clear and practical as always. How did you find out how to get the USB Virtual COM Port working? I watched an older video I think for a previous version of the Little Brain and configured the USB Virtual COM Port for a board I just got from JLCPCB using the STM32F411re. It wasn't working and I thought I made a mistake in my board. But it was the software, with your tips, it's working just fine. Thanks.

[mathssoso]

Thanks for these great tutorials phil !
How can I program the stm32f4 of my custom board which has only one usb type c connector ? I do have an st-link v2 programmer but is there a way to connect the jtag on the st-link/v2 to usb c ?

[ffxx]

hi @PhilsLab thank you very much for your clear and effective tutorials. So clear to convinced me to explore the feasibility of designing a basic STM32-based custom board. Unfortunately, before going to manufacturing, I'm still unsure about a few things, so I would like to submit you some questions about. How can I get in touch with you? Thanks!

[EmbeddedEnigma]

any plans on making a video regarding creating drivers for gyroscope which u are using in PCB ?

[thekaduu]

Brings back memories... I was using CooCox IDE back in 2017 which was a pain in the ass. I discovered CubeIDE and it was much better workflow.

[christianmollenberg]

Nice video, thanks! How about putting the preliminary code, which you just wrote to bring up the board, into a self-test function?

[aravindsivasubramaniam]

I have designed a custom board using stm32f730 and I've enabled USB virtual COM port, and my computer recognizes the IC when I plug in the USB cable but says driver error...I tried every thing...doesn't work.

[qbitsday]

Truely Amazing Classes ! Is there any chance to export your design (schematic and PCB) to KICAD format ?

[gunlee]

how much was your current consumption when powered up initially?

[Kyle-vqqt]

Thanks for another great video. Where are you finding stm32f4 chips in stock?

[karama]

Hi, Phil, how long took you to master PCB Embedded Programming because your the one(Videos) who inspire me in these fields.