Truly brutal

lmao

Dont be a freeagent in life

It's so unexpected, isn't it?! Glad you were able to figure it out

Thank you!

How do you did it?

Glad you figured it out, I saw the comment on my other video and realized you had the same boards that I did

how did you make windows recognise it in dfu mode?

It should recognize it, if it's not recognizing any USB connected then check your USB cable or try a different one. Otherwise try a different computer maybe?

@@CalebMartingthe driver it's using doesn't work, wich one do you use?

Thank you!

If you hold boot0 when you press and release rst, then release boot0 it doesn't work? You might have just gotten that timing by chance when you take like 15 times

Thank you for that heating trick. That heating trick also tackles picky button timings or atleast for me it did.

DUDE WTF!!!! I HAD THIS SAME FRUSTRATION! but still with the heating method it still require some luck with boot sequence

Thank you! That's a whole separate video lol. Someone else made a video on some of the differences which you should go check out but he used Mbed instead of Arduino. The information at the beginning is still good though. kzfaq.info/get/bejne/h6mUobJlmLime2g.html if you want to suggest some ideas for videos like things that are hard for you to learn or you want to see, you can go ahead and join the discord in the description. You can also get help if you get stuck.

For starters the blue pill makes you a simp but the black pill doesn't.

The STM32 Arduino core is what would change it. I've mostly had them work in the past but sometimes it just doesn't want to compile or it's not defined. I figured I would just make sure that it wasn't a potential failure point. Thank you

I'm not entirely sure, best way would probably be guess and check or you can look at the configs on the actual stm32 Arduino core for that board

I've been so busy with everything. You can join the discord and we can definitely help get you started there. You can actually help us write the script for that video too if you would like. I just need to start filming and making them again and get off my butt lol

You must enable usb, and generic CDC supersede usart, etc like I explained in the video. If that doesn't work please let me know

@@CalebMarting Yup that ended up working. I had it enabled before but I must of forgot to set it again after installing the new library for STM32. Thanks again and keep up the great videos!

Try another USB cable, some don't have data lines

This is the type of comment that I love to receive. I tried to learn cube IDE but it just wasn't worth it for me. There are some guys that use it in the discord linked in the description. arduino's really good at bodging things together for prototypes and such. But using something like cube IDE is just like you said.

No I've never seen that before, that's really weird. If you want to join the discord linked in the description we might be able to debug more there but I've never seen that before. Please let me know if you find a solution to that issue.

Yep, congratulations you found the Easter egg :p

Answering my own question here. Weact 3.0 have some funcky behaviour with the onboard oscillator as @maytoolsmike describe. The other great solution that I found was to hook a ftdi tx and rx pin to a9 and a10 ( uart pin) And Also the power pin to gnd and 5v ( ftdi on 3.3v mode) Somehow the oscillator of the uart provide a "correction" and it just works. It doesn't use ftdi, just use the oscillator for enteribg the dfu mode. It's kinda iffy but it works reliably

Did you solve it , I’m stuck also

I'm not entirely sure. They did the same thing for the blue pill so I would start looking at how they did it there and see if it's applicable to this. Let me know if you make any progress

​@@CalebMarting Yeah I am really looking forward to your video going more in-depth on platformIO. I'm fairly new to it. Seems I can't use upload_method=serial with the Nucleo equivalent board. And the generic STM32F411CEU6 and WeAct v2.0 options don't support MBED platform, least not natively. If I attempt to use upload_method=serial, I get an "ERROR: Invalid parameter specified" and I probably need to configure platformio.ini to use a custom upload command since the one for the Nucleo board doesn't want to cooperate. I'm hoping the uploader does not check to validate the CPU is an 411RE variant instead of an 411CE. If I set the environment to match the board I have but set the board = nucleo_f411re, then I get Unknown/unsupported device (Device ID: 0x431). I'm in over my head a bit with this one, trying to get away from Arduino.

Couple things to try: Another USB - sometimes they don't have data lines Restart your PC Try another board if you have it Manually install the USB cdc drivers - can be downloaded from STM website Make sure it's actually in boot mode, it will act like this when not in boot mode

@@CalebMarting Thanks, before I saw I used a USB UART that I had around from a plane station to simulate it on the PC, I adapted it to the corresponding outputs to create a COM port and connection to the microcontroller and thus load the data, thanks everyone modes.😊

You can use whatever serial ports you like on what ever pins you like with this: #include HardwareSerial.h HardwareSerial SerialX(rx, tx); Then you can use SerialX like any other Serial object, with .begin and such. You can do this for as many unique serial ports as you would like, for instance HardwareSerial SerialX(PA10, PA9); HardwareSerial SerialY(PA3, PA2); Make sure you also dont use the same port twice, e.g. you can only use PA10 and PA9 OR PB7 and PB6, since this is hardware serial. You can also still use the default USB serial with this method.

@@CalebMarting Hi Caleb, it cant find the file HardwareSerial.h which one do i have to download...or where can i get HardwareSerial.h ? its for the black pill stm32f411 thank you for helping.im usually very good with arduino ... a couple of years... but new to the M4 processor in arduino. im just using the usb cable to upload and pressing the buttons, i have not added a bootloader, its programming fine, i have tft screen going... but no access to other serial ports other than the generic 'serial' through the usb to serial monitor in arduino.... that one works fine. :o)

Hmm, it worked for the f1 processors. Just to be certain you are using the Arduino core STM32, and you put "HardwareSerial.h" in quotes right? github.com/stm32duino/Arduino_Core_STM32/blob/master/cores/arduino/HardwareSerial.h

@@CalebMarting Hi Caleb, im nearly there.... i have now put the " quote marks" on and copied "HardwareSerial.h" as an added file... it seems to accept it fine and shows no errors.... however im still a bit lost on which port is which, the usual serial.println("hello world"); does NOT now print to the serial monitor through the usb port like it was doing. i simply want to use the usual USB port for serial...which works if i do not add another serial port. but adding the new serial port makes the USB serial stop working. any help please.... been 2 days now! eeeek! (if i add a line HardwareSerial Serial1(?,?); it says it is already defined, i also would not know which pins i should put in there as i want it to use the USB serial as usual) here is my code: #include "HardwareSerial.h" // RX TX HardwareSerial Serial2(PA10, PA9); void setup() { Serial1.begin(9600); delay(100); Serial1.println("Serial ONE!"); // to arduino usb serial monitor Serial2.begin(9600); delay(100); Serial2.println("Serial TWO!"); } .

Hi caleb...okay got it working! thanks for your help! here is code for others: (i dont need to #include 'HardwareSerial.h' at the beginning... it must find it automatically) HardwareSerial Serial2(PA10, PA9); void setup() { Serial.begin(9600); Serial2.begin(38400); } void loop() { if (Serial2.available()) Serial.write(Serial2.read()); if (Serial.available()) Serial2.write(Serial.read()); }

F401 is 84mhz, but I believe the f411 is above 100

These boards have a USB-C connector, it's been out for a while but still very new and not well adopted, my Android phone has one so that's why I have the cable

@@CalebMarting Is that what is on the iPhone? I have one the iPhone charger will that work? Thanks for letting me know. I like the looks of the black pill better. I have other projects so I am just pecking at it for now.

It is not, iPhone uses the lightning connector. you should be able to go to any big box store and get a USB-C cable though for pretty cheap. Just make sure it has data

also make sure you use a type C DATA cable.... sometimes from the pound shop they are only for charging and the DATA lines are not connected!

The weact f4 mini GitHub has all of the hardware schematics and pinouts I believe, let me know if you can't find it

@@CalebMarting I am also looking for the pinout. I have the exact green board you show in your video. It is the STM32F401ccu6 GH210 VQ CHN 609 st e23 Z (marked on the chip) ---the e23 is in a circle. It has the 3 dip switches also as yours shows. Recent purchase on Amazon, Nov7. I have found many hardware schematics, however, none for this specific board. Anyone that can point me to documentation would be appreciated. I have it working, but do not know what all of the features or each header pin has available. Thanks in advance.

github.com/WeActTC/MiniF4-STM32F4x1/tree/master/HDK it's one of them in here

CubeMX is a different program. STM32 Cube Programmer is used by Arduino to upload code to the black pill. There's a command line program included in the install that it uses.

@@CalebMarting oh thx.

I'm not sure, it is a weact f401 board. You can join the discord and we can try to help you there if you want, otherwise if you use the keyword weact you should be able to find it

@@CalebMarting nvm I found it. In the Amazon page, there is a google drive link to a folder with data sheets and schematic. I would love to join the discord though.

discord.gg/wrMcmXA I run this discord, see you there

Huh, very weird, don't know what would cause that. Glad it works though!

arduino 1.9 ? did they release that ?

PA just means Pin bank A, it doesn't mean analog, that's why there are PA, PB, and PCs. Please look at a pinout diagram to find what analog pins www.mischianti.org/wp-content/uploads/2022/02/STM32-STM32F4-STM32F401-STM32F401CCU6-pinout-low-resolution-1024x623.jpg Here ADC means analog to digital converter which is an analog input, but you'll notice some of those are on the PB pins as well and not all of the PA pins have those. Pinout diagrams are how you'll find what pins have what

@@CalebMarting this is very helpful. thanks for this mate 😁😁

It doesn't show up before you upload code, or after? You don't need a port for uploading code to this, it goes through a different protocol called DFU. If you do have a port other than this device, you may have to select it to get code to upload, but it should work

@@CalebMarting Thank you, the port didn't show even after uploading it turns out on my board the nrst needs to be pressed first then the boot and release nrst, now it works

The weact bootloader is actually just the STM 32 F4X1 ROM bootloader, it's actually just part of the official chip, not programmed in or custom for weact. I don't know why complaining about the COM, since it should be dfu mode, but if you have a com port on your computer you may need to select it to trick Arduino into working

@@CalebMarting It does not show up as a COM port. Just as an STM Device in STM Mode. Definitely, there is a difference between WeAct and a clone. The Key button does not work as on their boards.

Do you know what clone specifically this is? You may be able to find a schematic, make sure that you can find which button boot is, or if you can't find it manually pull it high or low depending, you'll have to look at the data sheet for the chip

@@CalebMarting When I use boot and rst buttons, it goes into somewhat boot/dfu mode. In STM32CubeProgrammer I can see it as a target device with all corresponding data. When I reset it, it can not be accessed through STM32CubeProgrammer. So it works, sort of... On 411 I successfully installed CircuitPython. I can upload a program through STM32CubeIDE. Boards are ok. When in boot/dfu mode I don't see it as you, as an STM32 BOOTLOADER, but as an STM Device in STM Mode. That said, I can not upload a sketch through Arduino IDE using a USB C port. Only ST-Link or Serial.

And you do have dfu selected in Arduino as the upload method?

Yeah so that's intentional. If you don't have generic serial supersede uart and USB support on. If you turn those two settings on then USB support will be enabled and you'll see the USB port.

@@CalebMarting Thanks a lot for your help. Have you tried the ADC pins? It got me wondering since the datasheet says the uM has 12-Bit resolution for ADC, while I am getting only 10-Bit Resolution.

Someone else on the discord (linked in the description) was trying to figure that out. You can join and see if they made any progress

Be sure that you seected CDC on USB Support. This activate the serial port COM.

Pretty sure there are much better ways to program for the i9 :p Brain***k is a pretty popular language for it I've heard Hello World: ++++++++[>++++[>++>+++>+++>+>+[.>---.+++++++..+++.>>.+.>++. You'll also need to have the Windows 10 bootloader, some supporting hardware modules, and a BF interpreter executable installed haha

@@CalebMarting oh rly?! but why you use ardu ide to program F4 (fourth series! ) ?

Lol I hope we're both joking 'cause I know I am. Arduino is a great way to get up and running with stuff that you wouldn't normally be able to. I know a lot of people in our discord have issues with getting cube IDE working and stuff. It also exposes some features like the registers and stuff so you can still do things like hardware encoder stuff. it's the same question of why would you use Python when C is so much faster.Because with Python you can bodge something together in 10 minutes versus C being a lot harder to debug and get it up and running. For the same question C versus assembly C provides abstraction which just makes things easier but you lose that low-level control. Everything is trade-offs

Why do you want to program a thermonuclear device? IT'S GONNA BLOW! RUN FOR YOUR LIFE!!!

Why

​ @Caleb Marting it spoils human brain.) Nowadays you can easily start programming MCUs like a normal engineer but Arduino is everywhere! Articles just gives you instructions you don't understand. Arduino forces you to think that educational devices can do real work. And then people trusts quite dangerous things to it -- like an elevators. Arduino don't teach people properly but gives them illusion of knowing.

I call it a gateway drug, it's what got me into ST devices, HAL, etc. It's great for bodging things together. It's the old saying, when all you have is a hammer, everything looks like a nail

Looks like it might be locked from writing? You can try putting it into STM 32 cube programmer and seeing if the write protection is enabled, I'm not sure what else would cause that

@@CalebMarting Thanks for the reply 😊 . I checked the write protection, it was not enabled. My all attempts to program the board through the usb port failed... but anyhow i managed to program it using the USART pins A9 and A10 using my D1 mini as usb to serial converter (as i didn't had one of those usb to serial devices at that time) and using STM Flash Loader Demonstrator....