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Questions tagged [stm32]

The STM32 is a family of Microcontrollers using ARM Cortex processors by STMicroelectronics. There are multiple familys with different features and power: High Performance, Mainstream, Ultra-low-power and Wireless.

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RTC Crystal Severe Timing Inaccuracy [closed]

The issue is that my RTC 32.768KHz Crystal is oscillating at ~31.5kHz to 33kHz. This range includes using different load Capacitors while trying to troubleshoot. This was verified using the RTC_output ...
Kevin Lupercalia's user avatar
0 votes
2 answers
54 views

ArduinoModbus / RS485 conflict between Serial and Serial1

I am attempting implement ArduinoModbus on my STM32 Poternta H7 using the breakout board. Its well documented that in ArduinoRS485 that the RS485 object is hardwired. If you are using the PH7/Breakout ...
Dave by 2's user avatar
1 vote
0 answers
21 views

Sampling rate for Adafruit LSM6DSOX and Arduino MKR WIFI 1010

Please let me know if this post has the wrong tags, I will make sure to change it. My goal is to get the highest sampling rate possible from the Adafruit LSM6DSOX (6667Hz) using the Arduino MKR WIFI ...
infinite_yeet's user avatar
0 votes
1 answer
131 views

Adding a custom platform to PlatformIO

How can I add the STM32duino core as a custom platform to PlatformIO?
Ali.kavari76's user avatar
-1 votes
1 answer
116 views

Converting raw data of IIS2MDC into angle

I do not know that this is a good place for asking question but I have a 3 axis magnetometer IIS2MDC. I used this with Arduino. I downloaded the library IIS2MDC.h in Arduino IDE. I used example code ...
EDExpert's user avatar
1 vote
0 answers
201 views

Sharing data between M4 and M7 on a Giga R1 at high speeds

I'm working on a project to implement an attitude controller for a quadcopter. Loop times are extremely important as you can imagine. I already have tested code for a cascading controller (inner loop ...
246tnt's user avatar
  • 21
1 vote
1 answer
50 views

Rising and falling edge on GPIO_STM32G4

I am working with STM32G491RE.I am giving pulse to GPIO pin from function generator. That pulse will be 2 msec on time and 8msec off time.I need to make flag high if the signal from function generator ...
Sireesha's user avatar
0 votes
4 answers
189 views

Can arduino be used in industrial projects?

I'm developing an industrial project and my programming knowledge is limited to arduino. I'm planning to use either Atmega328 or STM32F103C8T6 chip in my pcb and to program it using arduino IDE. My ...
vignesh vignesh's user avatar
2 votes
0 answers
185 views

Ability to connect 2 or more w5500 Modules and deal with them as objects

I wish to create a rudimentary ethernet in/out - switch/hub where I can (sort of) daisy chain my boards. (I don't wish to use a ethernet switch/router/hub) One port would be acting as server The ...
Ohbhatt's user avatar
  • 176
1 vote
0 answers
202 views

Blackpill stm32F411 doesn't enter boot mode anymore

I cannot enter boot mode with my BlackPill F411 board anymore. It's currently running one my sketch successfully uploaded few weeks ago but now, I don't know what's happen. I've read this post which ...
fralbo's user avatar
  • 111
1 vote
0 answers
238 views

fatal error: avr/io.h: No such file or directory (on Windows 11)

So I'm using arduino 1.8.18 installed on zip file. I am using the HardWire library. The project is the STM32 quadcopter by joop brokking. http://www.brokking.net/ymfc-32_downloads.html complete error -...
IshA's user avatar
  • 11
3 votes
1 answer
793 views

Program SMT32 black-pill without pushing buttons or propriatary devices

Are there any options for programming an STM32 black-pill from the Arduino IDE without first having to manually push buttons to go into DFU mode or having to buy an ST-Link device? A solution that ...
NeilenMarais's user avatar
4 votes
2 answers
2k views

STM32 "black pill" won't enter DFU mode reliably

I'm following the standard process to put an STM32 "black pill" (STM32F401CC) into DFU mode so that I can upload from the Arduino IDE over USB: Hold down boot0. Press and release rst. ...
NeilenMarais's user avatar
0 votes
1 answer
740 views

Arduino Bluepill STM32 spi doesn't work

Has anyone successfully use SPI1 of those pins? SCLK -> PB3 SDIO -> PB5 SDO -> PB4 MISO CS -> PA15 I've tried to use another side of SPI1 pins on the other sides of the board (PA4, 5, ...
Settasak's user avatar
1 vote
0 answers
25 views

Any libraries exist for easy configuration via USB?

I have a device that would really benefit from a USB configuration tool. I'm envisioning "plug it into a PC, and it appears as a storage device with a YAML config file". Are there any ready-...
K4KFH's user avatar
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1 vote
2 answers
2k views

Difference between (*(volatile unsigned int *) and (volatile unsigned int)?

I have been watching tutorials on STM32 bare metal programming. I couldn't understand the purpose of the below code #define RCC_AHB1EN_R (*(volatile unsigned int *)(RCC_BASE + AHB1EN_R_OFFSET)) and ...
Just doin Gods work's user avatar
-1 votes
1 answer
307 views

variable 'LiquidCrystal_I2C lcd' has initializer but incomplete type

I have a problem with lcd, I have NUCLEO64 L746RG , I have Lcd Display and I2C connected to it. When I verify code it gives me and long error and I can not find the solution or cause of this error: ...
kristian311's user avatar
0 votes
2 answers
688 views

Blue pill acting as if it had 10bit ADC

I just got myself a STM32F103C8 Blue pill board. I am having funny behaviour with the analog readings. It behaves as if the unit was 10bits and not 12 bits. I uploaded the very trivial Arduino code ...
Noel's user avatar
  • 135
1 vote
0 answers
70 views

Flight controller board Reprogram

Recently in my scrap yard visits, more and more I find cheap quad-copters and remote controllers of all kind. I have built up quite a collection of boards and spare parts to create my own army of ...
GiuBu's user avatar
  • 11
1 vote
0 answers
181 views

Could not find AHT? Check wiring! How do i connect an AM2315C - Encased I2C Temperature/Humidity Sensor to a STM32F103C8T6?

am a little new at this so i sincirely need your help. So I have a temperature & humidity sensor i got from http://www.aosong.com/en/products-70.html which is probably based on the AM2315C - ...
Agent 96's user avatar
1 vote
1 answer
535 views

Serial Monitor in Arduino works, but other Serial Terminal work only one way

I have a Arduino code working on a Adafruit Feather STM32F405 Express, and as long as I test it with Arduino serial Monitor, everything works perfect. As I want to use a serial terminal (a C# ...
2diabolos.com's user avatar
2 votes
0 answers
193 views

UDP packet loss and very high ping time

Scenario I'm writing a code for Nucleo-144 F429ZI. It receives UDP packets (actually OSC bundles) and send back an answer when the command is completed. Issues It work fine most of the time. But there ...
Mark's user avatar
  • 393
1 vote
0 answers
137 views

STM32 "blue pill" st-flash error

I am trying to flash STM32 "blue pill" using arduino IDE as mentioned in the link https://www.onetransistor.eu/2017/11/stm32-bluepill-arduino-ide.html#no-bootloader Basically using MX linux ...
Deepak Kumar's user avatar
1 vote
0 answers
34 views

Unable to import the libraries correctly [duplicate]

I am trying to use the Arduino IDE 1.8.15 to program my Arduino. When I download the following code along with the libraries from the same link: https://github.com/SolidGeek/VescUart and using the ...
Dave's user avatar
  • 69
1 vote
0 answers
64 views

Prevent timeout while exchange data between two stm32

I am trying to exchange data (str data) between two STM32 throughout Lora connectivity. Both STM32 has a lora module and the connection between them is working fine. Based on two functions: ...
falcon_977's user avatar
0 votes
1 answer
1k views

My Arduino don't show port but is working

I have some problem with Arduino uno and asked here, so I have tried to work by my STM32F103C8 as alternative board, and solved my problem by this question: Arduino Port Not detected and can not run ...
Soheil Paper's user avatar
0 votes
1 answer
5k views

STM32f4 Warning: The core is locked up

I built a custom board that uses a STM32F411CEU6. My problem is that tried to upload a simple blink sketch (I'm using Arduino IDE with STM32 libraries) and I get the error: ST-LINK SN : ...
Miguel's user avatar
  • 209
0 votes
1 answer
572 views

How to switch HC-05 from DATA mode to AT mode?

I am asking how to enter from the data mode to the AT command mode without restarting and disconnecting any power supply. In other words, I am trying to make a driver to handle HC-05 module and now I ...
falcon_977's user avatar
1 vote
0 answers
147 views

AT+IPSCAN HC-05 Command

I have a HC-05 module, directly connected to an STM32 via UART interface and connected simultaneously to a mobile application in order to exchange real time data. I am trying to reduce the power ...
falcon_977's user avatar
1 vote
0 answers
385 views

Receiving DMX512 on STM32F103C8

tl;dr: trying to receive DMX512 (via a RS485 module) on a STM32 and not going well. I am trying to modify the firmware of a commercial lighting fixture with a STM32F103C8 clone as it's MCU. It ...
TheAutomator's user avatar
1 vote
1 answer
462 views

Stm32 Blue Pill Internal reference voltage Arduino IDE

I want to use the internal reference voltage (1.2V) of stm32f103 blue pill using Arduino IDE. I searched the whole internet but couldn't find anything. I need help with this. Thanks.
Farhan's user avatar
  • 11
1 vote
0 answers
161 views

NRF24L01+PA+LNA communication problem

I'm trying to communicate between two NRF24L01+PA+LNA modules. I know that NRF24L01+PA+LNA modules are consuming a lot of power and here is my 3.3V power circuit. The LM317 datasheet says it can ...
Alatriste's user avatar
  • 111
1 vote
0 answers
90 views

SIM phone DTMF Signal Frequency Problem

Is there a DTMF signal detection method in the smartphone [SIM] call?ex) keypad value or signal value [not frequency signal] If you press the keypad button while you're on the phone with two iPhones, ...
cris's user avatar
  • 11
1 vote
1 answer
387 views

Timer STM32 #error This code is designed to run on STM32F/L/H/G/WB/MP1 platform! Please check your Tools->Board setting

I have installed the library of TimerInterrupt_Generic for ArduinoSTM32 module via Arduino IDE, so i have tried to test the example of library as you can see below: and i have gotten this error: ...
Soheil Paper's user avatar
2 votes
2 answers
2k views

Am I at the limit of UART transmission time?

I'm currently using an STM32F103C8 (With an arduino core) to read 4 sensors at 1kHz, then send that data via UART (at 115200 baud) to another device. Each sensor returns a float, I also include an ...
nuggetbram's user avatar
1 vote
0 answers
35 views

RFMesh (NRF24) for STM32F1

I wanted to know the RFMesh library available for Arduino Uno can be used for STM32F1? Will it work? Or they have seperate set of library for STM32
Next-93's user avatar
  • 63
2 votes
1 answer
285 views

Connect SDRAM to STM32

Well, first of all hello to everything and thanks for reading my question. I am designing a board with STM32F730R8T6 MCU, and I want to connect MT48LC16M16A2P-6A to it which is 4MB SDRAM chip. The ...
Valentino Zaffrani's user avatar
2 votes
3 answers
2k views

How to use ADC interrupt on STM32 blue pill

I'm currently using the STM32F1xx boards from http://dan.drown.org/stm32duino/package_STM32duino_index.json To program my blue pill but I can’t find how to write the interrupt for the ADC. I’ve set ...
Beacon of Wierd's user avatar
2 votes
1 answer
292 views

problems with Blue Pill (stm32f103c8t6) direct register manipulation

I'm trying to access registers but I keep getting the "was not declared in this scope" error message. I'm currently using the STM32F1xx boards from http://dan.drown.org/stm32duino/...
Beacon of Wierd's user avatar
2 votes
0 answers
390 views

SG 90 servos randomly spinning

I started one project where i need 4 servos to control 4 grabbers jaws. i use STM32F103C8T6 with arduino IDE for programming it. The motor TZT Micro Servo 9g SG 90. First, I was playing with stepper ...
Петар Варга's user avatar
3 votes
1 answer
2k views

How to extract the binary from STM32 MCU

I have an already programmed STM32MCU. But I don't have the source code. I understand it is difficult to get the source code from the IC. I have heard some people can get the binary file from the IC ...
Dulara Malindu's user avatar
1 vote
0 answers
280 views

Problems connecting nodemcu esp8266 on my laptop

I have a new laptop and didn't run any development boards on it except some Arduino boards. But now, I have only nodemcu esp8266 and maple mini boards and trying to connect them but I get error ...
R1S8K's user avatar
  • 283
1 vote
0 answers
255 views

Problem with using SD and Adafruit_SSD1306 libraries at the same time

I am searched over the internet and found out a few similar questions, but non of them were helpfull, so I decided to open a new quetion. I tried both SD and Adafruit_SSD1306 libraries and they both ...
LucasN's user avatar
  • 71
1 vote
1 answer
8k views

pinout for stm32duino with bluepill

I am running the blinking LED program with stm32duino, and an STM32. By trial and error, and a bit of debugging, I have worked out the following: pin C13 blinks as well as the built in LED (except ...
Alex028502's user avatar
1 vote
1 answer
942 views

Problem with STM32 and SDFat lib on other SPI port

I am using STM32F103C8 and I am triing to compile a code with SDFat library. The problem is I need to use the second channel of the SPI1 (pins PB5,PB4,PB3, PA15): I found out that is possible to use ...
LucasN's user avatar
  • 71
1 vote
0 answers
291 views

Problem with Adafruit_SSD1306 library in .h fie

I have a project which includes OLED display, so I decided to use Adafruit_SSD1306 library. But I have problem with compiling code, which uses this library, in another .h file. When I use this library ...
LucasN's user avatar
  • 71
1 vote
0 answers
899 views

STM32F103 (Blue Pill) with stm32duino + BME280 + SSD1306 strange behavior

I'm going crazy trying to understand some strange reads from BME280 sensor. With this code: #include <SPI.h> #include <Wire.h> #include <Adafruit_GFX.h> #include <...
GinoC's user avatar
  • 111
0 votes
2 answers
1k views

STM32 and SDFat - Can't create file in directory in SD

I'm using the SdFat.h library on a STM32 and I can successfully create a file in the root directory using SD.open("test.txt", FILE_WRITE); but my code fails to create SD.open("DATA/data_test.txt", ...
JingleBells's user avatar
3 votes
1 answer
492 views

Uploading arduino code to race drone flight controller

I am working on VTOL aircraft and currently I am looking for some good board as flight controller (FC). I could made it by myself, but it requests lot of time. I was thinking about one of fpv drone FC ...
LucasN's user avatar
  • 71
1 vote
0 answers
543 views

STM32duino Can bus library

I couldn't find any library for can bus for STM32duino (Maple Mini) on arduino or even on STMcubeIDE I found one library on github but it doesn't compile it has a lot of error (its a fork of the ...
Jwdsoft's user avatar
  • 111