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.
45
questions
2
votes
2
answers
83
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 ...
-1
votes
1
answer
61
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:
...
0
votes
2
answers
101
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 ...
- 135
1
vote
0
answers
315
views
Can BACNET Server/Client be developed using ARDUINO
I am new to the BACNET Stack. I want to develop an embedded controller work as a BACNET client device which can access objects and properties from BACNET devices and control an AHU system.
I would ...
- 11
1
vote
0
answers
47
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 ...
- 11
1
vote
0
answers
109
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 - ...
- 11
1
vote
1
answer
273
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# ...
- 121
1
vote
0
answers
133
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 ...
- 303
1
vote
0
answers
39
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 ...
- 11
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 ...
- 69
1
vote
0
answers
31
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:
...
- 23
0
votes
1
answer
533
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 ...
0
votes
1
answer
3k
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 : ...
- 209
0
votes
1
answer
234
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 ...
- 23
1
vote
0
answers
97
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 ...
- 23
1
vote
0
answers
164
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 ...
- 335
1
vote
1
answer
227
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.
- 11
1
vote
0
answers
82
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 ...
- 111
1
vote
0
answers
76
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, ...
- 11
1
vote
1
answer
269
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:
...
2
votes
2
answers
782
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 ...
- 141
1
vote
0
answers
31
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
- 63
2
votes
1
answer
204
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 ...
2
votes
3
answers
1k
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 ...
- 123
2
votes
1
answer
173
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/...
- 123
2
votes
0
answers
265
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 ...
- 21
2
votes
1
answer
969
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 ...
- 121
1
vote
0
answers
180
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 ...
- 283
1
vote
0
answers
188
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 ...
- 71
1
vote
1
answer
4k
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 ...
- 115
1
vote
1
answer
698
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 ...
- 71
1
vote
0
answers
226
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 ...
- 71
1
vote
0
answers
732
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 <...
- 111
0
votes
2
answers
814
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", ...
- 155
3
votes
1
answer
376
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 ...
- 71
1
vote
0
answers
461
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 ...
- 111
0
votes
0
answers
956
views
Stm32 Blue Pill Internal ADC Voltage Reference Configuration
I am programming an STM32F103C8T6 Board in Arduino IDE. I want to change the value of the internal Voltage Reference for the ADC. How can I achieve this in Arduino ide?
0
votes
1
answer
231
views
delayMicroseconds not working on STM32F103C8T6
Due to the fake STM32F103C8T6 module in the market, the delayMicroseconds function is working qucker than expected, when I expect a delay of 1000 us , I get a delay of 500 us. Is there a better method,...
0
votes
2
answers
157
views
Where to find the attribution name for a certain board?
I'm working on lcd128x64 spi library. And was working with my Arduino Atmega328p chip.
Now I want to run the code with my maple mini board too.
So I have to specify the name on the pins for each chip ...
- 283
0
votes
1
answer
157
views
Function pointers that call one function
I'm reading a library file timer.h for STM core library that I just installed in Arduino hardware folder.
Of course, there has to be a lot of questions for me as a beginner about many approaches/...
- 283
0
votes
0
answers
37
views
Why does this scope-based timer not work as intended?
I wrote the following scope-based timer to help me profile my code and improve its efficency, but in testing I found that it reports durations far shorter than it should:
class CodeTimer {
public:
...
- 103
1
vote
0
answers
319
views
Using Arduino Sensors with STM32 based NUCLEO boards
Right now I'm programming an Arduino Uno Rev3, I'm using a Sensor Shield v5 (image at the bottom) to be able to have several Ultrasonic sensors and Servos. Right now I'm thinking about getting a ...
- 11
0
votes
1
answer
505
views
How to create a USB CDC device. (I'm using stm32f103c8 black pill board) and I want to read the data through USB in my raspberry pi as a serial port
How to create a USB CDC device. (I'm using stm32f103c8 black pill board) and I want to read the data through USB in my raspberry pi as a serial port.
I am using a black pill to read RFID-rf522 to ...
1
vote
0
answers
66
views
STM32Ethernet UDP misses some packets
Using STM32Duino on Nucleo F429ZI:
#include <LwIP.h>
#include <STM32Ethernet.h>
#define UDP_TX_PACKET_MAX_SIZE 512
#include <EthernetUdp.h>
IPAddress remoteIP;
unsigned int ...
- 303
2
votes
1
answer
2k
views
programming STM32 with arduino IDE issues
I'm currently trying to program an STM32 with arduino, but along the way, i encountered some issues with pin modes. To be more specific, programming certain pins to certain modes. Some pins have ...
- 31