STM32 F4 controllers are entry-level ARM Cortex-M4 MCUs from ST Microelectronics.
The STM32F4xx series is an ARM Cortex-M4 based 32-bit microcontroller. Its datasheet can be found here.
Questions tagged [stm32f4]
533 questions
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Flashing STM32f401CCU6 with binary file with Raspberry PI
I have STM32 which is gathering data from different sensors and reporting that data to Raspberry PI over Serial connection. On Raspberry PI is a service which is reporting that data to a server over the internet.
The problem i have is updating the…
user1396057
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How do we enable thumb mode in stm32f series when we use embedded c to drive it?Can you explain it in detail as i am a beginner
I want to enable thumb mode in stm32f401re board. the code i had written for it is in embedded c. How do we enable thumb mode in embedded c language. Do we use -mthumb command for it, do we have to add any library prior using that command. Or is…
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why not only one datasheet for STM microcontrollers
I know it's not a coding question , but I am struggling with something around my head for a little bit, for example stm32f446re : why it doesn't have only one datasheet , why so many datasheet for only one microcontroller , also my question is : how…
abdo Salm
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Putty on linux not showing received data from stm32F407VG
I am new in microcontroller and I was trying to send data from stm32F407VG to usb serial port connected to st-link using usart2 and HAL. I tried to print the data received on PuTTy . On PuTTyI set my port which is /dev/ttyACM0 and selected the baud…
DextroLaev
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1 answer
Stm32 hardfault exception at Rtos
task_create
tasks
rtos_config
debug
I am new at RTOS , created two tasks on stm32cubeide but i counter HardFault_Handler exception on debug . why could it be ? I have the need for your help . all of the file --> link
thanks....
Asaemon
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1 answer
C:/Users/firmware/Desktop/uc4/New Folder/Inc/ff.h:28:10: fatal error: integer.h: No such file or directory
i m working on a project in which i am using stm32f411 nucleo board. in which i face error
Description Resource Path Location Type
fatal error: ff.h: No such file or directory fatfs.h /New Folder/Inc line 56 C/C++ Problem
In file…
Prikshit Rana
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1 answer
DMA1 Does not Work With USART1 in stm32f103c8?
I'm Trying to enable DMA1 with USART1 in stm32f103c8 but it does not work .
i enabled the usart to work as transmitter .
and then enabled the DMA1 and make this configuration to it
1-enable the DMA1 clock from RCC.
2-disabled the DMA1 Channel…
Hesham Adel
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1 answer
Why USART2 Send a Garbage Value?
Hello i'm using stm32f103c8 and i'm trying to use usart2 but it does not work .
when i'm using USART1 with the same configuration of USART2 it works with me well . but USART2 send garbage to the PC terminal can someone help me to solve the problem…
Hesham Adel
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2 answers
trying to make sense of this #define
I am trying to adapt a 16bit audio recorder application for stm32fxxx to 24bit and I have stumbled across a #define that is confusing me.
I have changed 16bit DMA to 32bit DMA along with some buffers uint16_t to uint32_t etc.. no idea why uint32_t…
Ben Biles
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votes
1 answer
Touch screen panel using LVDS interface
Hi i am thinking to connect a 14 inch or bigger lcd touch screen with my discovery boards. Currently i have stm32f4 and stm32f7 discovery boards.
Currently i am aware of different methods to connect them. But i am most interested in LTDC. I have…
Mandeep Chaudhary
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1 answer
Accelerometer Reading
I am using an STM accelerometer with STM controller.
While getting the readings from the accelerometer, it gives a random value. It even shows a false value, when used in a steady position.
Here, somehow, I am facing problem and need some idea and…
SACHIN RAJPUT
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1 answer
finite state machine for reading password
I'm trying to read the input from a user using keypad 4x4 and compare the input using a finite state machine as shown below.
When I come to case fourth my state machine does not go to Check case but to the default instead and then takes a key to go…
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2 answers
cortex m4f havard (architecture) "programming itself" possible?
I have an STM32F446 processor (Cortex M4 with FPU, havard architecture) and I planned to build a "mini computer" (screen, keyboard) with it.
Is it possible to programm assembler on the device itself and let it programm/flash itself with that code or…
Beny Benz
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1 answer
How to use W25Q16 FLASH memory in STM32F4 with HAL Driver?
I want to save and restore my integer datas with my FLASH memory in STM32F407 using SPI1. I gave instructions to FLASH like this code.
uint8_t txData[10] = {0xAB, 0x04, 0x06, 0xC7, 0x04, 0x90, 0x00, 0x00, 0x00, 0x00};
uint8_t rxData[10] =…
Tart L.
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2 answers
Audio Transfer Callbacks not executing with STM32F469I-Discovery
I'm new to embedded programming and I'm currently working on a project with an STM32F469I-discovery board. I'm using eclipse with the ARM tool chain and the supplied drivers. I'm getting stuck on playing a binary audio file flashed into the chip at…
Charlie Black
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