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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Looking for open source Bluetooth Stack (HCI) for STM32F4
I am new to bluetooth develpoing and i am looking to connect a ST STM32F4 MCU via uart to a bluetooth module.
The MCU will have to have HCI implementation to configue and manage the bluetooth module.
Is there any recommendations about an open source…
shush
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1 answer
Are STM32 HID USB Drivers really that slow?
I have a project in which I need to transfer data over USB HID. I have performed some speed tests, and found the USB drivers painfully slow at less than 1kB/s (nowhere close to 64kB/s). Is it really a driver problem or something else.
Has anyone…
Dr. Sahib
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2 answers
FreeRTOS fat cycle issues, is there any chance I can write 512bytes with 50hz?
I raise this question during use freertos fat.
The development environment using iar compiler and MCU is using the cortex-m4.
I use the hal library and the contents of FreeRTOS FAT Config.h are as follows:
#define BUS_4BITS 1
#define…
JMS
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1 answer
STM32F4 .. Testing delay function
I'm a beginner in using an STM32F4 discovery board for a project and am wondering if I'm approaching the problem correctly.
wonna test my ms delay function but no vain ..
#include "stm32f4x.h"
#define LED_BLUE_GPIO GPIOC
#define LED_BLUE_PIN …
Ensaf Atef
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2 answers
atof("0") returns 2 in float variable
I write c embedded on STM32F437VI. At some point, I need to parse some strings that contain numbers, as float numbers. I use atof and it works always with the correct result, except for this one weird case. If the string is 0 or 0.0 it gives 2.
I…
BabisI
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How to use gamepad by STM32?
I'm a very beginner of using STM32 and now I'm trying to move a robot by using STM32F4.
Now I can move a robot by controlling a device such as motor, encoder and other devices.
However, I don't have any idea about reading gamepad (HID device of…
minmax34
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3 answers
After using strstr() the substring also transmitted via uart
I was trying UART using STM32F407V6T6 and CubeMx.
As I have posted some problems with strstr() function. Here is some new problems.
Here is the code:
char rxBuff[10];
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
…
sourav maity
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