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Questions tagged [stm32f4discovery]

Evaluation board from STM. Based on the STM32F407VGT6, it includes an ST-LINK/V2 embedded debug tool, two ST MEMS, digital accelerometer and digital microphone, one audio DAC with integrated class D speaker driver, LEDs and push buttons and an USB OTG micro-AB connector.

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Interrupt priority issue between a timer and spi on STM32F4

My goal is to have a timer that triggers an interrupt at 1kHz and for that to call a few lines of code that starts a HAL_SPI_TransmitReceive_DMA call (or possibly more than one on different SPI buses). Once the SPI calls are made, it enters a while…
Ben Freudberg
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Read/Write Struct to Flash Memory

I want to write the contents of a struct to flash memory in my C program for STM32F4 Discovery board using HAL libraries. This is my struct: typedef struct { RTC_TimeTypeDef time; RTC_DateTypeDef date; float Data; } DataLogTypeDef; I…
b7031719
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STM32F4 USART1 doesn't work correctly and return garbage data

I am trying to work with STM32F407 USART1 peripheral but it doesn't work correctly. I have read the datasheet for many times but i couldn't find any solution. I use FTDI232 for the communication. My connections are correct, i use this connection on…
Hasan Eren Keskin
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ARM Cortex M4 SVC_Handler "UsageFault"

I'm creating a context switch program for a personal mini ARM kernel project and the context switch program is written entirely in Assembly. The problem is when I make a SVC call (svc 0) I enter the SVC_Handler but when I try to execute the next…
smolaie
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stm32f427 interrupt clear pending bit

I am new to stm32f427 board and I am digging a bit deeper. I think that on the internet, especially StackOverflow, people sort of agreed on this, just an example: void EXTI9_5_IRQHandler(void) { /* Make sure that interrupt flag is set */ if…
user3431800
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STM32F Discovery - Undefined reference to arm_sin_f32

I'm new to programming the STM32F Discovery board. I followed the instructions here and managed to get the blinky led light working. But now I'm trying to play an audio tone for which I have borrowed code from here. In my Makefile I have included…
arunkumar
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GDB + CLion + STM32f4 + OpenOCD -> gdb error, truncated register 16 in remote 'g' packet

On my Windows10, having stm32f407vg discovery boards I'm doing example: f4-blog-master Then I got this error: D:\Software\OpenOCD-20170821\bin\openocd.exe -c "tcl_port disabled" -s D:\Software\OpenOCD-20170821\share\openocd\scripts -f…
yourstruly
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What is required for windows to recognize a custom HID device?

Currently, I'm working with an STM32F746G-DISCO dev kit, and I'm trying to build a generic HID device. (not keyboard, not controller, not mouse, etc.) Using the mbed libraries, the setup was pretty simple and painless. I was able to import their…
Michael Smith
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gnu linker script - stm32f4xx - global variables

i would like to make the memory map (start and end addresses of section) available in my firmware: example: i would like to know where the origin of the user_data section starts (0x8800000) and how long it is (512K). I saw it in an example once, it…
user7747610
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STM32 HAL SPI 16 bit Transmit

I am trying to use HAL_SPI_Transmit(.) for 16 bit data transmission. I have configured the SPI using STM32Cube as 16 bit data size (with hspi2.Init.DataSize = SPI_DATASIZE_16BIT). I tried to send data in 16 bit with: uint16_t…
Alithewise
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stm32f469 FreeRTOS+STemWin with CubeMX and keil: Bad operand types (UnDefOT, Constant) for operator (*

I'm making project generated with STM32CubeMX for stm32f469i-disco. I have based setup on "FreeRTOSconfig.h" from "Demonstration" project in STM32CubeFWF4V1.16.0 repo. Fresh project from CubeMX compiles without problems, but after adding STemWin…
pondito
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STM32F4 Discovery Board as I2C Master - Can not get anything going through the SCL and SDA Lines

I am trying to use the STM32F4 discovery board as a master to communicate to a sensor using I2C. I am using the std periph library to do this but for some reason I am unable to get anything going through the SCL and SDA lines. From reading through…
Sumeet K
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How to setup fast STM32 F4 FSMC to control a display on the STM32F4Discovery board?

I'm connecting an ILI9341 display controller to an STM32F407vg microcontroller (STM32 Discovery board). The display is connected to the STM32 with a 16-bit parallel databus. To achieve high datarates I use the FSMC of the STM32. The FSMC is…
i.amniels
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Hangs in vsprintf()

I'm programming on stm32f407 and using vsprintf to access all the the arguments assigned to argv such as: va_list argv; va_start(argv, __format); vsprintf(buffer, __format, argv); va_end(argv); But the program hangs in vsprintf. I modified…
Tien Luong
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stm32f4 DMA does not always start after suspending

So this question is kind of a "sequel" of this one: Stm32f4: DMA + ADC Transfer pausing. Again, I am trying to implement such an algorithm: Initialize DMA with ADC in tripple interleaved mode on one channel Wait for an external interrupt Suspend…
sx107
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