STM32CubeIDE (MCUs)

We have received new STM32H755ZI-Q board recently from STM, When we connect try to flash through STMCubeIde ST_link is not detecting and saying target not found. but in device manager the device is showing. below is error snippet Error in final launch sequence: Failed to start GDB server Failed to start GDB server Error in initializing ST-LINK device. Reason: (4) No device found on target.

Post edited by ST moderator to be inline with the community rules especially with the code sharing. In next time please use </> button to paste your code. Please read this post: How to insert source code# STM32CubeIDE ETH Configuration Bug Report ## Issue SummarySTM32CubeIDE fails to generate proper GPIO initialization code for Ethernet peripheral, resulting in non-functional MDIO/MDC communication with PHY chips. ## Environment- **STM32CubeIDE Version**: 1.19.0- **MCU**: STM32F407ZGT6 (LQFP144 package)- **PHY**: YT8512C- **Interface**: RMII mode- **Date**: September 28, 2025 ## Problem Description ### Configuration in .ioc File (Correct)The STM32CubeIDE project configuration file (`.ioc`) shows correct pin assignments:```PC1.Mode=RMIIPC1.Signal=ETH_MDCPA2.Mode=RMII  PA2.Signal=ETH_MDIOETH.MediaInterface=HAL_ETH_RMII_MODE``` ### Generated Code Issue (Incorrect)However, STM32CubeIDE **fails to generate the required `HAL_ETH_MspInit()` function** in `s

when you install stm32cubeide first time without login the myST, and coincidentally you opened a former project，you will find that code generator won't work without any error message. I've been working on the previous code all day long lol.

When I try to login in the STMCubeIDE(myST -> Login), but I can't type my account and password into the text box of the pop up login window. It seem's like not bscause of network problem as the pop up login window correctly loaded, and I the "login" button and "Create Account" button works properly.and the command line output is several lines of:    1 : Invalid condition id : UX_CORESTACK_Condition cause : nullHow can I fix it?(platform: Arch linux, Hyprland)

I find one example that helps me at the "example selector" . I can open, edit, and run it. if I want to copy it, I have this error. Does anyone know the solution? It creates the project, but the subfolders are not fully copied, like 80% are not there. 

Dear ST Support Team,I am currently working with STM32CubeIDE and using the NUCLEO-H755ZITx development board. On one of the boards, I am consistently encountering the following error during debugging:'filename_Debug' has encountered a problem. Error in final launch sequence. Failed to start GDB server.I have attached a screenshot of the error for your reference.This issue is blocking my development progress, and I would appreciate it if you could help me understand the root cause and suggest a resolution at the earliest.Thank you for your support.Best regards,Prathiksha H L

On the download page for the STM32CubeCLT software, there is only a single download option available for macOS (STM32CubeCLT-Mac), which downloads the x86_64 version of the software.Are there plans to add a download option for AArch64 macOS?

I have an STM32H753ZI core board and I'm looking for a driver for the ILI9341 TFT. Any ideas?Thank you very much.

Hello Experts,I am looking for a solution in which we can create STM32 project with .ioc file and generate the code but cmake as build tool instead of make.I know we have couple of options while creating new project as follows:We can either create STM32 project which allows to have .ioc file and can generate code but that is make file-based project.If create CMake project, then it doesn't have .ioc and code generation feature.In past, I created STM32 project and on top of that added CMake list files but want to know is there any better option.Thanks in advance.

Defining the underlying type of an enumeration has been a difficult task until C23 added the feature.  Previously different compilers used different methods and results could vary unexpectedly. As seen in the image below, STM32CubeIDE v 1.19.0 can recognize this C23 feature and flag mistakes, such as the out-of-range value 0x101 for the 8-bit enum.As seen in the gcc output below, the mistake is caught by gcc:This is all as it should be.  The problem is when I remove the fake out-of-range command, gcc works as expected but STM32CubeIDE flags a syntax error:The build finished with no errors or warnings so gcc 13 understands at least this part of the C23 standard.Is there a configuration within STM32CubeIDE to prevent displaying a Syntax error for code the compiler understands? PS  I checked the generated assembly and it appears that the correct 8-bit code (ldrb) is being generated:   

After updating Cube IDE to version 1.15.0 the memory details & memory regions map in the build analyzer are not showing any informations beside the linker script file name in all my projects start to be bold!!!

 When I try to log in to my account, the software prompts "Connection lost"After I rolled back the version to 1.17, this issue disappeared. Many users in the China region have encountered this problem, and it’s unclear if it exists elsewhere.

HiJust hours ago, I updated the IDE from 1.14.0 to the latest version 1.19.0, a build on the project I have been working on fails by RAM and Flash overflow. This issue has been resolved before the IDE update. Check the 2 map files, I found the (NOLOAD) in the linker script has no effect in the new IDE.The error message from the linker:  The F767 board is customized with 32MB external SDRAM, memory map and sections are defined as below: MEMORY { MEM3BASE (xrw) : ORIGIN = 0X20000000, LENGTH = 60K MEM3MAP (xrw) : ORIGIN = 0x2000F000, LENGTH = 4K MEM1BASE (xrw) : ORIGIN = 0x20010000, LENGTH = 160K MEM1MAP (xrw) : ORIGIN = 0x20038000, LENGTH = 10K RAM (xrw) : ORIGIN = 0x2003A800, LENGTH = 512K-234K FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 1024K LCD_BUF (xrw) : ORIGIN = 0XC0000000, LENGTH = 2000K MEM2BASE (xrw) : ORIGIN = 0XC01F4000, LENGTH = 28912K MEM2MAP (xrw) : ORIGIN = 0XC1E30000, LENGTH = 1807K MEM4BASE (xrw) : ORIGIN = 0xC1FF3C00, LENGTH = 49K } /* Afte

I am trying to debug my hardware for the first time. I was working in TrueStudio 9.3.0 as I had started this project in it before STM32CubeIDE came out. When I started to try to debug my program to day I got an error. OK, maybe I should try STM32CubeIDE instead. Loaded this up and got the project migrated with no problem. But when I go into the debugger it generates the same error and exits. I am not sure where to start to track this down. The console shows this: STMicroelectronics ST-LINK GDB server. Version 5.2.3Copyright (c) 2019, STMicroelectronics. All rights reserved.Starting server with the following options:    Persistent Mode      : Disabled    Logging Level       : 1    Listen Port Number     : 61234    Status Refresh Delay    : 15s    Verbose Mode   &nbs

HiI don't know what happens, I just restarted my laptop, then it does not run or debug from CubeIDE. Before I retarted the laptop, I was debugging.When I click to Run or Debug, there is nothing appearing in the console window.  I closed the IDE twice, but nothing changed.Anybody knows how to resolve this issue?Chao 

Hello,I am experiencing the same issues as these individuals : https://community.st.com/t5/stm32-mcus-products/stm32h757-swo-debug-error/m-p/738531#M265220When I launch my debug with SWO enabled, I encounter errors upon launch, and if the errors are not displayed, the prints do not works, even though I have already used them on other projects with other processors and they worked.I have follow instructions to activate sw (enable two, set clock, set prescaler, use ITM console,  ...)my print function is :   int __io_putchar(int ch) { ITM_SendChar(ch); return(ch); } But I have the error, so I try lot of things,  * change cables and PC port* change my PC (Mac and Windows) (STM32CubeIDE 1.18.0)* set script to set sw register, in Debug Configurations > startup > Run commands * set by my self swo pin (see below) * do my own swo_init function called in main after GPIO init (see below)   Nothing works, can someone help me ? { GPIO_InitTypeDef GPIO

Hello,Since I installed a new version of linux mint (22.2), I can't upload my programs to the MCU.CubeIde show this error: Could not determine GDB version using command: arm-none-eabi-gdb --versionarm-none-eabi-gdb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory Searching in my system, I found libncurses.so.6, not libncurses.so.5 I read in the forum that I need to install libncurses5, but is not present in my repositories. I found a possible solution adding "universe" repositories sudo add-apt-repository universesudo apt install libncurses5 but libncurses5 still missing I found a post from Semer Cherni (ST Employee) that say that "The Linux Mint 22 is not supported by STM32CubeIDE"This post was written on 2024-10-07 12:12 PM Is the problem still active, or I need to go back to the old version? Thanks  

Hello,I cant start SDRAM to work, I ques what FMC controller do not initialize interface correctly because CLK is dead (bug !?), there is no activity at all, I connected oscilloscope to CLK output to check, if I toggle manually the pin PD9 (FMC_SDCLK) is changing state, there is no difference what frequency is set and what is RCC source, now CLK is set to 50Mhz, source IC4 100Mhz, similar code on H7 works without problems even if frequency is to high for my SDRAM 143Mhz (tested - works well up to ~165Mhz), there is initialization code:static void MX_FMC_Init(void){ /* USER CODE BEGIN FMC_Init 0 */ /* USER CODE END FMC_Init 0 */ FMC_SDRAM_TimingTypeDef SdramTiming = {0}; /* USER CODE BEGIN FMC_Init 1 */ /* USER CODE END FMC_Init 1 */ /** Perform the SDRAM1 memory initialization sequence */ hsdram1.Instance = FMC_SDRAM_DEVICE; /* hsdram1.Init */ hsdram1.Init.SDBank = FMC_SDRAM_BANK1; hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_9; hsdram1.Init.RowBitsNumber = FMC_

 Hi!I try to read data from an I2C device using DMA. I use a STM32-F412ZG nucleo board.First I try to write without DMA : HAL_FMPI2C_Mem_Write(&hfmpi2c1, 0x52, 0x7fff, FMPI2C_MEMADD_SIZE_16BIT, tab, 1, 1000); Then I want to read data using DMA with: HAL_FMPI2C_Mem_Read_DMA(&hfmpi2c1, 0x52, 0x0, FMPI2C_MEMADD_SIZE_16BIT, tab, 1); Here is what i get with the osciloscope:The first part corresponds to the write and works correctly. The second part corresponds to the read function, but the address of the register should be a16 bit sequence, but i only get the first byte, then the I2C bus is stuck (sclk stays at 0V).I tested the same thing using I2C instead of FMPI2C, and all works correcly.Did I miss something in my code? the full project is attached.Léonard G

Follow-on from: Help for porting from MDK to CubeIDE.HiI am now working on porting an MDK example to CubeIDE on an F767-based customized board with 32MB SDRAM and an LCD interface.At the moment, the build of the ported example in CubeIDE gives following erorr message:The following is the original code of the example targeting on ARM compiler:static __align(64) uint8_t mem1base[160*1024]; static __align(64) uint8_t mem2base[28912*1024] __attribute__((at(0XC01F4000))); static __align(64) uint8_t mem3base[60*1024] __attribute__((at(0X20000000))); static uint32_t mem1mapbase[160*1024/64]; static uint32_t mem2mapbase[28912*1024/64] __attribute__((at(0XC01F4000 + 28912*1024))); static uint32_t mem3mapbase[60*1024/64] __attribute__((at(0X20000000 + 60*1024))); Now after the porting, the code is changed to:/* mem1 (internal RAM) (64 bytes alignment) */ __attribute__((section(".mem1base.mem1_base"))) static uint8_t mem1base[160 * 1024] = { 0 }; // mem2 (32MB external SDRAM) // 64 byt

HiI am trying to port an example application from MDK to CubeIDE, the CubeIDE does not give me correct compilation result:1. It completes the compilation when code contains syntax error and it produces binary. This is quite different from past experiences with CubeIDE.2. The size of the binary is not correct (88 bytes for an LWIP application is imppossible)3. The CubeMX does not generate startup code startup_stm32f767igtx.s4. There's a warning: cannot find entry symbol Reset_Handler5. MDK uses ARM compiler, therefore how to rewrite the following delarations in CubeIDE:#if !(__ARMCC_VERSION >= 6010050) /* not AC6 compiler */ /* use AC5 compiler */ /* the following 3 declarations are reported syntax error by CubeIDE */ /* internal SRAM */ static __align(64) uint8_t mem1base[MEM1_MAX_SIZE]; /* external SDRAM */ static __align(64) uint8_t mem2base[MEM2_MAX_SIZE] __attribute__((at(0XC01F4000))); /* internal DTCM */ static __align(64) uint8_t mem3base[MEM3_MAX_SIZE] __attribu

I am working to send data continuously using TCP/IP, LWIP and free-RTOS. I created three tasks and using one task to send data. Each data packet is 1460 bytes and after sending around 300K packets the system halts and resets. I wanted to increase the size of descript ETH_RX_DESC_CNT and ETH_TX_DESC_CNT from 4 to 8 to check the performance. I do not want to change it in .ioc file as it will generate code again that will result in deletion of my code. I tried to redefine using every method, in compiler preprocess, main.h, stm32h7rsxx_hal_conf.h, stm32h7rsxx_hal_eth.h, ethernetif.c but nothing works. The value remains same 4U (default).How I can do that?Edit: I am using Nucleo-H7S3L8 board

Hi there,   Could anyone advise how to setup STM32CudeIDE to debug my custom board using ST Link V2 ? https://www.amazon.sg/SFCPI-Programmer-Microcontroller-Interface-Simulatio/dp/B09Q22M9CK/ref=sr_1_10?crid=30DWFY0GZDYLG&dib=eyJ2IjoiMSJ9.qqFD5Om07FWVxJ7mURnZvPcIQPmxHfGgHPoBm530uuH0lUYrZ0oztdsDV5uhMsVrY6STPuoG69LZXOrHraoCuxsC0VeC2inE0ENRg8pKrxGtED1pDS5_-MFgQhj519dLrrXK3ENFhZORloszTuOXTd8Doj77gqCFUg2AcPVkTmosH6LvtLIvr3cgtMGp8Zhgdxd-MbplhqLtTze2ucGPymm-yl-KaN1ELp86-C9q1WUd71rgW9Ov9hgbji_tbaxoqipY3oOvyS4THyE37lX6telU0IpkevcY4YOsjO7ncq8.SUsfWivuFWbnzYwBlZrVKTjyjkfXCuJDvFfHMDgwA_0&dib_tag=se&keywords=stlink+v2+programmer&qid=1759847960&sprefix=STLINK+V2+%2Caps%2C409&sr=8-10

 Weird things are happening.The breakpoint  i set in the void Read_ToF_From_VL53L0X_FreeRTOS_Task(void *pvParameters) task is not getting hitthis task calls VL53L0X_Measure_Distance function in which i set a breakpoint which is working ok ! also i put another breakpoint in the file VL53L0X_FreeRTOS_Queues.c which is called upon initializationthis is also not getting hitis it a problem with teh specific folder?but the VL53L0X_Core_Functions.c also on the same main dirdoes the FreeRTOS dir have any problems?Has anyone experienced this problem?@Andrew Neil @mƎALLEm @TDK 

When I build and debug my project, I get the error window below when the debugger connection is established. The download takes place and verifies successfully, but displays the message again.However, when I start program execution, the console displays the message:Target is not responding, retrying...And then stops. So debugging is not possible. Any suggestions on how to resolve this?