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I am working on an STM32F746G-Discovery board using LwIP (2.1.2) and FreeRTOS (CMSIS-RTOS V1) generated via STM32CubeMX. I am facing a persistent issue where the gnetif.ip_addr.addr field is populated with a garbage/static value before DHCP can complete, specifically 0xf44fd102. The Issue: Even after performing a memset(&gnetif, 0, sizeof(struct netif)) before MX_LWIP_Init(), the debugger consistently reports the following for the IP address variable: Hex: 0xf44fd102 Decimal: -196095742 Translated IP: 244.79.209.2 (Multicast) It appears the Ethernet DMA is writing multicast network traffic into the memory space allocated for gnetif, or I am facing a D-Cache coherency issue where the CPU is reading "stale" data from a previous boot/session. Current Confi

     

Hello,i did the OEMiROT examples following How to start with OEMiRoT on STM32C5 using CMake by converting the EWARM project config. I would like to give that CMake config back as well as some fixes to the provisioning script / example_config. Where/How do I that?I know the GitHub Repo, however since there are no open/close tickets, I wounder if that is the right place.

I am trying to run this demo, but I am receiving an error.How should I program this board? Should I use an ST-LINK or a USB-to-TTL adapter, or is a direct USB Type-C connection sufficient? I am trying to program it via TouchGFX Designer. I have read the following guide, but I couldn't q

HelloI am using a Mac. There is software support for stm32cude ide on Mac. But I would like to ask if there is support for Touchgfx application on a Mac.On the website https://www.st.com/en/embedded-software/x-cube-touchgfx.htmlI can not find a link to download the software for Mac.Is there software support for Mac or any other way to run this application? Thank you 

Hello,I use the STM32 Motor Control Software Development Kit (MCSDK version 6.4.1). I created a new project with the STM32G474E-EVAL microcontroller board, the two IHM07M1 motor-drivers (power boards), the two modified X-NUCLEO-IHM09M1 adapter (connector) boards, and two gimbal 12V 3-Phase BLDC motors with encoder AS5048A. The project code was generated. By the way, I have not bought all the hardware yet. Our project is specific. For all microcontroller boards and their software, which I know, it is true that setting zero speed holds a motor's rotor in a fixed position. We need to accelerate two motors' rotors for 180 degrees and let them rotate by inertia for next 180 degrees. In this way, a rotor makes one full 360-degree circle path. It seems that the MCSDK Motor Pilot makes a rotor in a fixed position if the motor speed is set zero. Hence, we need to depower the motors while the rotors make the 180-degree path by their inertia. I doubt that the MCSDK Motor Pil

Hi,   I wanted to set up time keeping on my Discovery board for testing something. I see the following in the documentation for the larger STM32F769-EVAL:   https://github.com/STMicroelectronics/STM32CubeF7/blob/master/Projects/STM32F769I_EVAL/Examples/RTC/RTC_InternalTimeStamp/readme.txt   - This example runs on STM32F779xx/STM32F777xx/STM32F767xx/STM32F769xx Devices.- This example has been tested with STMicroelectronics STM32F769I-EVALboard and can be easily tailored to any other supported device and development board. - STM32F769I-EVAL Set-up- Make sure that JP15 is in position 2-3 to connect 3V battery to VBAT pin.  

Hello, I ran into an issue when testing a UART application on a STM32C562RE in loopback mode with RTS and CTS enabled. The app does the following:1. Start receiving 1 character at a time by using HAL_UART_Receive_IT.2. Send a string 3. After the received character is printed out I issue another call HAL_UART_Receive_IT.Everything works fine; the app prints out the string I sent. I wanted to make sure the hardware flow control was running correctly so I placed a HAL_Delay(1) after I print out the character received and before I issue a new call  to HAL_UART_Receive_IT. This should stop the transmitter due to the CTS -> 1 (no more room in the Rx buffer) and it should restart it after I issue the HAL_UART_Receive_IT CTS -> 0 due to available room in the Rx buffer; and, it does. All the characters are received as expected however HAL_UART_Receive_IT returns HA

Hello,I'm working with the STM32MP135F-DK kit and I'm trying to understand the correct way to configure interrupt lines (IRQs) for external devices,  specifically for the STPMIC1 in OP-TEE.I have been reading the official documentation and I'm a bit confused about whether it is mandatory to use the dedicated PWR Wake-up pins (WKUP1–WKUP6) for interrupt lines, or if any GPIO can be used.--- What I observed in the reference DTS files: Looking at the OP-TEE device tree (core/arch/arm/dts/stm32mp135f-dk.dts, tag 4.0.0-stm32mp), I can see that all IRQ consumers use EXTI lines above 55: - STPMIC1 interrupts-extended = <&exti 55 IRQ_TYPE_EDGE_FALLING> (WKUP1 / PF8) --- My questionsIs it mandatory to use one of the 6 dedicated WKUP pins (EXTI 55–60) for any dev

When calling HAL_QSPI_Abort() to disable memory mapped mode, with the memmap timeout active, I find that there is a race condition that can cause the abort to fail when it should not. If the memmap timeout happens after the abort function's check of the busy flag, but before it can write to the abort bit, the TC flag will never be set and the abort function will wait for the configured qspi timeout, then return an error.I am testing this on a STM32F769I-DISCO board.I have found that the following patch will fix the issue: diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_qspi.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_qspi.c index 8404466..01a06ca 100644 --- a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_qspi.c +++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_qspi.c @@ -2381,19 +2381,19 @@ HAL_StatusTypeDef HAL_QSPI_Abort(QSPI_HandleTypeDef *hqspi) /* Configure QSPI: CR register

Hello Everyone,I'm checking the STM32WL5MOCH6TR MCU of a custom board that i made a few years ago, and I don't understand something : - On the datasheet, it says that its frequency range supported is 864–928 MHz- When I open a CubeIDE project, I'm able to set a much wider range : LoraWAN example :  SubGHz_Phy example : 

Hello, we are seeing a weird symptom in our application in which all LTDC registers are reading back the same seemingly random number.  This is during a debugging session via system viewer (we are using Keil 5.40 and compiler 5), OR when reading and printing out values to serial at runtime.  The LTDC seems to be operating properly (mostly, working through various issues but it's displaying graphics at least.  I'm stumped, and so are the AIs I use.  Any ideas as to why this might be? 

I have troubles using SPI3 on STM32U575VG. After some time the transfer hangs and it is not possible to amend it until whole reset.Configuration: Only transmit, is feeds LCD display, 240 lines, 54 bytes each.APB3 clock 48 MHz. Manual CS handling, SCLK 1.5 MHz.Everything looks ok, it works, but after some time and on some boards only it hangs. The problem appeared in the start of production. Symptoms: after configuration and LL_SPI_Enable(), the DMA transfers 16 bytes to the FIFO. That's ok, DMA works. But after LL_SPI_StartMasterTransfer(), the transfer doesn't start.Looking at the pins, SCLK remains low and MOSI contains some data, but very slow, one bit interval seems to be 8 ms. Reset of the SPI doesn't help. Reinit of the whole MCU after STOP2 (without reset), including all clocks doesn't help. The only thing that works is the reset of the whole MCU. I have no idea where to look at more. The SPI is not overclocked, it doesn

Is there a STM32N6 throughput test on the USB 2-480Mb happened.   I'm just curious because i'm getting a throughput on my design of *  97 Mb    Just wondering what is a idealistic throughput to see if i need to edit something on my end or this is a expected throughput to get.  

Hello,Here are a few things I need to clarify regarding the EVSPIN32G4 current measurement and the related MCSDK software:Referring to section 5.6.1, 5.6.2 and 5.6.3 of the UM2850, I believe that the topology using three standalone OpAmps presented in section 5.6.2 is not currently supported by MCSDK, is this correct?So, considering the 2 topologies presented in 5.6.1 and 5.6.3, is there a major disadvantage to go for the internal PGA solution compared to the first configuration which requires external feedback networks on the inverting side of the OpAmp?At the end of section 5.6.3, it is recommended to connect the inverting input of the PGAs to shunt resistors to perform differential current measurement in case of high current application, but I don't have the possibility to do it in MCSDK since only the "single ended" sensing type is available, what do you propose in this case?Thanks in advance and best regards.

I'm looking at setting the RDP Level to Level 1 for an STM32F103 and I don't see the AA BB CC type stuff like in the current manual. Is this something that STM32CubeProgrammer is doing on purpose for this MCU?  I definitely don't want to enable Level 2 by accident and brick my chip.  Here is a screenshot of what I see:Is it safe to check this? 

Hello everyone,I am trying to built a communication through SPI between two stm32g474 mircontrollers in two seperate projects. One should act as a Master and the other as slave. The Master succesfully reads ADC values out and sends it. But unfortunately,  the Slave does not Receive it. Here is my Code for Master:/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2026 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ******************************************

I can't seem to read the OTP bits on the stm32N6 with any of my boards with 2.22 of the stm32CubeProgrammer.   But i can on version 2.21 Everything else works fine with the chip. 

Hello,I am evaluating the VND5T100AJ-E for an automotive application where I need to drive a 24V contactor. My design requirement is i need to drive the IC through the PWM signal as input.I have reviewed the datasheet but do not see explicit PWM frequency ratings. My concerns are:Does the VND5T100AJ-E support continuous PWM switching for an inductive load?If this device is not recommended for PWM, could you suggest a similar specification alternative part with the same specifications  that is specifically designed for PWM input @stmicro 

Greetings, I'm trying to set up TIM4 per the reference manual (RM0016).With the clock set to LSI at 128kHz, the following code causes the PD2 output pin to appear constantly high visually via a wired LED. I would expect it would be blinking once per second. I don't have access to a scope so I can't see what is actually happening. Anyone spot anything I'm doing incorrectly?sim ; F_Master Prescalar tim clk ; 128_000 Hz / 1024 = 125 mov TIM4_PSCR, #0b1010 ; 2 ** 0b1010 = 1024 prescaler ; ARR at 0x7d = 125 mov TIM4_ARR, #0x7d bset TIM4_IER, #0 ; UIE: Update interrupt enable bset TIM4_CR1, #0 ; CEN: Counter enable...and the interrupt code:tim4_up_isr: ; PD2 blinks once per second ; from TIM4 bres TIM4_SR, #0 ; UIF: Update interrupt flag bcpl PD_ODR, #2 iret ...fwiw when I set line 5 of the interrupt code to use bres PD_ODR, #2, the output ap

Hello, I'm curious why TIM2 is correctly repeating in my code, whereas TIM4 with equivalent settings is not.In this code, the TIM2 indicator (fired by the TIM2 interrupt) is blinking twice a second (clock set to LSI, meaning 128kHz). I would expect the TIM4 indicator (fired by the TIM4 interrupt) to do the same; but it is being triggered immediately and much faster: so fast that to the eye it appears as a constant on.The reference manual RM0016 and datasheet DS7147 indicate that, given similar settings, both timers should be exhibiting similar behavior. What am I missing?Here's the code:; some typical setup hidden before this point ; PD3 is on, indicating LSI is clock source ld a, CLK_SWR cp a, #0xd2 jrne 1$ bset PD_ODR, #3 ; timer setup sim ; F_Master Prescalar tim clk ; 128_000 Hz / 1024 = 125 mov TIM2_PSCR, #0b1010 ; 2 ** 0b1010 = 1024 prescaler mov TIM2_ARRH, #0d0 mov TIM2_ARRL, #0d125 bset TIM2

Hello,I am currently experiencing difficulties using the STM32N6 NUCLEO board.My goal is to test NPU execution using X-CUBE-AI within CubeMX. However, I am stuck in an infinite loop inside the MX_X_CUBE_AI_Process function. Specifically, LL_ATON_RT_RunEpochBlock() continuously returns only the LL_ATON_RT_DONE status, preventing the loop from terminating as expected. do {ret = LL_ATON_RT_RunEpochBlock(&NN_Instance_Default);if (ret == LL_ATON_RT_WFE) LL_ATON_OSAL_WFE();} while (ret != LL_ATON_RT_DONE); I Can't get the LL_ATON_RT_DONE, only LL_ATON_RT_WFE.This issue persists even when using files generated via Cube AI Studio.I have config

Hi,I am using one ADC with multiple channels on an STM32 device. I configured a timer trigger (external trigger) for the ADC, but I noticed that the trigger seems to apply to all channels of the same ADC, not just the selected channel.I would like to confirm:Is it true that one ADC has only one trigger source, and all configured channels share that trigger?Is it possible to configure different sampling/trigger properties per channel, or is the external trigger common for the entire ADC conversion sequence?My goal is to use different trigger timing per channel, but I am using only one ADC peripheral.Thank you.

Hi everyone,I am working on the STM32MP257-EVAL board, where my Cortex-M33 application requires both FreeRTOS and OpenAMP middleware to run together.After referring to the STM32CubeMPU packages, I found separate example projects:One for FreeRTOSOne for OpenAMP (running in bare-metal environment)I tried combining both examples into a single application. The FreeRTOS part is working correctly, but OpenAMP hangs during initialization.After debugging, I noticed that libmetal is getting compiled for the generic platform instead of the FreeRTOS platform. To address this, I changed the toolchain configuration from:-DCMAKE_TOOLCHAIN_FILE=cmake/platforms/stm32mp-generic-gcc.cmaketo:-DCMAKE_TOOLCHAIN_FILE=cmake/platforms/stm32mp-freertos-gcc.cmakeHowever, this results in multiple compilation errors. It seems the provided libmetal port may not be fully compatible with the FreeRTOS platform setup.

Hi I have setup a small project in CubeMX v6.17.0 with FSBL and an application (secure domain only). As long as I use the default Flash and RAM region, debugging works fine.  ROM (xrw) : ORIGIN = 0x34000400, LENGTH = 511K RAM (xrw) : ORIGIN = 0x34080000, LENGTH = 1536KIn the future the application will be way bigger (using TouchGFX), therfore I increased the Flash Region to 1.5 MB and the RAM Region will start at 0x34200000 with a length of 1.5 MB as well.  ROM (xrw) : ORIGIN = 0x34000400, LENGTH = 1536K RAM (xrw) : ORIGIN = 0x34200000, LENGTH = 1536KSince I made this change it is not possible to step into the application. FSBL works well and is loading the App data from external Flash into SRAM (0x34000000) as requested. After jumping into the app connection to target is lost as soon as SystemInit funciton is called.