STM32 MCUs Embedded software

Hello ST Team,I'm implementing robust Ethernet on STM32H743ZI. Need technical guidance on:PART 1: BANDWIDTH VERIFICATIONQuestion 1.1: How to verify link speed?How to check link speed (100 Mbps)?Question 1.2: Bandwidth testing methodology?Create a TCP socket, send a large file to the PC?Expected bandwidth on STM32H743?Network overhead (TCP/IP stack)?Optimal packet size for testing?  Also, how can I debug this to check if I am using full bandwidth and if my link is down during transmission?

Post edited by ST moderator to be inline with the community rules for the code sharing. In next time please use </> button to paste your code and a linker script content. Please read this post: How to insert source code. Hello, I am working on STM32H753ZI (NUCLEO-H753ZI board) with NetX Duo.I am trying to place all Ethernet DMA descriptors, RX/TX buffers, and NetX packet pool in D2 SRAM, but the system always ends up in a Hard Fault right after starting the Ethernet interface. I have already followed the ST AN4838 guidelines and forum suggestions, but the fault still occurs. 1. My linker script sections .NetXPoolSection (NOLOAD) : { .

I am working on a NUCLEO-H753ZI board and want to set up Ethernet communication using LwIP in STM32CubeIDE. I am looking for step-by-step guidance from the IOC file configuration to the generated code, including: Pinout configuration for RMII (TX/RX, MDC/MDIO, REF_CLK) LwIP middleware settings (heap size, pbuf pool, MEM_SIZE, etc.) Memory layout for D2 SRAM / AXI SRAM for LwIP heap, DMA descriptors, RX/TX buffers MPU region configuration for Ethernet and LwIP memory Generating code and linker settings Any tips to ensure that ping from PC works reliably Could someone provide a complete, detailed guide or example project showing how to configure CubeIDE and LwIP for NUCLEO-H753ZI?

STM32F429ZI Ethernet @180MHzRM0090 33.8.1 page 1197, ETH_MACMIIAR CR: max value is 100 150-168MHz HCLK/102Is this a print error (other micros in the family can only reach 168MHz) or the controller is not specified to work at 180MHz ?Thx

Hello ST Community,I'm currently developing a project on STM32H743 using TouchGFX 4.25.0 (RGB LTDC interface, framebuffer in external 16MB SDRAM) and LWIP + FreeRTOS (TCP client mode over Ethernet RMII). Everything works fine when TouchGFX is not included. However, after adding TouchGFX to the project, I'm facing strange Ethernet instability.:magnifying_glass_tilted_left: Observations:Without TouchGFX:TCP Client connects to the server reliably.No reconnection or data loss observed.Using recv() with flags = 0 works flawlessly for long durations.With TouchGFX + LTDC + DMA2D:Frequent TCP reconnections start occurring.Happens especially when using lwip_select() + recv() mechanism.If I skip lwip_select() and use

Moved from this thread. Why does attempting to compile this example result in these errors?     ../../USBX/Target/ux_stm32_config.h:29:10: fatal error: stm32h5xx_hal.h: No such file or directory 29 | #include "stm32h5xx_hal.h" | ^~~~~~~~~~~~~~~~~  

Hi everybody,I'm trying to make a bootloader in my STM32F446. The aim if this one is the possibility to update the firmware but with keeping the previous one in case of issue. So, I'll have two slots for firmware.For now, I have the following sectors in my flash :BOOTLOADER : 0x0800 0000 -> 0x0800BFFF (it only uses sector 0 & 1 for code, so I use last word of sector 2 (0x0800 BFFE & 0x0800 BFFF) to write a "magic word" which gives me the information, if we're currently running on SLOT 1 or 2).SLOT 1 : 0x0800 C000 -> 0x0800 3FFFSLOT 2 : 0x0804 0000 -> 0x0807 FFFFMy FW is running on slot 1. It receives the order to update, so it restarts, checks on which slot the new FM must be copied, writes into the flash, and starts again on new slot (and this is done at each update, so FM is running on SLOT1/2 alternatively).Everything works well, except the last step, it always run on slot 1 (even if all the code has been written i

Hello everyone,I am working with the STM32F746G-Discovery board and trying to send ADC sensor data to a cloud server over Ethernet using LwIP (RMII mode). The goal is to send a JSON payload via HTTP POST.What I have implemented so farEnabled Ethernet (RMII) in CubeMXEnabled LwIP (static IP)Enabled ADC1 and UART6 for debuggingGenerated code using AC6/GCCAdded JSON formatting + http_post() callIssues I am facing1) HardFault during LwIP initializationThe system crashes right after:MX_LWIP_Init(); netif_set_up(&gnetif);A HardFault occurs

I have a password obk file:$ xxd PasswordObkFile.obk00000000: 0001 fd0f 6000 0000 0000 0000 5e9b d65f ....`.......^.._00000010: e48e a17e 40ae 126f 76e7 c101 3a73 bf35 ...~@..ov...:s.500000020: c95d 4897 5c5d 1575 a719 8442 184a a46d .]H.\].u...B.J.m00000030: 8134 1172 7da0 dc9e 6418 6bb9 9072 89b5 .4.r}...d.k..r..00000040: aab4 b320 d26f ff5e a45d 8e3d 7750 0000 ... .o.^.].=wP..00000050: 0000 0000 0000 0000 0000 0000 0000 0000 ................00000060: 0000 0000 0000 0000 0000 0000 ............I am running my application with Trustzone disabled (TZEN=C3).I have a C array:

Good evening,I have been trying to get the ethernet port of my NUCLEO-H755ZI-Q to talk to my PC - and have been failing to do so now for a week.I found this manual, but it is for Cube IDE 1.9 - and even after following the described steps I fail to talk via ethernet.I did also find this github repo where I used STM32H7-LwIP-Examples/STM32H745_Nucleo_M7_ETH - and after adapting the IPs somewhat communication via UDP did work.

Post edited by ST moderator to be inline with the community rules for the code sharing. In next time please use </> button to paste your code and a linker script content. Please read this post: How to insert source code. Hi im using STM32H745 MCU, in this for cache coherency for using DMA with any peripherals and using Clean and Invalidate data cache Functions will solve the full problem. if suppose if both the cache and MPU settings are disabled during this time also cache coherency will occur? MPU_InitStruct.Enable = MPU_REGION_ENABLE; MPU_InitStruct.BaseAddress = 0x00; MPU_InitStruct.Size = MPU_REGION_SIZE_4GB; MPU_InitStruct.AccessPermission = MPU_REGION_NO_ACCESS; MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE; MPU_InitStruct.Is

We use STM32H743 to develop a system that needs to display a 1920 * 1080(8-bit pixel depths) graphic on LCD(driven by FPGA)Now our design is that STM32 reads a picture from the SD card, then decodes and sends it to the FPGA through FMC.We tried the software decoder, but it takes almost 5 seconds to decode just one PNG picture. The required time is only 50ms(about 3 FPS for each graphic, so 3*16ms = 48ms).  I just learned that STM32H743  has an internal JPEG hardware decoder, but it seems this JPEG hardware decoder does not support 1920 * 1080? So the only way is to use an external decode chip, am I right?

I've an STM32U5A9J-DK-FreeRTOS and I was looking to a way to stream audio from the PC to the board and vice-versa using the USB-C on board port.I've seen that there's a CUBE extension X-CUBE-USB-AUDIO but it feels it is specifically for the STM32F7Also, on the CubeMX, opening the .ioc file, the only USB option I'm seeing is USB_OTG_HSSo, my question is, the USB-C port on the STM32U5A9J-DK board supports it?I'm also seeing the X-CUBE-AUDIO-KIT but again it feels compatible only for STM32H series

Hello,when my rtc time goes to 23:59:59 to 00:00:00 then my program while loop is slow ex. some led toggle with 500ms toggle time is incress X2 so what is issue?

Title edited for clarity.I am trying to debug an application that is intended to run out of PSRAM on the STM32H7S78-DK. I have created a simple FSBL which initializes the PSRAM and puts it into Memory Mapped mode and then executes a software BKPT to halt the CPU. I then load an application image using the debugger (JLink) into PSRAM and start it. The application appears to run fine but I cannot get any interrupts to fire. The application running out of PSRAM establishes a new vector table in RAM and updates the VTOR register. I have tried both SysTick and an interval timer (TIM6) to generate interrupts but no success. Looking at the peripheral and NVIC registers everything appears to be correct.This is the MPU configuration for the PSRAM region: MPU_InitStruct.Number = MPU_REGION_NUMBER1; MPU_InitStruct.BaseAddress = 0x90000000; MPU_InitStruct.Size = MPU_REGION_SIZE_32MB; M

Post edited by ST moderator to be inline with the community rules for the code sharing. In next time please use </> button to paste your code and a linker script content. Please read this post: How to insert source code. Hello Community, I am working on STM32F746G-Discovery and trying to send ADC sensor data to a cloud server using Ethernet.Cloud API details: URL: https://iot.hummingbirdtek.com/api/dataMethod: POSTContent-Type: application/json What I Have Done: Enabled Ethernet (RMII) in CubeMX Enabled LwIP

I’m currently working on an STM32 project with Ethernet connectivity and LwIP. I want to know the IP address of the STM32 while configuring the network settings in CubeIDE. Here’s my setup: STM32 is connected to a router via an Ethernet cable and my laptop is also connected to same router via wifi. LwIP is being used as the TCP/IP stack. In LwIP settings, there is an option to choose DHCP or Static IP. My questions are: If I enable DHCP, how can I find out the dynamically assigned IP of the STM32? If I use a Static IP, what are the correct parameters to set (IP, Subnet Mask, Gateway) to ensure the STM32 is reachable from my PC? Are there any tips or methods to quickly verify the STM32’s IP on the network, such as through serial print, ping, or a network scanner?

Issue Description:I am unable to ping my STM32F2 board from another computer on the same network. The Ethernet link shows as UP and the MAC/IP addresses appear correctly, but ping requests timeout. I have been debugging this for a week without success.What I’m trying to achieve:Set up basic Ethernet communication using LwIP on STM32F2, assign a static IP (174.16.10.101), and make the board respond to ping.Clock Configuration:HSE: 25 MHzPLLM: 25, PLLN: 200, PLLP: 2 →

Hi,I want to save the data in microSD memory card(for e.g. 4GB) as a file using STM32H573 discovery kit. And gone through with internet search and got some information.  But unable to get the exact idea to how to start with or done it. Found one connector CN5 on the board for SD card. In order to get the above said what are the prerequisties need to be done and what need to be selected in IOC file . Can anyone tell a step wise procedure for this or give an example code would be a great help. Thanks in advance. 

I am running into some issues standing up a basic non-volatile storage access with zephyr on the STM32F413ZH board.  I am trying to provision for 128 bytes at sector 0x08C0000 but for soem reason the offset keeps jumping to the end of the Flash memory flash_stm32: Read range invalid. Offset: 1572864, len: 8Has anyone run into this or something similar?  thanks!

Hi there!Im currently learning STM32 MCUs using Nucleo-F446REI wrote two 'Blinky' firmwares:*One using HAL and CubeMX (.ioc file)*A second one using just HAL (NO CubeMX)What does the FW does?: It just uses the user button on the nucleo, reads the state and "mirrors" that state on the user LED on the nucleoIn the project using CubeMX the firmware works in debug mode and in run mode (directly running on the board)But in the project that doesnt use CubeMX the firmware works fine in debug mode but it doesnt in run modeBoth projects compile with 0 errors and 0 warnings for both, debug and releaseI have read the RM and the HAL documentation but i dont have a clue where is the problemI tried all the solutions from chatGPT and still it doesnt workCan you help me please?What am i doing wrong?I let you the link to my projects if you n

Hello everyone, I am using an internal RTC on STM32L431. After running for 23:59:59 seconds, the time changes to 24:00:00 instead of 00:00:00, and the week day has not been incremented. Why is this?

In stm32l4_hal_flash.h: #if defined (STM32L4P5xx) || defined (STM32L4Q5xx) || defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx) #define IS_OB_USER_TYPE(TYPE) (((TYPE) <= (uint32_t)0xFFFFU) && ((TYPE) != 0U)) #elif defined(STM32L471xx) || defined(STM32L475xx) || defined(STM32L476xx) || defined(STM32L485xx) || defined(STM32L486xx) || defined(STM32L496xx) || defined(STM32L4A6xx) #define IS_OB_USER_TYPE(TYPE) (((TYPE) <= (uint32_t)0x1FFFU) && ((TYPE) != 0U)) #else #define IS_OB_USER_TYPE(TYPE) (((TYPE) <= (uint32_t)0x7E7FU) && ((TYPE) != 0U) && (((TYPE)&0x0180U) == 0U)) #endif The problem is that the L496/4A6 both have nSWBOOT0 and nBOOT0 option bits: #if defined (STM32L412xx) || defined (STM32L422xx) || defined (STM32L431xx) || defi

Hi everyone, dear.I have already managed to generate the necessary strings that represent the html pages, but I need to generate more complex pages. In the example that comes with CubeMX, it simulates a file system. How can I convert a small file structure to these headers?Thanks

Hi ST, i have one question for you. Could you please make "examples" more messy? Is it even possible? Lets see, i believe you can do it even worse. To be honest, i have never saw this nonsense and mess in my life. And i have also worked as ABAP developper. Have you ever heard about rule, that strongly recommends NOT to use "goto"? No? I thought so.Have you ever heard about spaghetti code? Because you created one really huge. That example about UsbX for Stm32u5 is awfull. Who did it? Intern? Student? What is wrong with you? Even renesas is now better than you.