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Added "DHCP" in the title to give the context. Using an STM32H7S78-DK I try to set up the network to join an IPv4 network through DHCP. I did set up the board using CubeMX, standard configuration, MPU activated. FreeRTOS + LwIP Removed all other interfaces I don't need. Made sure the Ethernet clock shows 50MHz The LED's on the RJ45 start to blink (Orange LED blinks with packets exchanged) but I get no IP address. digging in the possibilities I added a simple routine to monitor the DHCP advancements. struct dhcp *dhcp_data = netif_dhcp_data(&gnetif); if (dhcp_data != NULL) { printf("[DHCP] State: %d, Retries: %d\r\n", dhcp_data->state, dhcp_data->tries); } this shows I get stuck in state 6: waiting for an ACK -> what could be behind this? can someone share an .ioc file that sets everything correctly in MX?

My situation:Trying to step through/debug a project that will run from the QSPI on the STM32H750B-DK in VS Code (on linux, if that matters). In order to test out the toolchain, I've started with two (separate) workspaces: on has the ExtMem_Boot project, the other the LTDC_Paint demo.What works:A/ Building both projectsB/ Flashing (via tasks.json and STM32CubeProgrammer) the ExtMem_Boot projectC/ Debugging the ExtMem_Boot project via the VS Code debug viewD/ Flashing (via tasks.json, STM32CubeProgrammer and the ExtLoader MT25TL01G_STM32H750B-DISCO.stldr) the LTDC_Paint demo.E/ Launching the debug flow of LTDC_Paint (after modifying launch.json to include the serverExtLoader)What fails:The debugging automatically halts at the Reset_Handler of the startup file, the instruction for loading the stack pointer. But at this point I can't seem to step through it. Even just pressing the run arrow seems to result in a crash, rather than the actual execution.What I find suspicious:The debug consol

 I am using CUBEMX Version   6.10 STMCUBE IDE                        1.16.0FW version                               F7V1.17.0Enabled LWIP ETH With FREERTOS CMSIS2same settings did with cmsis version 1 it's working but with cmsis version2 NOT WorkingI configured on internal Timer TIM1 as soon as I connect Eth Cable program counter not reaching threads & Timer callback / TIM6(systick update).I checked in fault handlers it is not reaching here ETH State in eth handler is (READY STATE --> START STATE)Error code in eth handler is zero.Here I have attached my .ioc fileI have updated flash ld file as per repository code LWIP Debug Messages : netif: netmask of interface set to 255.255.255.0 netif: GW address of interface set to 192.168.10.10 netif_set_ipaddr: netif address being changed netif: added interface

Split from Transmit line stuck high on STM32F415 with MAX3232 - this is a new questionWhat ST board would you recommend? This is not really my realm. Thanks!

Trying to program the option bytes I get the error message shown below. Can someone tell me what is wrong? I have tried with and without the displ and I have also tried with only one option byte at the time.C:\Temp\BMSM-18>"C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin\STM32_Programmer_CLI.exe" -c port=SWD -ob TZEN=B4 SECWM1_STRT=0x0 SECWM1_END=0x0 SECWM2_STRT=0x1f SECWM2_END=0x0 displ-------------------------------------------------------------------STM32CubeProgrammer v2.22.0-------------------------------------------------------------------ST-LINK SN : 003F00383234511537333934ST-LINK FW : V3J15M7Board : STLINK-V3MINIEVoltage : 3.29VSWD freq : 8000 KHzConnect mode: NormalReset mode : Software resetDevice ID : 0x478Revision ID : --Device name : STM32H533/523NVM size : 512 KBytesDevice type : MCUDevice CPU : Cortex-M33BL Version : 0xE2SFSP Version: v1.2.0Debug in Low Power mode enabledError: Wrong command -ob tzen=b4 secwm1_strt=0x0 secwm1_end=0x0 secwm2_strt

This error pops up everytime I try creating a new STM32 project when downloading the selected files during the first stages of creating a project. My internet connection is fine and this wasn't an issue some weeks back with the last project I created. Any assistance on this issue from anyone will be very helpful because I'm a quite a newbie to CubeIDE. Thanks.

Hi!I'm building a device using a STM32U31xx, connected to a Network Chip via I²C (PB6/7) and 2 GPIOs for Reset and BOOT0 Pin. The intention is to have new firmware downloaded onto the network chip, and flash new firmware to the STM32U031 via the system bootloader.I power up the system to invoke a power up reset on the ST device, I immediately flash firmware and ask the chip after another reset cycle for the new firmware version to confirm the new firmware was flashed.The behavior I observe is the following:- if the STs Option Byte nBOOTSEL is 0, the process works just fine, very reliably.- if nBOOTSEL is 1, the process fails even if I mass erased the STs flash memory entirelyThis is contrary to my understanding of AN2606 Table 2, pattern 11, that states that the empty check should start the system bootloader no matter the state of nBOOTSEL bit or BOOT0pin.I intended to have the ST chip flashed on production without previous intervention into the STs option bytes (nBOOTSEL is 1 on deliv

Hello,I am writing this because I am unable to enable the SAI on this development board. The strange thing is that I actually managed to enable it before and it was working correctly. However, while implementing another feature, I switched branches and worked on a different GitHub branch for some time. When I came back, I noticed that the SAI was no longer starting.At first, I thought I had made a mistake in a commit, so I created a completely new project where the only goal was to start the SAI. Even though I believe all the steps are configured correctly, the MCK clock never starts, and the MCKEN register bit never becomes enabled. I am attaching screenshots of the SAI registers below. As shown in the screenshot, the SAI is enabled, but I cannot see any clock output on the oscilloscope. As I mentioned before, what confuses me the most is that two weeks ago, using the exact same development board, I was able to make it work correctly.I tried adding the following line inside the M

Hi all,I'm looking for recommendations on eMMC chips that are known to work reliably with the STM32H743 via SDMMC1 in 8-bit mode.I've gone through a number of threads here and put together what I've found so far:- Micron 4GB (MTFC4GACAJCN) — comes up often, though some posts mention HAL misreading certain CSD fields (appears cosmetic rather than functional)- Kingston 4GB — confirmed working with SDMMC1 + FatFS + FreeRTOS, corruption reports seem tied to FatFS rather than the chip itself- Samsung KLM series — functional but VCCQ voltage negotiation adds complexity- Kioxia THGBMDG5D1LBAIL — 153-ball WFBGA, eMMC 5.0, fewer reports but looks promisingHappy to keep things simple — 3.3V on both VCC and VCCQ, no need for HS200/HS400.Would love to hear from anyone who has had long-term success with a particular chip, or any that are worth avoiding. Any layout tips for the 153-ball WFBGA package are also welcome.

I'm using an STM32H7S78-DK with TouchGFX and FreeRTOS. I would like to limit the framerate of the target to 30fps but withouth reducing the LTDC frequency.Basically having the VSYNC fired at 30fpsI've already set the  ((touchgfx::HALSDL2*)&hal)->setVsyncInterval(33.333);In the simulatorIs there a way to force it on the target?

Is there any utility in the holes and silkscreen circles around the TFBGA225 on the NUCLEO-H7S3L8?  It appears to be the same pattern on the Discovery board, suggesting it might be for BGA placement or maybe a heatsink. Edited to put the image in-line for better visibility

Hello Team,We are using the internal SMPS configuration for the core power supply. However, the power-up sequence does not specify the timing requirements for the different stages.Could you please provide the timing details for the following? What should be the time duration for the PWR_ON signal to transition from low to high while VDD and VDDA18AON are rising (Step 1)?After PWR_ON goes high, what is the required time duration for VDDA18PMU / VDDSMPS to rise (Step 2)?What is the exact meaning and function of the SDEN signal?Are there any additional considerations or recommended guidelines to be followed during the power-up and power-down sequence? Thanks 

Hi, hope you doing good,In our design, we are using the ST60A3H1C1CCEPY3 controller. please clarify if there are any layout restriction or keep-out zones around the controller where other peripherals should not be placed.Thanks,

Hello, I am using an **STM32 NUCLEO-N657X0-Q** board with the **B-CAMS-IMX camera module**. Originally, the board was working correctly. In **DEV BOOT mode**, I loaded and ran my AI model, using the B-CAMS-IMX camera sold by ST. The board connected normally to my laptop, and I was able to confirm that the AI application was running correctly by viewing the camera output and the AI object detection result on my laptop. I also changed the BOOT pins and confirmed that the same AI application worked correctly in **Flash Boot mode** as well. After that, I wanted to test whether the board could run from an external power supply instead of being powered through ST-LINK. So I changed **CN9 from 1-2, STLK power, to 5-6, VIN power**, following the description in the official NUCLEO-N657X0-Q documentation. Then I applied **7V from a DC power supply to the VIN and GND pins** of the NUCLEO-N657X0-Q board. I carefully checked the polarity and connected VIN and GND correctly. When I supplied 7V throu

Hello Team, Hope you are well! Could you confirm if the following top marking on ST4SI1M0008SCIFW is correct? 8942310525 000000923 FN527 Many thanks! Robert

Split from  ST87M01 : MAX length of the data returned by AT#IPREAD - which is solved.This is, indeed, a new question.Hello Didier,I have an additional question on this topic (I don't know if I should create a new post, but this question is very much linked to the previous one...) :- From the ST87MXX AT Command User Manual §9.8 AT#IPSENDUDP, the max IP frame size is 1400 bytes- But from ST87MXX TCP/UDP-IP Application Note §3.2 IP default parameters command, the max IP frame size is 1600 bytes,Is there a mistake in one of these documents, or is there something that I didn't understand ?Best regardsThierry

Post edited by a ST moderator. Please use English in this community. Please read How to write your question to maximize your chances to find a solution   手册上写着在高分辨率模式下功耗 90 µA，在低功耗模式下功耗低于 1 µA。可是我用示波器串联电阻抓出来的功耗接近1MA，并且未使用MCU配置传感器时功耗就已经接近这个值了。传感器通过开发板的3.3V接口进行供电。电路图如下所示，哪里存在问题呢？ Translation: The manual states that the power consumption is 90 µA in high-resolution mode and less than 1 µA in low-power mode. However, the power consumption I measured with an oscilloscope using a series resistor is close to 1 mA, and this value is already close to the power consumption even without configuring the sensor using the MCU. The sensor is powered through the development board's 3.3V interface. The circuit diagram is shown below. Where is the problem?

I am working on SDRAM execution using FMC on STM32H563ZI (NUCLEO-H563ZI board) with external SDRAM connected through FMC interface. Our target is: Execute application sections from SDRAM Place heap and stack in SDRAM Enable automatic scatter-loading/copy from internal flash to SDRAM during startup We are facing an issue where: SDRAM initialization appears successful Manual SDRAM read/write access works in application runtime But automatic copy/scatter-loading from Flash to SDRAM during startup is failing Application execution from SDRAM is unstable and leads to HardFault/reset handler Below are the detailed steps and observations. CURRENT STARTUP FLOW Reset_Handler→ SystemInit()→ PLL/System clock configuration→ FMC GPIO configuration→ FMC SDRAM initialization→ SDRAM command sequence→ __main()→ scatter loading→ main() We intentionally moved FMC/SDRAM initialization into SystemInit() so that SDRAM becomes available before scatter loading. CLOCK CONFIGURATION We configured P

I'm trying to use _Atomic with 64 bit objects, but I get a link failure:undefined reference to `__atomic_load_8'The internet says I need to add an option to the link command:-latomicHowever, it looks as if that library is not included with the ST tool chain:cannot find -latomic: No such file or directoryHas anyone managed to get this working?There are a number of workarounds that could be used here, but it would be much easier to use the native C feature that's been available since C11.I'm using STM32CubeIDE V 1.18.1 with GNU Tools 13.3

Hello everyone! I have a problem with reterning ticks in line "measure_speed_rpm = speed_reference / LL_TIM_GetCounter(TIM2);". speed_reference is const variable and equals 15000000. When I looked at Serial Monitor, it's indicated: (picture)That's mean that LL_TIM_GetCounter(TIM2) returns '1' sometimes. Nothing in my code not calling void EXTI1_IRQHandler(void), except EXTI Interrupt. And the main question is - Why it reterns only '1'??? Not 2,3 e.t.c.Thank you for help! void EXTI1_IRQHandler(void) { if (LL_EXTI_IsActiveFlag_0_31(LL_EXTI_LINE_1)) { LL_EXTI_ClearFlag_0_31(LL_EXTI_LINE_1); static uint8_t edge_switch = 0; if (!edge_switch) { edge_switch = 1; LL_TIM_SetCounter(TIM2, 0); } else { edge_switch = 0; measure_speed_rpm = speed_reference / LL_TIM_GetCounter(TIM2); NVIC_SetPendingIRQ(SPI1_IRQn); // SPI1_IRQHandler is free vector in list, that's why I use it for PID update trigger } uint8_t hall_index = HALL_Read(); SixStep_SetPhas

The STM32F415 transmit and receive lines are connected to the MAX3232 chip. The board also contains chips to control LEDs and read tokens, which are controlled by the STM32F415, and those functionalities work, but I am having issues with the RS-232 communication. I get nothing on the receiving end. When I hook up a scope to the transmit line for UART4 (pin 51) on the STM32 chip, it is always high (3.3 V) and nothing is transmitted. What could cause this issue?

CubeProgrammer 2.22.0 under MacOS 26.4.1 is not able to connect to my NUCLEO-G431, with the log window showing:ST-LINK error (DEV_CONNECT_ERR)Strange thing is this only happens when I have a direct cable connection between the USB-C port on the Mac and the ST-LINK V3 USB on the board - it works as expected if I connect via a USB-C hub.VS Code is also not able to connect to the board to run a debug session without the hub, so I suspect this is an ST-LINK USB driver issue on the Mac.

Hello,I am trying to create a project with Cube AI studio v1.2.My toolchain and libraries are well detected with Cube AI studio v1.1, and I can create a project.However, it is not the case for the Cube AI studio v1.2. The toolchain paths seem valid, but when creating a project no IDE is proposed at all, as shown in the attached image. Could you help me please ? No debug logs are generated. Versions :Cube AI studio : 1.2CubeMX : 6.17CubeIDE: 2.1.1CubeProgrammer : 2.22.0EdgeAICore : 4.0 

Hello,I've tried to reinterpret a char16_t string (specifically u"Hello")to UnicodeChar* usingreinterpret_cast<const Unicode::UnicodeChar*>they are the same ?What is the difference between them ?

Split from this thread  My firmware is based on this ccid usbd driver https://github.com/STMicroelectronics/stm32-mw-usb-device/blob/master/Class/CCID/Src/usbd_ccid.c . The issue that I face, the PC finishes receiving data immediately after receiving 256 bytes (10 bytes of header + 246 bytes of data). when I want to send to pc 253 bytes of data + 10 bytes of header (263 bytes in total) by splitting (64 bytes by 64 bytes) the PC finishes receiving data immediately after receiving the fourth chunk which is 256 bytes (10 bytes of header and 243 bytes of data), It doesn't wait for the fifth chunk, which carries the remaining 7 bytes of my data which arrives in an unknown message despite the fact that I define the size of the data to be sent as 253 bytes. Images 1 and 2 show these details captured by wireshark software.12 this is my code used to send data by chunks : uint8_t SC_Itf_XferBlock(uint8_t *ptrBlock, uint32_t blockLen, uint16_t expectedLen, USBD_CCID_BulkIn_DataTyp