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Hi,I'm working with the NUCLEO-H755ZI-Q, which features dual cores (Cortex-M4 & Cortex-M7). I’m trying to understand whether these two cores have separate debug registers, such as DHCSR (Debug Halting Control and Status Register).I have reviewed RM0399 and the Armv7-M Architecture Reference Manual, but I couldn't find a definitive answer. To investigate further, I attempted to access DHCSR (0xE000EDF0) on AP0 and AP3 using STM32CubeProgrammer, and I observed that both cores displayed the same value. However, when running a project in STM32CubeIDE, where I separately access DHCSR on M4 and M7, I see different values for each core.This discrepancy has left me confused about the debug register configuration on STM32H755. Do Cortex-M4 and Cortex-M7 maintain independent debug registers, or are they shared?Any insights or official documentation references would be greatly appreciated!

These are the ECCN for these processors. The code for MP1 and MP2 are different. When purchasing parts from retailer in the USA, an export authorization check was done on their website (no idea why) and retailer said they had to wait for the US agency for export clearance , that took 2 days to clear. After clearance but he invoice stated:These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimateconsignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any personother than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, withoutfirst obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulationsAlmost all other STMICRO MCU are classified a 3A991.a.2. But ut states that assembly is allowed but not without authorization

Hello,I'm trying to get an Ethernet ping with NUCLEO-H755ZI-Q to check if everything works. To eliminate any possible errors from my side, and since there are no ready projects for H755, I'm using this project that I've found in this post. I have:opened it with my STM32CubeIde using "Open project from file system" option,checked that pinout for RMII agrees with documentation,physically connected my Nucleo to Ethernet port in my laptop using cable,built the project and ran on the Nucleo board (Run Configuration -> choose configuration for M7 -> Run),opened Windows PowerShell and executed command "ping 192.168.2.120".Every time ping does not work and I get "Request timed out." in response. LEDs are blinking on the board and I can debug it correctly, so I assume the program is running as supposed.What am I supposed to do differently? Do I need to change some network settings on my laptop? Choose different IP address for Nucleo board?

TCXO is not supported in the SUBGHz_PHY code generated by STM32CubeMX for the STM32WL5MOCHTR.  Even with the HSE enabled in the RCC panel, this dialogue box is still shown. According to the datasheet, the internal clock labeled "HSE" is a TCXO, and must be configured as such. Even with the fix applied to the clocks within SystemClock_Config, the system fails to generate valid code.void SystemClock_Config(void) { ... RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS_PWR; ... }So there is an issue with the internal model within STM32CubeMX (as of 3/13/2025).When Code is Debugged, the code always gets stuck in the function "HAL_SYSCFG_EnableVREFBUF."Where should we go from here? 

getting following error while generatingMotorControl reference pack not found: "../../../../Middlewares/ST/MotorControl"I have STEVAL SPIN3202 board for controlling BLDC motor in FOC mode, but while generating I got this error, please guide.

Hi,I’d like to use the vectorized version of a font (bebas-neue-regular.ttf), but the glyphs don’t quite match the original shape. Why is that, and how can I fix it?Could it have something to do with the arrow next to some nodes? I don’t know much about glyph design.The attached example compares the bitmap and vector versions of the font.Thanks for help.

Hey Folks!Is there a way to select multiple sectors to erase on an External Flash, instead of clicking on every entry?I have tried holding down SHIFT, e.g. Click 0, Hold shift, Click 5. That just selects 5. Alternatively is there a CLI tool where I can provide an address range to erase?I am using 2.19:Kind Regards, 

Hello,I am trying to understand this document:https://wiki.stmicroelectronics.cn/stm32mpu/wiki/How_to_deploy_SSP_using_a_step-by-step_approachGenerally speaking, I miss some context between the "SSP is nice to protect your firmware through HSM" and the how-to with many acronyms and missing explanations.I spend a couple of days reading related documentation and still feel very lost."2.2 Payload file"I understand this step as the creation of a file with all the secrets in it, including HSM and RMA keys/password.What are the meaning of RSSe, DHUK, BHK or DHUK_xor_BHK acronyms?** Question 1**  What are RSSe, DHUK, BHK ?2.2.1:My page looks very different. This section is not helpful.2.2.1.2:I believe this is the public key generated in step 2.1.1.What is the RMA password? I understand that this password allows to protect RMA mode, but how is it created? should I provide a file with a random 16 character password? or is this an AES key? Is it one of the private keys generated in step 2.

I've already contacted support, so this post is just for community.There's a bug in HAL_SetTickFreq function (stm32f4xx_hal.c)---8<---HAL_StatusTypeDef HAL_SetTickFreq(HAL_TickFreqTypeDef Freq){ HAL_StatusTypeDef status = HAL_OK; assert_param(IS_TICKFREQ(Freq)); if (uwTickFreq != Freq) {  uwTickFreq = Freq;  /* Apply the new tick Freq */  status = HAL_InitTick(uwTickPrio); } return status;}--->8---If HAL_InitTick fails, the frequency remains unchanged whereas uwTickFreq is changed. E.g. I have stm32f407vgt6 working on 168MHz with 1kHz SysTick . I want to set SysTick to 10Hz, so I call HAL_SetTickFreq( HAL_TICK_FREQ_10HZ ). Eventually SysTick_Config fails because (16800000 - 1) is bigger than SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL). But uwTickFreq is already == HAL_TICK_FREQ_10HZ, so the ticks are now counted incorrectly. HAL_SetTickFreq function should be changed to something like this:---8... if (uwTickFreq

Hello everyone,We encountered a problem while setting up our benchmark on NanoEdgeAI.When we want to select the signals, we don't have a "Select All" button.So we have to manually select all the boxes. The problem is that we have over 4,000 signals to select, which is tedious to do by hand.So I'd like to know if there's a way to select everything so we can run the benchmark?Thank you for your help!

Greetings,I have a B-U585I-IOT02A. I am trying to connect the board to the STM32CubeProgrammer using the USB-C. I placed the BOOT0 jumper to 1. And when I go to USB, the Port shows "No DFU detected". Any clue what steps I need to take in order to make it work? I am running Debian 12.Thank you!

Under what circumstances is the 32.768kHz clock signal present on the PC15-OSCX_OUT pin of the STM32C071 product?

Hello,We are using the STM32H573 in a new project. We have designed a custom board using the 64-pin LQFP package.The MCU connects to a ethernet PHY using RMII interface.Our product has to meet strict radiated emissions levels that are 7dB lower that CISPR class B.In our pre-compliance emissions testing, the product passed class B limits, but had emissions above the lower limit. The design is using standard best-practices for EMC compliance (e.g. solid power/ground places, good decoupling, controlled impedance board stack etc etc). Here are the results, red limit line is class B, black is the lower limit we have to pass.Are some investigation, we found the emissions we all harmonics of the 50MHz RMII clock. e.g. at 400MHz, 950MHz, 1GHz.Are further investigation we believe the issues is caused by ground bounce in the QFP package. The 50MHz RMII clock is causing the STM32 die to bounce at 50MHz and all its harmonics due to the lead inductance of the package. This causes all the other outp

I've designed a custom board using the STM32H747I MCU, following the STM32H747I-DISCO reference design. In my design, I've connected VLXSMPS to VDDLDO, similar to the reference design. I'm currently setting up the power configuration in STM32CubeIDE and need clarification on the correct HAL_PWREx_ConfigSupply() parameter to use. My options seem to be: #define PWR_DIRECT_SMPS_SUPPLY PWR_CR3_SMPSEN /*!< Core domains are supplied from the SMPS only */ #define PWR_SMPS_1V8_SUPPLIES_LDO (PWR_CR3_SMPSLEVEL_0 | PWR_CR3_SMPSEN | PWR_CR3_LDOEN) /*!< The SMPS 1.8V output supplies the LDO which supplies the Core domains */ #define PWR_SMPS_2V5_SUPPLIES_LDO (PWR_CR3_SMPSLEVEL_1 | PWR_CR3_SMPSEN | PWR_CR3_LDOEN) /*!< The SMPS 2.5V output supplies the LDO which supplies the Core domains */ #define PWR_SMPS_1V8_SUPPLIES_EXT_AND_LDO (PWR_CR3_SMPSLEVEL_0 | PWR_CR3_SMPSEXTHP | PWR_CR3_SMPSEN | PWR_CR3_LDOEN) /*!< The SMPS 1.8V output supplies an external circuits and the LDO. The Core do

I'm having the same problem on 2 different boards. I gen'd up a simple program using CubeMX and I'm only sending some data to both ports at the same time: void StartTask02(void const * argument) { /* USER CODE BEGIN StartTask02 */ /* Infinite loop */ int i; for(i = 0;i < DATA_SIZE;i++) data[i] = i; vTaskDelay(1000); for(;;) { vTaskDelay(2); HAL_UART_Transmit(&huart1, &data[0], DATA_SIZE/5, 100); HAL_UART_Transmit(&huart2, &data[0], DATA_SIZE/5, 100); } /* USER CODE END StartTask02 */ } I thought maybe one was a 'knock-off' because the LED's aren't colored while the other is.

Does the STM32L051 have any unpublished errata for the EEPROM?The STM32L151 has an errata note that an EEPROM write while the MCU gets reset could look it up. Is the same true for the STM32L051? STM32L051 does not mention anything in the errata. But if they share some IP, maybe it could be the same for STM32L051? 

Hi folks,I have SDMMC1 working on CM7 on my H755 Nucleo. Now I want to migrate FAT-FS and the uSD to CM4, in which case I think I should switch to the SDMMC2 peripheral since it's in D2 domain along with CM4.I have a some questions about this and would be grateful for advice.Firstly, am I right in believing that although the CM4 core can access SDMMC1 via the D2-to-D1 AHB, this is going to be slower than using SDMMC2, and is any such speed penalty significant?Secondly, assuming that I should indeed use SDMMC2, I can't do this because PB14 is reserved for LD3 whilst this is needed for D3 on SDMMC2. I see from the data sheet that I can remove R75 in order to free-up PB14, but I wonder how CubeIDE knows that I've done this, since I've tried resetting the pin (in CubeIDE) and although it let's me do this and then generates code using SDMMC2, the next time I load the .ioc I see that SDMMC2 is showing as not available and has been unchecked.Finally, why can't I use SDMMC2 in 1-bit mode, sinc

  I have several problems with the NUCLEO-H7S3L8 board   1) When initializing the USB - HS peripherals, I getting stuck in the "USB_CoreReset" function: Related problem and after some time when (count > HAL_USB_TIMEOUT) the program goes to Error_Handler(). This happens identically when I initialize the project with the board selection (file nucleo_h7s3l8_test.rar) The project is launched on an internal flash drive without using XSPI, i.e. only the ..._BOOT project is used and ...APPLI is always closed.   2) Then I started digging into the examples and using the UM3294 instruction 5.2.3 Developing an application in the external flash memory, page 21 The project is presented below: STM32Cube_FW_H7RS_V1.1.0\Projects\NUCLEO-H7S3L8\Applications\USB_Device\CDC_Standalone But the program never goes into debug and gets stuck at a strange address.   I tried to run only ..._BOOT but the initialization of the external memory is going through errors and as a result,

I am using an STM32U585QI.  I have some memory mapped PSRAM that I'm using.  I have enabled DCACHE, but do I have to manually do something with the MPU for it to cache memory accesses to/from the memory?  The reference manual says:"In addition, the AHB bus traffic to the memory regions can be cacheable or noncacheable.An incoming memory request to DCACHE is defined as cacheable according to its AHBtransaction memory lookup attribute....These AHB attributes depend on the memory protection unit (MPU) programming for theaddressed region." If I don't call HAL_MPU_Enable or set it in any way, will memory mapped and DMA reads/writes to the external memory region go through the data cache?

Hello All, I need to change the touch GFX project name MyApplication_747I to something else, I am trying to change it from config but touch gfx is not allowing it to change. I tried to edit and modify the  .touchgfx file and changed the name from "Name": "MyApplication_747I ",  to  "Name": "UI_Software", along with "ProjectFile": "../../STM32H747I-EVAL.ioc", to "ProjectFile": "../../IPL_UI_Software.ioc", Additionally I have changed file ApplicationTemplate.touchgfx.part  in this "Name": "IPL_UI_Software", and "ProjectFile": "../../IPL_UI_Software.ioc", While loading the file and opening the touchgfx project using the .touchgfx project I am getting attached Error. Could you please suggest what further modification i need to make or any corrections to do so that i can change the desire name of project safely. Attached are the logs for your reference to get better clarity. BR,Shiv

Hello,I am working in STM32H745I-DISCO since January. Yesterday I have disconected the USB of CN14 connector ( I used it for programming/debuging and powering). This morning I have connected de USB but the board doesn´t work. After test de voltages I have realised that the st-linkc3 does not pull up the pin T_PWR_EN of component U24.I have tried to connect through stm32cubeprogramer but Error: no debug probe detected appears.There are any way to recover this?Thank you in advance. 

Hi Community,I am designing an NFC card reader using a combination of the ST25R3916B NFC frontend and the STM32L476 MCU.The ST25R3916B has four supply input pins:VDD_IO (pin 1): Connected to 3.3V for all serial communication.VDD_A (pin 7): Typically connected to 5V by default from the booster.VDD_RF (pin 9): Also typically connected to 5V by default from the booster.VDD_TX (pin 10): Typically connected to 5V by default from the booster.In my setup, VDD_IO is powered by a 3.3V supply, while VDD_A, VDD_RF, and VDD_TX are powered by a 5V booster supply, as seen in the ST25R3916B-EMVCO reference schematic.My question is: Is it okay or recommended to supply these three pins (VDD_A, VDD_RF, and VDD_TX) with 5V? I originally planned to power everything with a single 3.3V supply, but I noticed in the reference schematic that they are supplied with 5V. Would it make any difference if I powered these three pins with 3.3V instead of 5V? Reducing the number of supply voltages by using a 3.3V suppl

Hi, I find the search system on the ST website to be lacking. There are a lot of parameters I can't search for/filter by. Is there an ST e-mail / form contact I can use to ask for help? If anyone here can help, I'll try to describe what I am looking for: I am interested in an MCU/MPU that has: A RAM controller for some kind of DRAM that would give me 128, 256 or even 512MB Graphics acceleration The fewest steps possible to get the video out to HDMI (scaled to 720/1080p with interpolation) I found the STM32H7R7A8, which seems really good but the display controller only goes up to XGA. Could I somehow scale that up when converting to HDMI? I can get by with 8/16 pixel depth, if that helps. The STM32MP135DAG7 looked interesting but has no graphics acceleration.

I have this 2 programmers, stlinkv2isol and stlinkv3. With the first, I'm able to program and debug my board. But with the second, no, I received a message like this   ST-LINK SN : 0050002E3331510633323639 ST-LINK FW : V3J13M4B5S1 Board : STLINK-V3SET Voltage : 1.78V Error: No STM32 target found! If your product embeds Debug Authentication, please perform a discovery using Debug Authentication 2nd connect tentative with frequency (8MHz) ST-LINK SN : 0050002E3331510633323639 ST-LINK FW : V3J13M4B5S1 Board : STLINK-V3SET Voltage : 1.77V Error: ST-LINK error (DEV_CONNECT_ERR) Encountered Error when opening C:\ST\STM32CubeIDE_1.16.0\STM32CubeIDE\plugins\com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.win32_2.1.400.202404281720\tools\bin\STM32_Programmer_CLI.exe Error in STM32CubeProgrammer Shutting down... Exit. I'm using the JTAG connector of stlinkv3 (CN2). Thank you.

Hi ST members！I have a question about FCC test settings, as the reference shows，I need set the ST25R95 in transmitting a continuously ASK modulated signal. How can I do this？I did not find any information in its datasheet thanks！