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Hello, I didn't find the layout this board online. can someone help me find the layout of this STEVAL-L99MH98 board? Layout I am asking is not present in the user manual of this board.   Thank you, Br, Gopal

Hello, Does anyone know where I can find the safety manual for L99mh98 octal half bridge driver?   br, Gopal [moderation edit: removed label Gate Drivers, added Automotive Power]

Hello, I updated my StellarStudio from 9.0.0 to 9.0.2 and pin configuration editor stopped working showing just only white page. Reverting version back to 9 is working fine again. Tested MCU is SR5E1E5. Thanks!    

Hello,   I am working with STM32WLE5CC and using the LSCO output (configured via HAL_RCCEx_EnableLSCO(RCC_LSCOSOURCE_LSI), source = LSI) to observe the low‑speed clock externally.   In my application: LSI is used as the RTC clock source RTC is used as the wake‑up source from Stop2 mode RTC is configured in binary‑only mode AsynchPrediv = 30 Wake‑up period = 5 seconds   According to RM0461: “The clock on LSCO is available in Run, Stop, Standby and Shutdown modes.” “In Stop 2 mode, all I/O pins keep the same state as in the Run mode.”  

Hello, I am currently using the NUCLEO-U545RE-Q and trying to set low-power modes with FreeRTOS. I have already seen videos from official ST channel and read documentation but I cannot get to set this functioning when using FreeRTOS and RTC. My goal is to blink an LED every 5 seconds and in the reamaining time go to STOP mode for low power consumption. This are my functions: void StartDefaultTask(void *argument) { /* USER CODE BEGIN defaultTask */ /* Infinite loop */ while(1) { osSemaphoreAcquire(BinarySemaphoreHandle, osWaitForever); printf("Toggle Led\n"); BSP_LED_Toggle(LED_GREEN); } /* USER CODE END defaultTask */ } /* Private application code --------------------------------------------------*/ /* USER CODE BEGIN Application */ void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc) { printf("RTC Callback\n"); osSemaphoreRelease(BinarySemaphoreHandle); } void PreSleepProcessing(uint32_t ulEx

Hi,I am trying to link up a Nucleo-F411RE board to a STLINK-V3PWR unit via the SWD (CN6) header.I am going to make a breakout board for the connector. See image below, I am assuming that I do not have to connect T_VCP_RX and T_VCP_TX to anything on the Nucleo board, am I right?

Hi Do any example bootloader files exist for the SR5E1E5 micro series.  I can see that there are flash examples in the ESDK area of the StellarStudio, but I cannot find any bootloader example files. If there is no example code, then are there any application notes on the process for creating a bootloader that can program the Flash? Many thanks in advance.  

Hello.I'm having trouble transfer the UserApp to SBSFU. Here's the description of the issue.I am working on SBSFU on STM32H753-Eval, So i altered the given sample for my UART to map to ST-LINK VCP. I am able to see logs post this changes. Later I Dissabled all security stuffs with below macro and fully erase the board (by setting RDP level 1->0 ).I'm using the 2-Image example code, All security feature were disabled by#define SECBOOT_DISABLE_SECURITY_IPS in app_sfu.h. I loaded SBSFU.elf onto the board and transferred the UserApp.sfb via YMODEM. However the program went into a infinite reset loop. It is rebooting every time i send UserApp.sfb.  I tried Increasing the Download Timeout from 3000 to 10000 from this macro, same issue  /* Teraterm YMODEM */ /* #

Hi,while integrating the module, we noticed that UDP client connections appear to be explicitly blocked in the driver (w61_at_net.c) for mission_t01 firmware (LwIP offload). The following code only allows TCP and SSL connections:if ((conn->Protocol != W61_NET_TCP_CONNECTION) && (conn->Protocol != W61_NET_TCP_SSL_CONNECTION) #if (W61_NET_IPV6_ENABLE == 1) && (conn->Protocol != W61_NET_TCPV6_CONNECTION) && (conn->Protocol != W61_NET_TCPV6_SSL_CONNECTION) #endif /* W61_NET_IPV6_ENABLE */ ) { NET_LOG_ERROR("Only TCP and SSL protocols are supported for client connections\n"); return W61_STATUS_ERROR; }However, according to the official AT command documentation, UDP client connections are supported:

Hi,I am presently planning to use Viper265K part for High Voltage Buck converter design with below requirements: MinMax  Vin200900V Vout4.5 V+/-5%Iout0.44 A Pout2 W  With above requirements the duty cycle for the device is observed to be 0.5%. Please can you help me to know if the device can be used for such low duty cycle and what would be recommendation from your side for achieving above

Hi,We are using the ST Micro Devices SLVU2.8‑8A1 TVS array on the primary side of the Ethernet connector for ESD protection in a 1000BASE‑T Ethernet design.It is observed that when the SLVU2.8‑8A1 is mounted, the 1G Ethernet link reports FCS errors with ~100-metre cables, whilst shorter-length cables work error-free.When the device is removed, the Ethernet link becomes fully stable and error‑free on the same hardware with longer length cables.Ideally the device should not interact with the Ethernet data being transmitted. Please check how the device can interact with normal datalink propagation. The problem is observed in designs with PHYs from two leading manufacturers. Attaching the images of the device as well.Thanks & Regards,Rohit Dixit

Hi,I'm trying to control a BLDC motor connected to B-G431-ESC1 driver in Open Loop Voltage mode. With Motor Pilot control there's no problems. I'm not able to find the correct HAL commands to use for:A) Set Open Loop Voltage mode ( B) Set the reference voltageC) Set the speed in RPMStart, Stop, Ack Fault commands are ok. AI gave me a lot of indications but nothing seems work ok. Many thanks who will help me.Bye  Rossano 

Hello,I have downloaded the stedgeai for Linux on windows pc and transferred to Linux system running Ubuntu 22.04 .i want to know is it possible to install it in a headless mode where I don’t have to do or click anything on the gui as my Ubuntu system is all console based with no gui.whenever I try to run ./Linux installer I am getting this error ./-linux-onlineinstaller: error while loading shared libraries: libxkbcommon-x11.so.0: cannot open shared object file: No such file or directoryplease let me know how to install it on a headless system.bestR

Hi everyone,I am developing a project on the STM32N657X0H3Q where I need to implement a Dual CDC ACM composite device.I am following the "Standalone" implementation to avoid a full ThreadX dependency, as I plan to integrate this with a FreeRTOS project (using X-CUBE-FREERTOS).While looking at the USBX configuration in CubeMX and the ST Wiki (Introduction to USBX), I noticed the option USBD_COMPOSITE_USE_IAD ( As seen in the picture).If I enable USBD_COMPOSITE_U

Hello,I came across the following problem: whenever firmware writes some data to flash memory, the NRST pin doesn't work. I mean, when low level is asserted on NRST pin the device starts to run software not at 0x0800... address but at 0x1FFF.... The same happens in the debugger: when I press "Reset the chip..." button. I get the message: "Break at address "0x1fff5236" with no debug information available, or outside of program code."The data is written to flash memory page which is  not used by the running program code. Data is correctly written and no error is shown in the FLASH->SR register. I didn't change any option bytes. The device runs at 80 MHz, BOOT0 pin is grounded. What am I doing wrong ?

Hi I have a question regarding use of STL6P3LLH6 MOSFET in the reference design as shown in EVAL-SCS001V1. In this reference, there is only one STL6P3LLH6(T1) used as shown below:   But in the datasheet of STUSB4500, Fig 10 shows use of 2 such MOSFETs as shown below. What is the advantage of using 2 of these? 

I have an issue were the Linux kernel is booting, then it just stops printing out messages from USART6.Meanwhile, optee, u-boot and TF-a is printing out messages from USART6. But not Linux after a while.What can have caused this?My processor is: STM32MP257F.

Hi Community,I am working on STM32H747I-DISCO Board and trying to bringup digital MEMS Mic (MP34DT05) which is integrated on STM32H7-DISCO Board.I am trying to record random voice for 5 seconds and need to play back via audio jack out which is connected to codec also it is integrated on the board. I am sharing you schematic of the board as below:MP34DT05 is connected to MCU directly with SAI4 Interface and Solder Brifdges are provided to connect via codec Here I developed the application code to interface and record via MIC and playback via Audio Jack out.

Hi,I'm working on to get the multiple SAI to Codec to work synchronized as the connection below,1x MCLK1x BCLK1x FSYNC4x DIN4x DOUTWhere the three Clocks 1x lines (MCLK, BCLK & LRCLK) from one SAI master (actual pinout clock) & other SAI (pinout DIN & DOUT) sync clock internally (not sure possible b/w the SAI).SAI1 (clock master) -> MCLK, BCLK, FSYNC, DIN/DOUT -> codec1SAI2 (clock slave) -> (SAI1 MCLK, BCLK, FSYNC), DIN/DOUT -> codec2SAI3 (clock slave) -> (SAI1 MCLK, BCLK, FSYNC), DIN/DOUT -> codec3SAI4 (clock slave) -> (SAI1 MCLK, BCLK, FSYNC), DIN/DOUT -> codec4According to the TRM RM0436 Rev 7 55.4.4 External synchronization should be used between the SAI.does this need external pin connection between two SAI (all three clocks)? I'm facing error when arecord on SAI1 in the background and trying to

I want to measure the MCU temperature using the internal temperature sensor of the STM32U356VGT.Could you provide details on the accuracy of the temperature readings? Additionally, I would like to understand whether the sensor requires user calibration for reliable results, or if it is factory-calibrated and ready to use as-is.

Hi Team,Is there any framework or lib support available from ST for automation testing of TouchGFX based UI either on simulator or on actual device?If anyone has any idea or workaround, then please share!Thanks

Using STM32CubeIDE on macos (with STM32H7431VITx, FWIW), the Debug Console has a pretty poor interface, where there's no readline support and even basic things like "arrow up" to recall the latest  command doesn't work, rather it moves the cursor up in the text. Gdb's output is black, the text I type is green and when executing a command, it gets echoed in red to the console. A while back I ran the same version on macos and Linux; on Linux on it was providing a full terminal with readline support, as you'd expect, but on macos it was like this and it hasn't improved in the intervening years. Is there some setting that I can enabled to make it a proper terminal with readline support and all on macos?Version: 2.0.0Build: 26820_20251114_1348 (UTC)sample screenshot below:

Left commented out SFU_NO_SWAP and defined ENABLE_IMAGE_STATE_HANDLING in app_sfu.h, but when trying to build SECoreBin and SBSFU errors appear:/Middlewares/ST/STM32_Secure_Engine/Core/se_fwimg.h:47:61: error: unknown type name 'SE_FwStateTypeDef'Is there something I am missing? I selected AES-GCM crypto schemeI have followed https://www.st.com/resource/en/application_note/an5056-integration-guide-for-the-xcubesbsfu-stm32cube-expansion-package-stmicroelectronics.pdf (Chapter 8.5)  

Hi all! I'm trying to implement a wear leveling in user memory accessed from I2C for a counter on bit level. My question is: Are ST25DV eeprom byte cells similar to classic ones where each write cycle starts with a clear (which sets the byte to 0xFF) and after it writes 0 bits where needed? Or is there somewhere an inversion taking place? Could someone help me, by pointing out some directions in datasheets for me in this matter? I found another post where memory default state is quoted from the datasheet which specifies that factory default is 0x00, but this doesn't imply that it's default state isn't 0xFF. Thanks in advance, notram

I have been using RFAL succesfully with STM32L4. For a more price sensitive project I need to port the code to STMG070 and I cannot get RFID readings to work. Measuring ampltiude gives same result on both codes:st25r3911MeasureAmplitude(&c); printf("Amplitude %d\n\r", c); The following have been verified:* Same RFID PCB is used for both processors (RFID PCB and processor PCB are connected by pin connector)* Same RFID card is used* Init of RFAL gives ID 13 on both codes* GPIO interrups are generated* Same LDO on both PCB* Voltage to ST25R3911B is stable* Both processors runs at same frequency 16 MHz On STM32L4 the state change (during a succesful RFID read) of rfalNfcWorker goes like:RFAL_NFC_STATE_IDLERFAL_NFC_STATE_POLL_TECHDETECT x 19RFAL_NFC_STATE_POLL_COLAVOIDANCE x 29RFAL_NF