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According to page 118 of stm32wb55ce frequency needs to be exactly 32 mhz with no option of holding any other value at all. However when in stm32cube ide the clock configuration tool lists 4-48 mhz as acceptable input frequency for HSE.Is the datasheet or stm32cube ide wrong?

Hi, i have configured BKIN pin to detect fault for my overcurrentSo for my motor driver if this pin sense BKIN input. How much time it be will taken by my microcontroller to sense and to act to shutdown my PWM gate signalsIs it hardware glued logic that can work independently fast without existing code runningPlease give any value in micro or nano seconds how much fast it can operate. Also any effect of maximum temperature which can cause delay in to it like ambient 125 deg C as device's \max temp range, is it temperature dependent.Below are details 

Hi everyone,I’m working on a project that requires developing a driver for the Goodix GT2931 capacitive touch controller using an STM32 microcontroller. While I’ve set up basic I2C communication in STM32CubeMX, I'm struggling with the driver code implementation.Challenges:1. Register Mapping: I’m unsure about the correct register addresses for the GT2931. If anyone has experience or documentation, I’d appreciate guidance.2. I2C Communication: I'm facing issues with structuring I2C read/write sequences. Any code snippets or explanations would be helpful.3. Touch Data Handling:- Reading Coordinates: Need help understanding how to correctly read and interpret touch data.- Interrupts: Advice on handling touch interrupts efficiently would be great.Request:- Sample Driver Code: If anyone has a driver for the GT2931 or similar, sharing it would be very helpful.- Best Practices: Tips on optimizing I2C communication, reset timing, and accurate touch data capture.- MCU: STM32H743IIT6Any assistan

Can Single DMA channel be used for multiple DMA Streams?As per Table 43. DMA1 request mapping in reference manual, Can I use Channel 6 for Stream0 (TIM5_CH3), Stream 3(TIM5_CH4), Stream 4 (TIM5_CH2).I understand that Single stream I cannot use more than one channel. But how about using same channel with multiple streams? Is it ok?

hello alli am having stability issues with a sample code that uses ethernet with lwip and freertos.practically the operation is unstable, after a few resets it works but then hard faults appear:HardFault_Handler() at stm32h7xx_it.c:88 0x8000f88<signal handler called>() at 0xfffffffd__ISB() at cmsis_gcc.h:935 0x800d16eSCB_InvalidateDCache_by_Addr() at core_cm7.h:2,528 0x800d16eHAL_ETH_RxLinkCallback() at ethernetif.c:957 0x800d16eHAL_ETH_ReadData() at stm32h7xx_hal_eth.c:1,104 0x8005a9clow_level_input() at ethernetif.c:488 0x800cbe0ethernetif_input() at ethernetif.c:514 0x800cc1epxPortInitialiseStack() at port.c:214 0x8010740 how can i solve this problem?I use CubeIDE MX Version: 1.16.0Build: 21983_20240628_1741 (UTC)below is the code /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ******************************************************************************

Hello,I am using STM32WB55CEU6, when using EXTI callback with BLE and LPM enabled, the MCU never enters the desired STOP2 power mode. The callback triggers every 20 seconds and is used to set a task by calling  UTIL_SEQ_SetTask(...).When a virtual timer is used (no EXTI callback) to set the task, MCU enters STOP2 when there is nothing to do, as expected.Is the EXTI callback behavior an expected behavior (does EXTI break the LPM)? Is this a consequence of the sequencer being not re-entrant?Thanks! 

Hi, I'm trying to create a 4x4 point cloud using a VL53L7CX-Sensor. I already got the x, y and z, but I am not sure if the values are right. My approach:*iter_x = static_cast<float>(kMillimeterToMeter * cos(w * fovPerPixel - kFov / 2.0f - DegToRad(90.0f)) * depth);*iter_y = static_cast<float>(kMillimeterToMeter * sin(h * fovPerPixel - kFov / 2.0f) * depth);*iter_z = static_cast<float>(kMillimeterToMeter * depth);But the points doesn't seem right...Any help would be appreciated!  

Hello AllDoes anyone know how to connect X-NUCLEO-IHM08M1 with NUCLEO-H563ZI?I would to evaluate it with MC workbench 6.0.3.  However. I am not sure how to connect it together.It looks like I CAN'T plug it directly, because the slot and pins are not matched. 

Hi,I use an STM32WB chipset for my device and my application reads sensor data and sends over the BLE when the device is connected. When the device gets disconnected then after 30 seconds it should STOP BLE advertisement and RF also, go to CPU sleep and wait for GPIO interrupt to wake. I have tested a development for CPU sleep when BLE is not enabled and it is working fine, The CPU goes to sleep and wakes on GPIO interrupt, but after enabling the BLE, it is not going to sleep.   void cpu_sleep(){ if(cpu_running_status == BA_ENABLE){ cpu_running_status = BA_DISABLE; HAL_SuspendTick(); LL_PWR_SetPowerMode( LL_PWR_MODE_STOP2 ); LL_LPM_EnableDeepSleep( ); /**< Set SLEEPDEEP bit of Cortex System Control Register */ __WFI(); } } void cpu_wakeup(){ if(cpu_running_status == BA_DISABLE){ cpu_running_status = BA_ENABLE; HAL_ResumeTick(); HAL_Delay(10); } }  Here I have added the snippet of code which is working fine without BLE 

Hi, new to microcontrollers, I want to use an STM32WBA54 for the BLE and have it control: a class D amp, a Led strip  What I need at this moment is to understand the connections I need in order to have the chips comunicate and work with each other. Once this is established, I will move forward into settings and programming. I chose the STM32WBA54 because the audio signal will be transmitted via Bluetooth and because it has a SAI interface which I need to connect to the AMP TAS5827 I guess. So basically the physical connections I need are: I2S (LRCLK, BCLK, DIN) between STM and TAS I2C (SDA, SCL) between STM and TAS --- this I am not sure of if needed and why A PWM output for the WS2812 Led strip Plus eventually 4 GPIOs between TAS and STM (Fault, Mute, Power Down, Warn) --- are these In or Out? and and ADC for an encoder to act as volume control. ohh and DEBUG (UART or I2C or SPI) Start wondering if the STM32WBA has enough pins Is this correct? any Help thanks

Is it possible to disable a specific GPIO interrupt in my code and re-enable it after some time. HAL_NVIC_DisableIRQ(EXTI4_15_IRQn) this function will help but this will disable all the GPIO pins connected to that particular EXTI line. Any other possible ways I can implement?

Hello,I'm using ST25DV64KC NFC to communicate with Raspberry Pi 4 Model 4 over 12C. I would like to access static registers from I2C, and is a bit confused on I2C addressing. Looking the data sheet of ST25DV64KC, to access GPO register (System configuration area), the I2C address should be 0x AF as per following addressing scheme. Device Type :- b7-b4:- 1010 Chip Code   :- b3|b2|b1 :- E2|E1|1 - 111, E1 is 1for System Configuration Area, 0 for others.R/W      :- b0 :- 1 for R and 0 for W :- 1 as we are reading the register10101111=0xAF However, i2cdetect returns 53 and 57 as the i2c address as shown below  i2cdetect -y 1   0 1 2 3 4 5 6 7 8 9 a b c d e f00:             -- -- -- -- -- -- -- --10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -

As the subject mentions, I have a project in ST Visual Develop and I added the SPL files to the same location as the project. Once I add the files to the project and try to uncomment my specific stm8 it simply doesnt let me. I try editing the other files like the stm8_adc1.h file and I cannot edit it either. This is only when I add them to the project. How can I fix this?Thank you in advance.

I can fix the problem by enabling interrupts for the DMA channel. But WHY should this be necessary?I'd prefer to do this with no interrupts. I allow ample time between calls so data transfers have plenty of time to complete.(G4 chip, MX set up as SPI3 transmit only master with DMA on DMA2 channel1)Thanks!

Hello! I have a custom board with the st25r95 . I need to use it in emulation mode. But i dont find source code for this into X-CUBE-NFC3.Can you help me with this?

I have only one MMC, in this case it's an eMMC on SDMMC2. I have some issues when I loading over the TF-A and the FIP.bin file.Update:I have change the clock frequency to 49.5 MHz and measured the v3v3 signal to 3.3V and the vdd signal to 3.3V as well. I got still the same issue.  &sdmmc2{ pinctrl-names = "default", "opendrain", "sleep"; pinctrl-0 = <&sdmmc2_pins_mx>; pinctrl-1 = <&sdmmc2_opendrain_pins_mx>; pinctrl-2 = <&sdmmc2_sleep_pins_mx>; status = "okay"; /* USER CODE BEGIN sdmmc2 */ non-removable; no-sd; no-sdio; st,neg-edge; bus-width = <8>; vmmc-supply = <&v3v3>; vqmmc-supply = <&vdd>; mmc-ddr-3_3v; /* USER CODE END sdmmc2 */ };  This is the debug output. Here we can see that I have only one eMMC. I don't know if the log says that the eMMC is mounted on 0, or if it's the first index. Second suspect is "Loading Enviroment from nowhere... OK". So that means...what? An empty system?&nb

If STDES-CBMLoRaBLE module is not available for sale then can one evaluate all the features of this module?

Hi ST members,Where can I find the BSP components for the NOR flash with Part No: MT28EW01GABA?which is not in h7's bsp.If I want to create my own external loader, I need to add the MT28EW01GABA.c and MT28EW01GABA.h files to the project. However, I can't find these files anywhere. Can anyone advise on what to do?Thank you.Best regards,Jr_mbd_engr this example is given by st-employee which is for u5 with its flash ic only. 

I have a general question. I am using STM32F423 and STM32L407 Evaluation boards for practicing. So in both there boards they are using the debugger IC which is STM32F103CBT6.i.  Why are they using this IC and what exactly does this IC does in programming the main IC.?ii. Without this if we program, what will happen? and why can't we do that.?

Hello, This component, EMIF02-USB03F2, is listed as EOL. Do you have a direct/indirect replacement?Thanks, 

Does anyone have any details on register settings to get the S2-LP running from XIN rather that a crystal? The documentation is a bit thin in this area.

Dear ST employee,I came across the guide "How to implement and use your own external flash loader: An example using STM32U5A9J-DK" by ST's admin Laurids_PETERSEN.How to implement and use your own external flash loader - STMicroelectronics CommunityI have a custom board with an STM32H753BIT6 MCU and a 1Gbit parallel NOR flash (MT28EW01GABA). In the QSPI flash example, files like mx25um51245g.h and mx25um51245g.c are used. Where can I get similar files for my NOR flash(MT28EW01GABA.h and MT28EW01GABA.c)? Should I follow all the steps in the guide for my flash? Additionally, how do I implement this in TouchGFX?Could someone please guide me on the right path?Thank you.Best regards,Mbed_Engr

Hello,I’m trying to use the RTOS Kernel Awareness at my FreeRTOS, Makefile Project,but the ROTS Proxy throws following errors:STMicroelectronics RTOS Proxy. Version 0.14.0 Copyright (c) 2023, STMicroelectronics. All rights reserved. Loading RTOS driver... FreeRTOS Connecting to GDB server 127.0.0.1 on port 61234 ... Connected Listen for GDB connection on port: 60000 ... Connected Data structure member error: xLIST_ITEM Data structure member error: xLIST_ITEM Data structure member error: xLIST_ITEM Data structure member error: xLIST_ITEM Data structure member error: xLIST_ITEM Data structure member error: xLIST Data structure member error: xLIST Data structure member error: xLIST Data structure member error: xMINI_LIST_ITEM Data structure member error: xMINI_LIST_ITEM Data structure member error: xMINI_LIST_ITEM Data structure member error: tskTaskControlBlock Data structure member error: tskTaskControlBlock Data structure member error: tskTaskControlBlock Data structure member error:

I'm using an embedded hardware design based on the NUCLEO-H743ZI. Within the SMT32CubeIDE I configured all of the pins and set up the clock according to my PCB, I'm using an external LSE 32.768Khz and no external HSE. The PCB is set up to utilize VBUS sensing and ID pin, I set up the USB_OTG_FS in OTG/Dual_Role_Device with VBUS sensing. When I build and load the code on my STM I get no indication that the USB is functioning besides providing power to the PCB. What i'm expecting is to see the device accessible in REPL and it never shows up. When I change the USB_OTG_FS mode to Device_Only, which enables the Middleware USB_DEVICE option and set the class to Virtual Com Port the device has no issues making a USB connection. I noticed that in the configuration that doesn't work the code generated does not perform any function calls that include USB, only when i set it in Device_Only is when I see activity while debugging that has anything to do with USB. Is this intentional? Am I missing s

I can not find any complete project for USBX or TinyUsb library to drive. Can anyone to help me please?i need USB CDC VCP AND AUDIO DEVICE simultaneously in custom board.