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Hi,Im currently working on a project with an STM32L452 that uses a Temperature Compensated Crystal Oscillator (TCXO) as the Low-Speed External (LSE) clock source. The TCXO is responsible for clocking the RTC. To fully calibrate the TCXO, I have designed the hardware in such a way that I can fine-tune the input capacitance of the oscillation signal line using a trimmer capacitor.In order to adjust the trimmer capacitor properly, I need to measure the period duration of the signal. My plan is to use a frequency counter for this measurement. Specifically, I would like to connect the frequency counter to pin PB2, which can be configured as RTC_OUT. Unfortunately, I cannot use the default PC13 pin for this purpose due to other design constraints.According to the reference manual, enabling the RTC_OUT function on PB2 should simply require setting two bits: the COE bit in the RTC->CR register and the RTC_OUT_RMP bit in the RTC->OR register.Despite following these steps, Im not seeing an

Hi,Anybody from ST or Users done any development or research on the "new" relay node on the STM32WL.Will the stack be updated or will we have to do this on our own?RegardsStefan

On the STEL12H24, but am not sure about the calculation for Rbleed:I am designing a 12V system.RBLEED [kΩ] = VIN / 20 – Rb (min)Rb would be about 95Ω (from Figure 14 in the datasheet)That would make Rbleed 12/(20-95) = -160Ω (negative makes no sense)But according to Table 2, Rbleed is minimum of 560?Can you clarify this please?

Hi, I'm working on an OTA BLE bootloader for the STM32WB5MM module.I created from scratch with STM32CubeMX the same code as the OTA example for NUCLEO-WB55.I'm on BLE stack 1.21So far so good, I can update with the smartphone app.The problem I'm having is that at the end, after receiving the BLE reset in the OTA, the microcontroller reboots correctly in the customer firmware, but remains stuck at CPU2 initialization, when hci_reset() is called in the Ble_Hci_Gap_Gatt_Init() function.The power supply must be removed for CPU2 to work. After this action, the customer firmware is working properly.A reset via the RESET pin does not improve the situation.I found several similar messages about this:https://community.st.com/t5/stm32-mcus-wireless/issue-in-ble-stack-advertisement-after-jumping-with-bootloader/m-p/63165https://community.st.com/t5/stm32-mcus-wireless/stm32wb-cpu1-stuck-waiting-cpu2-at-init/td-p/80505https://community.st.com/t5/stm32-mcus-wireless/stm32wb5mmg-cpu2-stuck-in-non-dis

Hello, If I put my new machine conf and device tree in meta-st-stm32mp-addons I can compile device tree and my image without any error. But if I use my own layer meta-my-layer (in meta-st), machine config is used but I have this message : | make[2]: *** No rule to make target 'arch/arm/boot/dts/st/stm32mp153c-linux-platform-mx.dtb'. Stop. I read the forum and documentation but, I don't find a way to have a working project. Could you explain me how to create my own layer to be outside meta-st-stm32mp-addons  (to use my own git) and compile my new machine with associated device tree ?Thank you so much for your help

Hi, I am using UART3 and UART4 interrupts together in STM32G070RBT6TR processor and facing issues.I have inserted my service routines as below. /* USER CODE BEGIN USART3_4_IRQn 0 */ if((USART4->ISR & USART_ISR_TC_Msk) == USART_ISR_TC_Msk){ } if((USART3->ISR & USART_ISR_TC_Msk) == USART_ISR_TC_Msk){ } /* USER CODE END USART3_4_IRQn 0 */ It is possible that, both interrupts can occur any time. It may happen that, one interrupt (USART4) occur while other (USART3) is being served.At the end of service routine both interrupts are getting cleared (with below functions created by CubeMX) and may miss the one which occur later.HAL_UART_IRQHandler(&huart3);HAL_UART_IRQHandler(&huart4);Can you provide me some pointer how to handle this situation?Thanks in advance. BRNarendra

Hi everyone, I am currently trying to get a lsm6dsox to interface with a Nordic nRF52833 board using i2c communication. I am looking to read accelerometer/gyro values. I am able to write to the sensor but I am unable to read from the sensor without receiving a NMAK.  I am using the STEVAL-MKI217V1 adapter board to connect to my nRF52833. I have connected the VDD/VDDIO pins to VCC, my SCL/SDA pins to the pins I configured for i2c communication, I have connected CS to VDD, GND pins to GND, and SDO to ground.  This is my result from the Logic analyzer   This is my source code: Main.c: /* * Copyright (c) 2020 Yestin Sun * * SPDX-License-Identifier: Apache-2.0 */ #include <stdio.h> #include <zephyr/kernel.h> #include <zephyr/device.h> #include <zephyr/drivers/sensor.h> static inline float out_ev(struct sensor_value *val) { return (val->val1 + (float)val->val2 / 1000000); } static void fetch_and_display(const struct device *dev) { st

Hi,I've a board, now a nucleo-u575zi-q but i'm waiting for a custum boad based on same MCU. I need this serie for the low power functionalities. In next phase of project , in this board i need an ethernet port where run web and tcp server. I found some good examples about these features but are all based on different series of MCU. There are examples based on STM32F and H series, both have a specific set of pins to manage the ethernet connection defined as ETH block.  They use Azure or Freertos with or without Lwip in conjunction with Lan8742 component as physical interface. My question is: can i use the same eth components, hw and sw, also with STM32U5 series? The functionalities used in eth micro block can be replicated, are only gpio pins to configure?, in U series ? In this way i can start from examples already present or i need to change MCU to have eth port on board? Thanks

Hello everyone,I’m looking for recommendations on setting up an NFC system that meets the following requirements. I’m aiming to keep the project as cost-effective as possible, and I would like to utilize both NFC readers and chips. I’d appreciate any insights on suitable NFC reader types (e.g., NFC Type 4) as well as potential components or modules from STM32.NFC Reader Requirements:Anticollision System: The NFC reader must support anticollision to handle multiple tags being present in the field at once. This is essential for our use case, where multiple tags may need to be read simultaneously.Inductive Change Detection: I’m interested in whether the reader can detect inductive changes (though I suspect this might be challenging since only one antenna or line is connected to the reader at a time, especially with multiplexing). To work around this, I’m considering the possibility of periodically switching between antennas and continuously scanning.Mobile Compatibility: The NFC reader sh

Hello, I am implementing I2C slave device with STM32G431. Using DMA with HAL library, it works well as expected in normal situation. It normally get ready to receive runningHAL_I2C_Slave_Receive_DMA(&hi2c1, (uint8_t *)aRxBuffer, rx_length)and handles request atvoid HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *I2cHandle)If response is requested, response is set ready to send byHAL_I2C_Slave_Transmit_DMA(&hi2c1, (uint8_t *)aTxBuffer, tx_length) And in error cases, reset I2C by HAL_I2C_Init(&hi2c1), and ready to receive again by HAL_I2C_Slave_Receive_DMA. But I can't handle if the master want to read unexpectedly. Without previous command asking to prepare data to respond, the master (another STM32 board) starts read sequence,> HAL_I2C_Master_Receive(&hi2c1, 0xA1, aRxBuffer, 1, 1000);Both SDA & SCL go low after I2C address is sent from master and ACK, until the slave powered off. I guess that the slave is in clock stretching. Reading

I started using STM32CubeMX, Atollic TrueStudio and the ST-Link Utility about 7 years ago and just recently, downloaded the latest STM32CubeIDE which does it all. Since then I noticed there are no files in the Drivers and Middlewares subdirectories although the project folder in the IDE shows the files. Not that I would want to modify those files, but just curious as to why I don't see them outside of the IDE.

Modular Switch Board Features:-The ESP32-S3 acts as a master module to drive the STM32 G031K8 slave slots.Slave slots can be plugged into the switchboard frame.The master and slave communicate over the I2C bus.The master controls the I2C slave slots by sending commands over I2C frames.The master always remains powered on.Both the master and slaves are powered by a common 3.3V supply.Slaves are mobile and can be plugged in or unplugged from the slots.Commands are sent to the master via a BLE app when a slave is inserted into a slot to initiate communication over I2C.Problem Statement:-Sometimes, a slave gets stuck on the I2C line.The slave holds the I2C line low, causing clock stretching.The master becomes unable to communicate, even after being reset using a dedicated reset button.I have a screenshot from a logic analyzer showing that my first slave successfully commissioned and received the address 0x60(slave address). However, when I add a second slave(second slave address 0x01), the

Hi Gfx Team,Could you consider adding an option to build code without running.Thanks

Hi,I am testing the USB HS Device CDC implemented from the CDC example (so using ST middlewares) and I notice a strange behavior while reading transfers of 512B.Internally, the function CDC_Receive_HS  file Appli/Src/usb_cdc_if.c has been adapted for a simple loopback as follows: static int8_t CDC_Receive_HS(uint8_t* Buf, uint32_t *Len) { /* USER CODE BEGIN 11 */ USBD_CDC_SetRxBuffer(&hUsbDeviceHS, &Buf[0]); USBD_CDC_ReceivePacket(&hUsbDeviceHS); SCB_CleanDCache_by_Addr((uint32_t *)Buf, *Len); CDC_Transmit_HS(Buf, *Len); return (USBD_OK); /* USER CODE END 11 */ } So basically, my testing program, based on libusb v1.0.27.11936, consists of consecutive bulk transfers to EP  #0x01 (bulk writing to STM32  CDC device) and from EP #0x81 (bulk reading from STM32 CDC device) during a time interval of 1 second.It works fine except for bulk transfers of 512B: in this case, the test results in approx. 50% of zero length bulk reads (0 B of data) so resul

Hello everyone.I am encountering a very strange issue with the STM32H7B0 using the J-Link to debug.I followed this tutorial to control the WS28B12 LED using Timer, PWM and DMA.I use the following function to transmit the PWM data. if (HAL_TIM_PWM_Start_DMA(&htim1, TIM_CHANNEL_1, address, 74) != HAL_OK) Error_Handler(); But here comes the strange thing:If i run the code, nothing happens, or lets say, the data doesn't get transmitted:But if i look at value of the address variable in the debugger before running the ...Start_DMA...:And then Resume the program it suddenly works:Why does this happen?Any help is appreciated

Hi, I try to update the firmware of an STM32L431 with another microcontroller. I use a UART interface to do that. As described in AN3155 §1, I send the 0x7F after managing the Boot0 and reset pins, and I wait for the 0x79 (Ack). But the STM32 answer: 0x28 0x40 0x00 0x01 0x00 0x14 0x74 0x29. My questions are: 1- Why is this bytes sequence and not the 0x79 as defined in AN3155? 2- Why does it answer without even parity as defined in AN3155? 3- I do not find the real timing sequence for managing the Boot0 pin, but after several tries, the STM32 answers only if I set to 0 the Boot0 pin and after sents the 0x7F. Is it the right sequence? 4- Is even parity mandatory for all commands or not? 5- In AN2606 page 337, USART3 connectes to PC11 and PC10, but we use the LQFP48 package and those pin are not available. Is the update with USART3 possible? Thanks for your answer and your help Best regards.

Hello everyone,I have recently started working on a custom board which has a STM32H733VG as the MCU. various interfaces including UART, I2C, SPI and sdmmc has been implementde hardware wise to provide links between MCU and other chips on the board.I was able to write to an SD card however when i want to read or right from other chips (external RTC (ISL12057), GPS module(MAX-M10M), ...) using I2C or UART interfaces, i get nothing. I am using SEGGER J-link debugger and eveyhting seems fine expect this part while i am trying to debug: Downloading 4 bytes @ address 0x5C001004 - Verified OK Downloading 4 bytes @ address 0xE000EDFC - Verified OK Downloading 4 bytes @ address 0xE00400F0 - Verified OK Downloading 4 bytes @ address 0xE0040010 - Verified OK Downloading 4 bytes @ address 0xE0000FB0 - Verify failed (expected 0x55 read 0x00 @ 0xE0000FB0) Downloading 4 bytes @ address 0xE0000E80 - Verified OK Downloading 4 bytes @ address 0xE0000E40 - Verified OK Downloading 4 bytes @ addr

We are having an unusual issue where we are failing emissions at 67.8Mhz or the 5th harmonic of the NFC frequency.  We are also close to the limit for the 3rd and 4th harmonic as well.  It is unusual because it does not fail in all operating modes.  It is failing only when our sensors (devices being charged via NFC) are fully charged, so they are not "taking in" energy anymore.  The specific standard for which we are failing is CISPR11B (graph below).   Below is a schematic of our circuit for the ST25R3916: Below is a schematic of the matching circuit and PCB coil antenna: We are trying to understand why the failure only occurs when it appears that the sensors are no longer taking charge. Any help would be appreciated!    

I am having an issue adding a bitmap into my project, its ID doesn't seem to get added into the bitmap database, but in debugging this I noticed that there is a bunch of info from a bunch of bitmaps that got deleted from the project long ago.I go into images, hit +, point the file picker at my .png file, add it in, looks great, put in a screen, looks great. Generate code, compile the code, compiler can't resolve the symbol for the bitmap ID. Grr.Maybe I just don't understand how these files work, but they do say that I should not edit them since they are generated by imageconverter. I expect that the database is borked, but if I delete it, and generate code, that makes a bigger mess. Apparently there is a trick that I don't know.Okay, how do I fire up imageconverter so that my bitmap gets an ID and the old stuff gets deleted?(4.24.1)

An internal error occurred during: "Launching teste".Cannot invoke "org.eclipse.cdt.core.model.ICProject.getProject()" because the return value of "org.eclipse.cdt.debug.core.CDebugUtils.getCProject(org.eclipse.debug.core.ILaunchConfiguration)" is null

Hi!I am working with CubeProg 2.15 and a STM32H743XI. When using the register view window with peripheral ImpDef there is bug in the register addresses: ITCMCR is correctDTCMCR is correctAHBSCR 0xE000EF90 (0xE000EFA0 would be correct) -> content of ITCMCR is shown twiceCACR is correctAHBPCR is correctABFSR is correctIt would be nice if the registers could appear in increasing register address orderITCMCRDTCMCRAHBPCRCACRAHBSCRABFSRBest regardsGerald 

 Hi,How to shift X labels min/max ('0' and '100') to be fully visible ?   Thanks  

helloI need to interface about 20 small package inertial sensor via SPI and my MCU doesn't have enough GPIO for the chip selects so I'm looking for a module that can be daisy chained via SPI however I didn't find anything in the datasheets that indicate if these devices are compatible or how to do it.can anyone tell me if the LSM6DSOX is compatible or if not if there is a module with about the same capabilities that is compatible??best regards

Why its not letting me to erase the memory, what happened ?   -------------------------------------------------------------------STM32CubeProgrammer v2.19.0------------------------------------------------------------------- ST-LINK SN : 0029002A3033510335393935ST-LINK FW : V3J13M4Board : STM32N6570-DKVoltage : 3.29VSWD freq : 8000 KHzConnect mode: Hot PlugReset mode : Software resetDevice ID : 0x486Revision ID : Rev ZRevision ID : Rev ZDevice name : STM32N6xxDevice type : MCUDevice CPU : Cortex-M55BL Version : -- Opening and parsing file: fsbl_cut_2_0_sign.bin  Memory Programming ...File : fsbl_cut_2_0_sign.binSize : 46.69 KBAddress : 0x70000000   Erasing memory corresponding to sector 0:Erasing external memory sector 0Error: failed to erase memory  Error: failed to erase memory-------------------------------------------------------------------STM32CubeProgrammer v2.19.0---------------------------------------------------------

Hello,  I am using the STM32H573RIV6 for my project and would like to use the USB interface. However, according to the datasheet, the VDDUSB pin is not available for the VFQFPN68 package. Does this mean the USB feature is not available for the STM32H573RIV6? This is not specifically mentioned in the datasheet. Regards, Harsha