Others: STM32 MCUs related

Hi everyone, I'm trying to turn on or off readout protection on STM32f031G6U6 with openocd: I'm using this command :  openocd -f interface/cmsis-dap.cfg -f target/stm32f0x.cfg And as you can see i try to protect and unprotect them and it works, (i have open STM32cube programmer and it say flash protection active), but I don't understand the error below ... "fail to write memory at 0xfff..." > stm32f0x options_read 0 option byte register = 0xffffff00 write protection register = 0xffffffff read protection: off watchdog: software stop mode: no reset generated upon entry standby mode: no reset generated upon entry user data = 0xffff > stm32f0x lock 0 stm32x locked > stm32f0x options_read 0 option byte register = 0xffffff00 write protection register = 0xffffffff read protection: off watchdog: software stop mode: no reset generated upon entry standby mode: no reset generated upon entry user data = 0xffff > stm32f0x options_load 0 SWD DPIDR 0x0bb11477 Failed to write mem

Hi all,has anyone here benn able to debug this NUCLEO board with OpenOCD on Linux? I pulled and compiled the latest sources from ST's github and can't seem to get past this error:"Error: The selected transport doesn't support this target"this is my config file:source [find interface/stlink.cfg]transport select hla_swdsource [find target/stm32h5x.cfg]reset_config srst_only

I'm currently experimenting with an XM125 radar board . As seen on page 15 of the module's datasheet, this board essentially contains an STM32L4 MCU with the necessary external components and the radar sensor. All pins of the MCU are exposed through the board. So, essentially, I'm connecting directly to the STM32L4.My ProblemI'm struggling with flashing something to the controller. I know this has been asked (and solved) a thousand times, but I simply cannot find the problem here.When attempting to flash a default project by the manufacturer using an ST-Link V2 (genuine, not clone), I get the following output in STM32CubeIDE 1.17.0:STMicroelectronics ST-LINK GDB server. Version 7.9.0Copyright (c) 2024, STMicroelectronics. All rights reserved.Starting server with the following options: Persistent Mode : Disabled Logging Level : 1 Listen Port Number : 61234 Status Refresh Delay : 15s Verbose Mode : Disabled SWD Debug : Enabled InitWhile : EnabledTarget no device foundError in initializin

Hi i am using Nucleo F207ZG EVK and i wanted to Make use of the Segger System view Tool1. While using system view tool i have added the required files to the existing project but still some errors are occurred while running2. I have attached image please go through this and let me know is there any ref doc for the Segger System View Tool with STM32 3. The code is without FreeRTOS4. Let me know is there any other settings to be added or ref example5. i Have included the paths in the compiler settings alsoErrors C:/ST/STM32CubeIDE_1.16.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.12.3.rel1.win32_1.1.0.202410251130/tools/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: ./Core/Src/SEGGER_SYSVIEW.o: in function `_TrySendOverflowPacket':D:/Projects/Internal Project/Stm32_Firmware/STMF207ZG_Limit_Switch/Debug/../Core/Src/SEGGER_SYSVIEW.c:664: undefined reference to `SEGGER_RTT_ASM_WriteSkipNoLock'C:/ST/STM32CubeIDE_1

Hello, Can someone tell me me how to force 10 Mbps Full Duplex mode of the LAN8742 Phy with an STM32F767.So far I tried pull up/down resistors on MODE[2:0] pins , and also delete all 100 Mbps modes in ANAR register. But no luck so far. I'm able to get it advertised as 10 Mbps Full Duplex in Windows but ping is not working... picture below

Hi, in one of my project, i use STM32F070CBT6 and NEO-6M gps module. My problem is about activating the gps. My device's GPS module is sometimes(rarely) active when i energize my device. Module uses UART to communicate. In my software, i did not specifically write any code to activate GPS module. I am not sure if i have to enable the GPS signals in some part of my software. Can anybody lead me a correct path to use my GPS module effectively?

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

Dear Community,I am currently working on a project involving LoRaWAN and using the STM32F407 MCU. However, most of the available sources and example implementations I have found seem to support different STM32 models.I would greatly appreciate any guidance on:LoRaWAN stack support for STM32F407Example projects or reference implementations compatible with this MCUAny best practices or recommendations for integrating LoRaWAN with STM32F407If anyone has experience with this setup or can point me to relevant resources, I would be extremely grateful for your insights.Best regards,Sandeep S

Does STM currently have a guideline or recommendation(s) for handling the 2038 problem?

Hey, I am working on Xbee with stm32, and I am getting a big problem while connection.  I am using two Xbee's one is configured as a standard router which is connected to UART1 of the stm32 controller and the other is configured as a coordinator which is connected to the com port of another system through RS485 cable to XCTU. I have to use them in API mode. I have configured both of them in API Mode, now I am able to send API data frame from router to coordinator , but I cant receive API frame from coordinator to router ?  When I send a simple API frame from the coordinator to the router, the router Xbee sends an acknowledgment frame back to the coordinator, but my controller does not receive any frame, I have written the code to receive the complete frame at once using the polling method as well as interrupt method as well as to fetch the data in single-byte also. But it's not working. Data is received up to Xbee but the controller does not receive anything. It stops th

Hi everyone, I am currently working with an STM32F746G Discovery board and trying to export a Crank Storyboard project to STM32CubeIDE. So far, I have only been able to import the .h file generated by Crank, but I haven’t been able to generate the corresponding .c files or properly integrate everything into my STM32 project. Has anyone worked with Crank Storyboard on STM32 before? I would really appreciate any guidance on the correct export settings and how to integrate the generated files into STM32CubeIDE. Thanks in advance for any help!

I would like to request assistance regarding an integration issue between my microcontroller(STM32L051C8T6) and the SIM Y7080E (an NB-IoT connectivity chip being used to publish messages via MQTT). I am using an STM32L0 to control the SIM via UART, but for some reason, when I use the functions I wrote in a library to manage message transmission, the device responds that the message was successfully published to the MQTT broker. However, I cannot see the message using MQTT Explorer. On the other hand, if I follow the same routine using commands by directly transmitting string content to the SIM via UART, the message gets published. Still, this doesn't always work either. The difference is that in the first case, I concatenate strings and build the entire command body with the necessary information. In the second case, I assume the information is immutable and predefine it in the variable declaration for each command in the process. I have reviewed all the documentation provided by the S

Is it possible for BissC absolute encoder to communicate with STM32F401Re via SPI? Or can it be with MAX485 module as in the ardunio example in the link below?    https://protonestiot.medium.com/communication-between-24-bit-rotary-encoder-working-with-biss-ssi-and-arduino-1a85c64b7262

Hi I am having some trouble adjusting the brightness for the STM32F7.I used this in main.c, and externed it I tried using this in model.cpp and in main.c, neither seems to adjust the brightness of the display. void setDutyCycle(float duty_cycle) { if (duty_cycle > 100) duty_cycle = 100; if (duty_cycle < 0 ) duty_cycle = 0; float pw_resolution = (((float)99 + 1.0f) / 100.0f); uint16_t pw_desired = pw_resolution * duty_cycle; __HAL_TIM_SET_COMPARE( &htim2, TIM_CHANNEL_3, pw_desired ); } Code formatting applied - please see How to insert source code for future reference 

Hi all,I'm not able to connect Simulink to the model running on the Nucleo-G491RE board using the "Monitor&Tune" mode via Simulink XCP protocol -> Virtual COM Port -> STLINK-V3E -> VCP LPUART1.I can deploy the model itself successfully to the board (Simulink: Build&Deploy). The model just contains a pulse generator driving the user LED on the board, which works.In the attachment, I have prepared the Simulink model, the *.ioc CubeMX project file and the output of the Simulink diagnostic viewer after running the "Monitor&Tune" mode.The jumpers on the board are configured to use LPUART1 between the STLINK-V3E and the MCU (default):LPUART1 (PA2/PA3) connected to STLINK-V3E Virtual COM port:SB17, SB23: ONSB18, SB22, SB12, SB20: OFFUSART1 (PC4/PC5) connected to ARDUINO® (D1 & D0) and ST morpho connector (CN10 pin 35 & 37).SB13, SB19: ONSB12, SB20, SB18, SB22: OFFI followed an example from Mathworks called "Code Verification and Validation with PIL for STMicroelec

Hello,We are in the process of migrating our current BMS from an old MCU to a new one. and we want to check if ST has a suitable MCU for our use case:1) The MCU will manage up to 100 battery monitoring chips connected in daisy chain (isolated SPI)2) Enough RAM and speed to run moderately complex SoX algorithms while being able to keep very low latencies2) The MCU can be rated SIL 33) The MCU most obviously have multiple SPI, I2C channels as well as at least two CAN channels and an Ethernet channel4) The MCU must enable encryption/decryption operations and other cyber security mechanisms5) Able to Implement internal fault checks and auto diagnostics and redundancy mechanisms6) Have extensive dev material: example projects, application notes and be well supported by the community7) Having examples of up and running RTOS instances and also secure bootloader examples is a very nice to have8) While being cost efficientI understand an MCU fitting all these requirements is a very hard th

I want to read a data from a register in a network IC using RFFE protocol. I need a complete code for that. I am planning to use STM32F103C8T6.

Dear ST community,I want to send some data (like an integer or a decimal number) from Labview to the STM32 Nucleo F401RE board for motor speed controlling application. I have tried using NI DAQ (using digital output pins) and NI VISA. i am finding it difficult to get the output. what are the steps to be taken ?  Regards,Shruthi

Hi there!I still work on my project for read Ibutton. In the main i check every 500ms if there is any key(unfortunally i can’t use interrupt) . Now i want use a W2812B for report some error. Soo my question is how I can implement one function work in back ground for example turn on and off led every second without give a error with function check the presence of the key ? I saw freerots but i think is too much for this project. Because my worry is how mange the timer dosen’t stay in the error function and stop to check the keyThank you so muchSergio 

Hello, Can STM32F103ZET6 be embedded with MicroPython? How to implant? *This post has been translated from Chinese to comply with the ST Community guidelines.

Hi there!i start to work with Dallas Ibutton and for my project i use STM32G031K8 nucleo. Because i need to read only one ibutton i use the UART peripheral and no ic dedicate for 1Wire. My problem is when i try to  use the rx callback function for know when i receive all data (and i start wit  receive one bit at the time) never shoot, If i put a simple delay of 1ms everythingh wor very well i can see all my data on my logic analyzer .Question because the nucleo use the second uart2 for debug is possible that give me the problem ? and if yes how can i resolve ?Thank you soo much Sergio

I'm trying to control LED's through a (TI) TLC5947 Driver. All the examples I can find are using a library by Adafruit, bitbanging GPIO's to communicate with the chip. I'm just using the two chips on a custom board and would like to use SPI due to its speed (and control). I can toggle the driver's blank & latch just fine, but I'm having trouble understanding the Serial part of the communication. Right now I'm sending 12 bits (0xFFF) 24 times, then toggling the latch, but this is clearly wrong because some LEDs are on (very dim) and others are off. If someone could provide me with some quick example code using SPI using the STM32 HAL, or point me towards a guide for sending this non-conventional way of SPI.

Hi All,I want to know what is maximum function depth supported by STM32F417 in stmcube ide?how function depth managed by stack pointer? 

Hi everyone,I am currently working on running the USB HS examples (USB_Host_Device_Examples - dual role device) provided in the user manual for the OPEN405R-C. My goal is to use the board to read files (e.g., .txt, .png) from a USB drive.Setup Details:Development Tools: Code loaded using Keil uVision and ST-Link V2.Hardware: OPEN405R-C connected to a WaveShare USB3300 via the ULPI interface.Configuration: System set to USB host mode.Issue:The board fails to detect or read files from the USB drive. I have tested the setup with three different USB drives, including a 16GB Kingston DT100G3 (USB 2.0 compatible). Based on the USB3300 datasheet, the configuration should support high-speed mode and meet the project requirements.Despite multiple attempts and different USB drives, the system still does not recognize any of them. I’ve attached some image of my project setup for reference (apologies for the poor quality).Request:Has anyone encountered a similar issue or have suggestions on how to

Hi, @mƎALLEm  @PGump.1 @When reading the FIFO buffer through I2C read command, we typically retrieve 6 bytes of data: 3 bytes for the Red LED value and 3 bytes for the IR LED value.The question is: how is the data arranged in the 6-byte buffer?Is it organized such that bytes 0 to 2 represent the Red LED data, and bytes 3 to 5 represent the IR LED data?I also noticed that some  MAX30102 firmware driver using bytes 0 to 2 represent the raw IR LED data, 3 to 5 represent LED raw data and vice versa.I'm a bit confused about how the data is arranged when reading multiple bytes. Could you clarify the orientation of the data in the buffer? void MAX301ReadFifoNew(void) { uint32_t irBuff[32]; uint32_t redBuff[32]; // Get 32 samples of data for (int8_t i = 0; i < 32; i++) { uint8_t address; uint8_t buf[6]; uint8_t numBytes = 6; // Buffer for IR (3 bytes) + RED (3 bytes) I2C_HandleTypeDef i2cHandle = GetI2cHandle(MAX301_I2C_NUM); buf[0]