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Hi allI'm configuring STM32U5A5VJT to work with the USB HS crystaless. From the Cube it seems to be possibile to use one of the integrated oscillators as clock source for the USB HS but this is not mentioned in the datasheet.I'm afraid that it could work but not in all the situations such as with high and low temperature.Moreover in the STM32L4 I can use the 32768 crystal as calibrator for the internal oscillator that feeds the USB clock but in this case we are in USB FS while for U5 it's USB HSMy question is: Is the HSE crystal mandatory for USB HS?

Hello,I'm looking the vector table described in the Table 97 of the STM32G4 series reference manual, and it shows interrupts with different characteristics, such as TIM1_BRK/TIM15 and TIM6_DACUNDER, being allocated to the same address. This is very confusing to me because I first thought TIM1 and TIM15 have something to do with a master/slave relation, but it was not.My question is why are these confusing definitions happen. Is that due to the hardware constraints of the Cortex core?Thanks,macalon 

I having trouble getting the correct CAN timing configured with default 96Mhz System Clock on the NUCLEO-F412ZG eval board. I need a 250kbit/s baud rate. Here is what I have so far. The system clock setup is below.  

Hello,Newbie here, need help getting printf() to write to USART2.Using IDE : IAR EW for ARM 9.50.1Board: NUCLEO-F401REExample Project:The example project is called UART_Printf. Here is a screen shot of the directoryThis example code can be found here: https://www.st.com/en/embedded-software/stm32cubef4.htmlThe example code seems to run fine except the printf() output goes to the Terminal I/O window in the IDE. Not out the UART or Virtual USB com port. I want printf() to send data out USART2. And if it did,  think I would also see the data on the Virtual USB Com Port too. In device manager I do get this: So that is a good sign. And I do see that USART2 has been configured: But when I run the code, the Data Register on USART2 is never written to. I set a break point on a data write to 0x04000'4404 (the DR register) and it never gets written to. I also put a scope on the USART_TX signal (pin 16, PA2 of the MCU) and it is not active. But as I said. Printf

Hello,I setup a USB virtual com port which I use for serial comm.  My design has 2 boards; a panel-board and main-board.  The main-board has an STM32F373 with a USB-C connector as well as ESD321DYAR diodes for DM and DP USB line protection.The main-board can be used on its own, but can also be optionally connected into the panel-board ( a front panel ).  For convenience, I would like the panel-board to also have a USB C connector so that the user can plug a USB cable into the front panel instead of the main-board.  Both USB C connectors lead to the same USB virtual com port on the main board.I would like to add ESD321 protection close to both connectors, but noticed having 2 ESD on the DM/DP lines instead of 1 ESD resulted in failed USB communiation.  I'm assuming the 1.4V drop ( instead of 0.7V ) caused by the diodes is too much and causing the failed comm.  What is the best way to ESD protect both connectors?  I currently only have ESD dio

I am trying to make a precise delayed pulse for my project that does not use interrupts. I plant to use TIM1 or TIM8 on a STM32H7A3 using the TI2FP2 input to trigger and reset the counter in one-pulse mode.  I tried the method describe in website.  Controllerstech.com  https://controllerstech.com/stm32-timers-9-one-pulse-mode/   This worked as expected when a switch to the +3.3 V line was used as a trigger. When I connected to a open-collector LVTTL  output the trigger pulse disapeared.  It turned out the  electrical impedance was extremely low. after HAL_TIM_OnePulse_Start(&htim8,TIM_CHANNEL_1); was executed.I measured the current from the +3.3 V line to the TI2FP2 input (PE7) to be 102 mA. I would expect this to be max a few microamps.STM32 Timers #9. One Pulse Mode || Retriggerable OPMThe problem was reproduced for TIM1 and TIM15 on the same board and also TIM1 on a STM32L476 board - so it seems to be a problem with the HAL.My questions:(i

There's no forum to report bugs on main st.com site.Breadcrumbs appear briefly when scrolling, but then they are overlapped by the "stuff" on top.The "modern" webdesign is a disaster.JW

Hi,Urgently need help with STM32. I'm taking over a stm32 board that I'm not familiar with. I have a mechanical engineering background with no hardware experience. The stm is essentially used to power solenoid actuated braking system as well as to record motor encoder information when the motor is running. The current issue im running into is that the computer is unable to initialize the st-link device. I have tried a bunch of things that the internet has suggested to use the stmcubeprogrammer or use the st-link utility software, none have worked so far as seen in the image shown. The physical COM led was normally green, but as of now it is now red. Any advice would be appreciated. PS: I tried to power on boot0, might have fried it lol, cannot get any amp readings now.

This is one that baffles me:I set up Timer 8, and everything haasworking perfect. Then i did set up interrupt on some pins, and then the PWM signal on timer 8 stopped working.This is what i did, so the Timer 8 stopped working:Edit: Only with the pull UP resistor the problem does not appear.      my_GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2; my_GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING; my_GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOC, &my_GPIO_InitStruct);     This is how i setup Timer 8:      // **************** PWM ********************* // PC6-8 // PC10-12 my_GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12; my_GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; my_GPIO_InitStruct.Pull = GPIO_NOPULL; my_GPIO_InitStruct.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(GPIOC, &my_GPIO_InitS

Hi  I have an STM32L433CBT processor and created a project using STM32 IDE version 1.14. I created the project on STM32 MX version 6.9.1 .  The project works in debug and I created a release version , but the elf file is far too large. I have the following running in the post build steps:arm-none-eabi-objcopy -S -O binary "Project.elf" "Project.bin" then use the bin file to program the chip out in the field. For some reason the elf file generated in release is 232KB, and the converted bin is 131,073KB.   Compared to previous larger projects where the elf is size 176KB and converted bin is 68KB. When I build the application I get the following in the console:arm-none-eabi-gcc -o "Project.elf" @"objects.list" -mcpu=cortex-m4 -T"D:\Work\air\STM32\Project\STM32L433CBTX_FLASH.ld" --specs=nosys.specs -Wl,-Map="Project.map" -Wl,--gc-sections -static -u _printf_float --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -u _printf_float -Wl,--start-group -

All: I have connected internal temperature to ADC3, and I am able to display degrees C on "Live Expressions".  The particular chip we are working with has an operating range of -40 C to + 85 C. If I am monitoring the internal temperature on a regular basis (once per second), is there a temperature that would be good for fault condition? I am assuming I do not want to fault at 85 C, but is there a temperature that people have generally used as a condition to fault? (Is 75 C a good temperature to raise an alarm?) By the way, my Nucleo board generally runs at 30 C, after starting at roughly 26 C when first powered. Regards, Todd Anderson

I have flashed my own program on the EVAL board.But I cannot find the an STM32CubeIDE project which ST provided as the factory default.Can you please provide the location for the same or a zip file ? 

Hello?As title, at STM32H750, when will be fix to use termperature sensor/vbat/vref? In version 1.15, all checkboxes were cleared. Due to migration, the lower version couldn't even read it, so I reset it from the beginning.And then, it seems that the bug where garbage values of live expressions are displayed is still the same. If I don't write a random value to a random variable, an error that is not displayed normally will remain.Please review.

Trying to find details about this chip. New to this and trying to follow tips to fix a car. This chip i was told was going to be a 93xxx series eeprom but as you can see its not. I cant find anything on it looking up the part number unless im missing something. I need to read the code and change a serial number on it. I understand the process for the 93xxx eeproms to read and write on it but without any info on this one I'm not sure if its even a eeprom or if I'm wasting my time. Any tips would be appreciated. 

Searching "st-link_cli" gives 137 results. Searching "st-link_cli linux" gives 4000 hits. "https://community.st.com/t5/community-guidelines/how-to-search/ta-p/575262" does not give a hint how to search for hits with hit for multiple keywords together. This is not helpful!

Dear all,I have the STM32F469 discovery kit which is working. I want to use the STM32F469 to drive a 4" tft lcd screen using its 31 pin mipi connector. The goal is to get a gauge displayed on it, I was thinking of using LVGL to design the GUI.I have a hard time getting started with this and was wondering if anyone has a good tutorial to get started?Many thanks

Hello,I was wondering why a 1K resistor is connected in series with the VSPI pin of the EV-VNF1048F.The pin has a current consumption of 3mA. So does that make a drop of 3V ?

Hi all, I am fairly new in using STM32CubeIDE. I am working with three peripherals (uart1, uart2 and CAN) as also a timer interrupt in the STM32F103C8. I have written all the code in the main.c file. It is working but the coding is a bit jumbled up. For better readability, I want to put different functions of the three peripherals and the timer in different source files and call them from the main function. I am adding new c source files in the src folder but I have trouble in accessing the functions placed in these files from the main.c file. Can anybody please guide me in this matter?

Hello,I updated my stm32 project because I had problem on the older version. So I updated the Time.ioc by migrating version...  ...but when I open the system clock configuration I see that it's not the same configuration for "To Ethernet PTP". For information I'm working on a STM32F769BGT6.Old version : New version :  Id'like to know if it is normal or not, and if I can change it to have the same configuration as the old version ? Thanks

Dear all,on a custom board based on STM32MP157D I successfully managed to configure an LCD display that works perfectly using "modetest -s" and "psplash-drm". But I cannot run the examples in the st-example-image-qt because I always get the same error: # /usr/share/examples/opengl/hellowindow/hellowindowQEGLPlatformContext: Failed to create context: 3005and nothing is shown on the display. Here is the my /usr/share/qt5/cursor.json:{ "device": "/dev/dri/card0", "hwcursor": false, "pbuffers": false, "outputs": [ { "name": "DPI-1", "mode": "640x480", "touchDevice": "/dev/input/event0" } ]} Attached you can find also some verbose logs that could help troubleshooting:- modetest.txt: output of the command "modetest -Mstm"- verbose-hellowindow.txt: output of the command "hellowindow" after setting verbose QPA logs- dmesg.txt: dmesg output running "psplash-drm" and "hellowindow" Do you have any hint?Thank you!  

Hi! I have a code that is supposed to develop CAN-bus communication, but these two functions go straight to error handler. Any suggestions why that might be? for reference I'm using the nucle-l433rc-p board.  

Hello Everyone,I am facing problem in ADC section of  our project schematic. We are using ADS8505 Analog to digital converter as the output of ADC ranges from 0v to 5V and microcontroller which we are using(STM32F413ZGT6) is connected to 3.3 Volts supply voltage we had to incorporate a Low voltage CMOS buffer in between i.e. (74LCX541/SO).There aren't enough test circuit example available on internet for (74LCX541/SO).Please suggest how can we incorporate (74LCX541/SO) with STM32F413ZGT6 microcontroller.Also attaching existing schematic for your reference.

Hi,I have purchased a sensor expansion board (X-NUCLEO-IKS4A1) for my board (NUCLEO - F446ZE). However, when I wanted to display the data on Unicleo-GUI, the GUI cannot detect anything, not even my firmware. I looked through the datasheet for Unicleo-GUI and I did not see IKS4A1 being a supported model for the GUI. Could this be the issue? In terms of setting up the board, I basically followed "Getting started with X-CUBE-MEMS1 with STM32CubeMX" document, specifically the steps under section 7.2 --"Use of MEMS Library with sample applications for X-NUCLEO-IKS01A3 or X-NUCLEO-IKS02A1 or X-NUCLEO-IKS4A1". Am I following the wrong step?Best.

hi . I am trying to use a display lcd using parallel rgb (LTDC RGB888) with STM32h747XIH on a special board.STM32CUBE-IDE v1.14.0Touchgfx Designer  v4.22.1STM32Cube_FW_H7_V1.11.1My project creation steps are as follows :1-Stm32 project creation2-RCC Setting HSE & LSE3- I open the LTDC unit and select "Display type RGB888(24 bits)". DSIHOST is automatically checked but DSIHOST Disable is selected.if I try to remove the DSI host tick, CubeIde Message "DSIHOST, LTDC are linked,both configurations will be lost would you like to continue anyway ?" and  4-Middleware and Software Packs -> X-CUBE-TOUCHGFX -> Graphics Aplication checked 5 -Middleware and Software Packs -> FreeRtos -CMSIS_v26- Save and generate code7-Touchgfx->ApplicationTemplate.touchgfx.part duble click and touchgfx designer opening .click Generate codeand fail :  Post Generate Targettouchgfx update_projectUnable to locate C:/Users/sinan/STM32CubeIDE/workspace_1.14.0/sdsd/.cpr

Hi!I'm having some troubles in configuring the I2C bus on my STM32H747 evaluation board.I've configured it in CubeMX as in the image below, using DMA buffer (rx and tx). Gpio pins are configured as open drain (no pull) and hardware is ok.It seems like the peripheral is not correctly initialized because I can't see any toggle of SCL pin on my scope (both SCL and SDA go low during initialization but, after that, they don't move anymore).Can someone help me please?Thanks