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(Sorry, I am not a pro and the Google search AI is braindead.)I am just nerding out over FERDS at the moment and want to build a SMPS using them. 

Hi, I cannot manage to receive the bytes on UART protocol on an STM32U0 when using the STLINK-V3MINIE.The RX works properly (I can send data to the PC), so the pins are not swapped. The Vref of STLINK is 3V3, and the STLINK measures it correctly. Moreover, I can successfully program the U0 using the STLINK so I think both devices are in good shape.The UART baud rate is 115200 b/s. I have attached an oscilloscope to observe the signal. When NOT connected to the MCU, the TX signal is clear as expected (0V as low and 3V3 as high). If I connect it the MCU, the signal is still very clear and sharp but reduced (the "low" level is about 1.65V and the high level is 3V3). The schematic is the most straightforward: no components between the STLINK and the MCU.The firmware on STLINK is the V3J17M10.Currently, I have solved it using another USB-serial converter (CP2102) and it works flawlessly in both directions, using interrupts, DMA and whatever firmware tricks, but I would unders

Hi,I have developed an application for the STM32C562RET microcontroller that wakes up from standby mode, initially based on an example provided by ST. The non-FreeRTOS version of this application works fine (though there is a minor wake-up issue that is fixable). Subsequently, I created a FreeRTOS version of the same application that starts a task, and when the user presses a button, the vTaskEndScheduler() function is called to terminate FreeRTOS, which in turn calls void vPortEndScheduler(void) where the wake-up code is implemented. void vPortEndScheduler(void) { HAL_RTC_WAKEUP_Start(HAL_RTC_WAKEUP_IT_ENABLE); LL_PWR_ClearFlag_SB(); HAL_PWR_EnterStandbyMode(); } Despite the fact that FreeRTOS is no longer running, the MCU goes to standby and wakes up immediately.Do you have any suggestions on how to make this work?Thanks,-Gil 

 Hi~ My board gets stuck at the kernel stage during boot. I've referred to numerous related posts but failed to resolve the issue.The boot file versions I use are OP-TEE 4.0, U-Boot 2023.10 and Linux 6.6.116.The official device tree I referenced is stm32mp157f-ed1.I have attached the boot logs, hardware schematic and device tree files. Please help analyze the root cause of the problem.   stm32f7-i2c i2c@5c002000: pinctrl_select_state_full: pinctrl_config_one: err=-19​    [ 1.741795] arm-scmi firmware:scmi: SCMI Protocol v2.0 'ST:' Firmware version 0x0 [ 1.748959] DEBUG: SCMI CLOCK PROBE STARTED! sdev name: scmi_dev.2 I/TC: SCMI-CLOCK: Reporting 34 clocks to Linux I/TC: SCMI-FW: ETZPC ID 2 DENIED for Non-Secure world! I/TC: SCMI-MSG: NS Request Clock ID 15 (iwdg1), ETZPC 2, Access=FAIL I/TC: SCMI-CLK: ID 15 has no name/not found I/TC: SCMI-FW: ETZPC ID 7 DENIED for Non-Secure world! I/TC: SCMI-MSG: NS Request Clock ID 16 (rng1_k), ETZPC 7, Access=

Hi, I have bought STM32H743VGT6 and want to make bootloader and application. The issue is that its memory layout is confusing. In documentation and generated application I see/assume flash memory is:0x8000000 size 0x80000 (512kb bank1?) // bootloader 0x8100000 size 0x80000 (512kb bank2?) // applicationBut when I try to write to 0x8100000 I get "Error occured during memory writing!". Instead I can write to0x8000000 size 0x100000 (1024kb)Does this mean I have only Bank1, but no Bank2? Can I still do bootloader which is on Bank1 and writes to flash on same Bank in different sector? How can it be that I have only one Bank?..

Hi all,Hoping this is this right subsection to post the following question...I'm reading the STPD01 datasheet and it states its available I2C addresses : 4, 5, 6, and 7.Reading to general I2C documentation, it seems that these addresses are reserved to I2C HS-Mode. So, is STPD01 an HS-Mode controller or a regular (100kHz) device? Links:- https://www.ti.com/content/dam/videos/external-videos/en-us/8/3816841626001/6241024036001.mp4/subassets/adcs-introduction-to-i2c-reserved-addresses-presentation.pdf- https://i2cdevices.org/addresses- https://en.wikipedia.org/wiki/I2C- https://learn.adafruit.com/i2c-addresses/the-list

Hello,I am working on a custom FOC Inverter Board.  I am trying to assign the pins for current sensing, but I keep getting warnings.  I am using an STM32G431CBT6 MCU, and I completed all the other pin assignments without issue.  Here is the Current Sensing information:"Three Shunt AmplifiedCurrents using External Op-Amps"CURRENT_AMPL_U -> Assigned to PB14 ADC1_IN5CURRENT_AMPL_V -> Assigned to PB12 ADC1_IN11CURRENT_AMPL_W -> Assigned to PB11 ADC12_IN14It looks OK in the board designer application with no warnings, but when I try to generate the project in Motor Control Workbench, it gives me the following errors: I cannot find any documentation on the list of warnings/errors.  How do I correct this?  Or can it be ignored?

Hi,I already tried to search for previous threads that could help me (like this one), sadly without success.I'm currently studying the ADC peripheral on STM32F3DISCOVERY from the reference manual. I started writing a simple program to measure a tension on PA0. It all works flawlessly until the ADC samples the value on PA0, stores it in the Data Register and raises EOC. From the manual:"The ADC sets the EOC flag as soon as a new regular conversion data is available in theADCx_DR register. An interrupt can be generated if bit EOCIE is set. EOC flag is cleared bythe software either by writing 1 to it or by reading ADCx_DR." (page 347, Section 15.3.23).The loop part of my code is the following (I already configured the ADC for single conversion mode, L[3:0] = 0000, DIFSEL=0 and so on... to rule out any problem with configuration):unsigned int ADC_value = 0; while(1){ ADC1->CR |= ADSTART; //wait for EOC=1 while((ADC1->ISR&EOC) != EOC); //Data register read ADC_value = (ADC1

  Hello everyone, I am new to STM32 development and I am working with the STM32H7A3ZIT6 microcontroller. I need to interface it with a BiSS-C encoder/sensor. I would like to know: Is there any ready-made or full BiSS-C communication library available for STM32? Does STM32CubeMX / HAL provide any support for BiSS-C? If no full library is available, what is the recommended way to implement BiSS-C on STM32H7A3ZIT6? Can BiSS-C be implemented using SPI, timer, DMA, or GPIO bit-banging on this MCU? Any example code, application note, or guidance would be very helpful. Thank you.

If I have only 5V input. what to do with the FB pin?

Is there a standard list of SB's? I cannot for the life of me figure out the SB's on the STM32F723E-DISCO, and none of the manuals mention anything about them other than if open is on or off. I am specifically trying to use the debugger for my custom PCB based off the same MCU. Any help would be greatly appreciated!

Hello Everyone,During the operation of my program, there will be an issue of address inversion on stm32f030c8.It occurs approximately every 4 hours, and then it transitions to a "hard fault".For example, I was trying to read from address 0x20000940, the register R0 returns 0x20400940, 1 bit was flipped, and it is out of the range of ram address(0x20000000-0x20002000), runs into hardfault in the end.I measured the surface temperature of the chip, and when the problem occurred, the surface temperature of the chip was 65 degrees.I suspect it's a problem caused by excessive temperature, so I used a fan to blow on it. It has been running for a whole day and is still functioning normally.The vcc of the MCU is 3.3V. I used external crystal oscillator 8M, the PLL  Clock is 48MHZ, configuration like follow:    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;/** 使用外部晶振（8mhz） */    RCC_OscInitStruct.HSEState= RCC_HSE_ON;/** 打开高速外部时钟 */    RCC_OscI

Above image you can see in toolchain option STM32IDE is disable . also i am facimng issure i =n import examples which stm32 provided for reference . you can also refer my shared video.

Hello ST team,we are trying to evaluate the simple GPIO pinouts on STM32N6 Nucelo & in our custom board,we noticed that Port P & O pinouts are not functioning as expected. we just configured as simple GPIO output and tested the pin state always low. other GPIO ports look normal, but we will come to know when we do the complete testing. We've cross checked this Port P &O functionality in the Nucleo EVK as well in custom board, but No luck, it is not working in both, could you please suggest, is there any special configurations required to make port P& O functional?Regards,Madhu S

I am working on an STM32 based robot controller using an STM32F4 series board. The system includes IMU, encoders, and multiple sensor modules. During vibration and movement, some jumper connections become unreliable. I am currently using standard Dupont wires for prototyping. However, repeated disconnects are causing unstable sensor readings. I want to move to more robust connector solutions for PCB to wire interfaces.I am confused about which connector types are best for pin based headers. Should I use JST, Molex, or locking header connectors instead of Dupont? What connector systems are commonly used in STM32 embedded designs?I also need something suitable for frequent assembly and maintenance.

For two days the Sidekick refuses to open.  Is it anything on my side?Windows 11, Edge browser. Everything else looks ok.--- >  

Just for fun...i tried to use the SPI on H743 by direct setting and writing to registers:- i never got it working on some attempts years ago, so just used HAL , which just works.- now i tried again: cannot be, its so difficult...- ok, its a over complicated construction....old SPI on F303 works instantly and fast, no problem there.- but now have AI ... can it help?So i tried Sidekick, it should be easy for him...it...whatever...I asked how to do...in German, more easy for me - and a test: can it understand...?Sidekick tells:3. ZusammenfassungUm auf dem STM32H743 einen SPI-Transfer durch Schreiben auf SPI_TXDR zu starten, müssen Sie:Die Datenlänge im SPI_CFG1-Register korrekt einstellen,die Bitreihenfolge im SPI_CFG2-Register wählen,die relevanten GPIOs konfigurieren,das SPI-Modul aktivieren,und dann die Daten in der konfigurierten Länge auf SPI_TXDR schreiben.Ein Schreibzugriff mit weniger als der konfigurierten Datenlänge ist nicht zulässig.--- THIS didnt help me, as it also just brin

Hello ST Community,I am using STM32H7B3 + TouchGFX + 7-inch 800×480 TFT with GT911/GT9111 touch controller.In the TouchGFX PC simulator, all buttons and toggle switches work correctly. But after flashing to hardware:TFT display is working properly.Touch is detected.Actual touch point and detected touch point are different.Touch is detected on the same horizontal line, but the vertical coordinate is shifted/wrong.I want to know the correct solution for touch coordinate mapping/calibration. Should this correction be done. Please guide me on the correct method for touch calibration and hardware control/status display in TouchGFX.Thank you.

Hello everyone,I am facing a flashing/debugging issue with the STEVAL-SPIN3202 Rev 3.1 board.Board:STEVAL-SPIN3202 Rev 3.1Software Used:STM32CubeIDESTM32CubeProgrammerProblem:While trying to flash or debug the board from STM32CubeIDE, I get the following error:"Failed to start GDB server""Error in initializing ST-LINK device""Failed to connect to device"Also, in STM32CubeProgrammer:Read data operation failsTarget connection sometimes not detectedAdditional Observations:ST-LINK USB is detected intermittentlyBoard LED becomes dim/slow ON sometimesReinstalled STM32CubeIDE and driversInstalled ST-LINK driversTried different USB cables and USB portsTried lower SWD frequencyTried Hot Plug modeTried BOOT0 methodStill unable to flash or read targetI would appreciate guidance on:Correct jumper settings for STEVAL-SPIN3202 Rev 3.1Whether onboard ST-LINK firmware may be corruptedPossible hardware protection/reset issueCorrect power supply requirements during flashingThank you.

Hi Technical Support team,Platform: STM32H7B3I-EVAL board (MB1331-H7B3LIQ-D04)I want to understand memory and flash usage when we build and run any application using TouchGFX Designer  on STM32H7B3I-EVAL board. How to choose memory size and type for customized board based on STM32H7 Platform. ? How to choose specific SOC form STM32H7 family suitable for project requirements? Please refer below details.  On‑Chip (SoC: STM32H7B3LIH6Q)Flash: 2 MB internal FlashRAM (SRAM): 1.4 MB internal SRAM (split across multiple banks: DTCM, AXI SRAM, SRAM1/2/3):package: On‑Board External MemoriesOcto‑SPI NOR Flash: 512 Mbit (64 MB)SDRAM: 8 Mbit × 32‑bit = 32 MBSRAM: 1 Mbit × 16‑bit = 2 MBNOR Flash: 8 Mbit × 16‑bit = 16 MBmicroSD card slots: 2 × (expandable storage)Memory used as per blow log while compiling and flashing code from Touch GFX. :desktop_computer:️ On‑Chip (STM32H7B3

I'm debugging an STM32N647 on a custom board and running into a strange issue: the target silently drops the debug connection every time a breakpoint is hit or a single-step lands inside HAL_Delay(). Environment - MCU: STM32N647X0HXQ (Cortex-M55) - Debugger: ST-Link V2 - Debug mode: LRUN (code in AXI SRAM 0x34000000, running with XSPI/Flash boot) - Toolchain: VSCode + Cortex-Debug + ST-Link GDB Server - SWD freq: tried 400 kHz / 1 MHz / 4 MHz — same result - D-Cache: disabled (SCB_DisableDCache()) - Optimization: -O0 Symptoms 1. Download & run works fine — the firmware executes normally. 2. Setting a breakpoint → when the breakpoint hits, VSCode shows "Target disconnected" / "Lost debug connection". 3. Single-stepping into HAL_Delay() causes the same disconnect. 4. Reset via ST-Link sometimes recovers, sometimes requires power cycle. What I've checked / tried - Power supply is stable (measured with scope). - BOOT0/BOOT1 jumpers are correct for LRUN mode. - Tried lowering SWD freque

I set ETH to be working on RMII_PTP_SYNCHRO, However HAL_ETH_USE_PTP is still not defined by default.

I was running a project in STM32CubeIDE (1.19.0) with 4 Tasks and it ran fine. Now I wanted to add a fifth task and after adding it and the oly thing I had changed was the Name (Task05 instead of myTask05) I got an alert box when saving the .ioc file:I went with this into the FreeRTOS forum, but they say it's an STMicro issue. So I'm coming up with it here now.

I created simple project using STMCubeMX2 for MCU STM32C552. I configured the clock by choosing HSIS on System MUX.  When I compile and run generated code it ends in HardFault_Handler. When using PSIS option - the same result. HSISDiv3 clock works well. When I divide HSIS or PSIS clock by 2 on AHB prescaler it also works.   Any idea? Thank you