STM32 MCUs

Eval board used: Nucleo-U385RG-Q Software tools:STM32CubeIDE Version: 2.0.0 Build: 26820_20251114_1348 (UTC)STM32CubeMX Version: 6.15.0The provided project for the eval board builds without errors.But when I modify the MCU to add a GPIO or I2C using STM32CubeMX,multiple build errors are generated after using "GENERATE CODE" command.These errors are:unknown type name 'HAL_StatusTypeDef'unknown type name 'HAL_LockTypeDef'Although these definitions are defined in the following *.h file:stm32u3xx_hal_def.h/** * @brief HAL Status structures definition */ typedef enum { HAL_OK = 0x00, HAL_ERROR = 0x01, HAL_BUSY = 0x02, HAL_TIMEOUT = 0x03 } HAL_StatusTypeDef; /** * @brief HAL Lock structures definition */ typedef enum { HAL_UNLOCKED = 0x00, HAL_LOCKED = 0x01 } HAL_LockTypeDef;Apparently, the errors are created from define guards not allowing other filesto access and use the “typedef enum HAL_StatusTypeDef and HAL_LockTypeDef in stm32u3xx_hal_def.h.To correct the problem:I had to m

Hello, I made a board with an STM32F103C8T6 which uses USB.My issue is that when conecting USB (self powered or with external power) I get the following error on windows:Windows has stopped this device because it has reported problems. (Code 43) A request for the USB device descriptor failed.Things I checked:- When no USB is connected, the D+ line is pulled to 3v3, but when connecting the USB it goes down to 2.8 with 0.5v being on the resistor.- Checked continuity from USB header to A11 and A12 pins (when unpowered)- Resolder pins to ensure propper contact (Except FL1, I checked that everything else is proppery soldered, but I guess continuity is a good proxy test)- Changed MCU, USB header and FL1 for new ones in case they got damaged- Firmware was tested with a bluepill and everything worked.It's been a week with this issue, if someone know what could be happening or could give me tips to help diagnose this I'd appreciate it.Here are the schematics for that part of the board: &n

I am struggling with an intermittent boot issue with Nucleo STM32L432.   What happens: When the board boots up from VIN of 7V, sometimes (I would say 50% of the time) STM32 struggles to run the code, it's almost like it stuck during the boot up. When i power it up from USB to check what is the issue, problem goes away and board is running fine.  My application involves ~40 of these boards and i am seeing this issue in 5 boards and it happens 50% of the time in those 5 boards.    Only mods i have done to the nucleo board are -  1) I have taken a suggestion made in this post: Solved: STM32L432 Nucleo-32 External Power - STMicroelectronics Community i.e. to remove SB9 to be able to power it from VIN of 7V.  2) Connected a solder bridge at SB17 for HSC   Anyone faced this issue or any troubleshoot tips anyone can share. Thanks in Advance    

Hi everyone,  I'm looking for a way to be able to encrypt my flash on stm32g030. How do I do it? Thanks

Hi, I'm have a trouble with UART Interrupt when using FreeRTOS.I want to receive a string buffer send from Serial Terminal ( Hercules Software ) using UART interrupt mode. But when I send data, I just receive 2 character. Ex: When I send "Resume", I just got echo back 2 line: "Rx_data:R","Rx_data:e".Has anyone else encountered this problem? Please share a solution with me.This is my call back function: void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { BaseType_t xHigherPriorityTaskWoken = pdFALSE; HAL_UART_Receive_IT(&huart1, &Rx_data, 1); if(Rx_data == '\n') { Rx_buffer[Rx_index] = '\0'; if(strcmp((char*)Rx_buffer,"Resume") == 0) { xTaskResumeFromISR(AboveNormalHandle); } Rx_index = 0; } else { if(Rx_index < sizeof(Rx_buffer)-1) { printf("Rx_data: %c \n",Rx_data); Rx_buffer[Rx_index++] = Rx_data; } } portYIELD_FROM_ISR(xHigherPriorityTaskWoken); } 

Many small format LCD displays do not provide parallel RGB interfaces but instead rely on high-speed serial interfaces such as QSPI. To support this class of display is it possible to use the XSPI peripheral in QSPI mode to drive them? An example LCD controller transaction is shown here:  The data line mapping is as follows:SDI_SDA -> IO0DCX     -> IO1D[0]    -> IO2D[1]    -> IO3

Hi，Can the equivalent gate count for the STM32H750VB be provided for reliability research?Thanks  

Hi,I selected STM32H7A3ZIT6Q to use external SDRAM. However, in STM32CubeIDE under Connectivity → FMC, the SDRAM option is not available.When I select STM32H7A3ZIT6 (non-Q), the SDRAM option appears.Does the STM32H7A3ZIT6Q support SDRAM, or is this a CubeIDE limitation?Thanks.

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Hello everyone,I'm trying to disable the TrustZone (TZEN bit) on an STM32L562E-DK development board to leave it in a completely clean state (without protections) so I can use it as a standard MCU. However, I'm encountering errors when trying to modify the Option Bytes with STM32CubeProgrammer, and I would appreciate your help.My configuration:Board: STM32L562E-DKSoftware: STM32CubeProgrammer v2.21.0Connection: Integrated ST-LINK (SWD at 8000 kHz)Current Option Bytes status (initial read):TZEN = 0x1 (Trust Zone enabled)RDP = 0xAA (Level 0, no readout protection)SECWM1_PSTRT = 0x0, SECWM1_PEND = 0x7F (Safe area defined)Screenshots of the complete configuration are attached.The problem:From the STM32CubeProgrammer graphical interface, I can modify and apply changes to almost all Option Bytes (such as safe areas or write protection) without issue. However, when I try to uncheck the TZEN box (to set it to 0) and click "Apply," I get the following errors:Error: Option Byte Programming failed

Hello!I'm trying to set up a program via STM32CubeMX. The MCU I'm trying to use is the STM32WBA65CIU6 with the SMPS Pinout.source: datasheet page 72 (https://www.st.com/resource/en/datasheet/stm32wba62ci.pdf).However this configuration seemingly isn't available in STM32CubeMX, only the SMPS_USB Version.source: STM32CubeMX with STM32WBA65CIUx chosen as MCU.There's only one MCU listed in the MCU/MPU selector. Just in case if there are supposed to be multiple.source: STM32CubeMX with search-string STM32WBA65CIU6 in commercial part number.Is there an option that I'm missing? Or will I have to address this manually in code?Thank you in advance!  

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I'm using an STM32F469I-DISCO ($AU1) board that I've used for a few little projects and have come to try to prototype something using it's MEMS digital microphones (MP34DT01-M). In the documentation for the discovery board it lists the connections of these microphones to the DFSDM peripheral pins of the MCU, however looking in the datasheet of the F469 it doesn't list the DFSDM peripheral anywhere and on pages that discuss the DFSDM peripheral the F469 is not listed as an MCU with DFSDM compatibility. Furthermore, on the CubeMX example project for the F469I-DISCO the pins connected to the MEMS microphones are configured with the SAI peripheral.Is this a documentation issue for the discovery board or are there extra steps I need to take to use the DFSDM peripheral? Thanks for any help anyone can provide.

Hey guys,I am searching for RoHS/REACH records for STM32G431KBU3/STM32G431KBU6 but they're only accessible for one of the STM32G431 parts.Any of you have any pointers to how I may else obtain such documentation?

stm32_IEC_project_CM7.elf [cores: 0]Thread #1 [main] 1 [core: 0] (Suspended : Signal : SIGTRAP:Trace/breakpoint trap)0xfffffffe<signal handler called>() at 0xfffffff1HAL_TIM_IRQHandler() at stm32h7xx_hal_tim.c:3,777 0x8055b74TIM3_IRQHandler() at stm32h7xx_it.c:185 0x804a352<signal handler called>() at 0xfffffffdprvPortStartFirstTask() at port.c:267 0x8065f78xPortStartScheduler() at port.c:379 0x806608cpxPortInitialiseStack() at port.c:214 0x8065ed0   This is the error which comes suddenly. here i use tim3 as base source for the tick interrupt of task scheduler as replace of  systick. Previously this code works fine. suddenly creates issues in worked hardware itself  . after some time device works and fails randomly but same code what reason    

Hello, I saw the thread below and now a bit confusedhttps://community.st.com/t5/stm32-mcus-embedded-software/update-about-usb-pd-stack-to-support-epr-mode/td-p/829168It says EPR is supported with a TCPP package but the TCPP-M18 itself - rated to 100W max.  Do I install the software package but do not put TCPP chip? If so How do I know which functions I need to Disable/enable because I know TCPP communicates with MCU over I2C (which is hidden BTW in main.c)

Hello, after some time trying to debug the PA2 pin on my Nucleo H503 I realized, by looking at the board, that PA2 goes into SB7 and SB1. Reading the manual it seems like both SB1 and SB7 must be off for USB Device to work, however, this will disable PA2 and doesn't seem to be documented in the manual for the H503 board (while there are some explicit SB configs for PA2 on the H533 board). Am I missing something?

Hello, I installed STM32CubeIDE and attempted to set up my first project as you can see in the three attachments.Based on YouTube videos, I expected to see the MCU outline so I can assign functions to the pins.  As you can see in one of the screenshots, I'm getting a message stating that "There is no active editor that provides an outline"I did the following to try and address this, with no luck...   *  Uninstalled and Reinstalled STM32CubeIDE, including manually deleting folders that were not removed by the automated removal process.  To be safe, I used a different project folder name but this didn't help.  *  Installed STM32 on a second Windows 11 laptop but saw the exact same problemI didn't bother trying older versions of STM32CubeIDE because I read in a different post that this did not solve the problem for the other user.Any help is appreciated.

SYS CONFIG =========================================== IO Supplys = 3,3V, VCORE = 2,5V regulator used, FSystem = 200 MHz Timer1 is configured for Output Compare CH1, sig 0.1MHz 50% duty expected (all necessary clk enabled) Compare SIG is routed to PK1 via alternate conf  __HAL_RCC_GPIOK_CLK_ENABLE(); GPIO_InitStruct.Pin = GPIO_PIN_1; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; GPIO_InitStruct.Alternate = GPIO_AF1_TIM1; HAL_GPIO_Init(GPIOK, &GPIO_InitStruct); After exec of this routine, PK1(J15) pin is in floating mode (1V because of 2Meg external pull-up to supply) . Same signal routed to another port/same load with same routine is working properly  Same problem and behavior with TIM8 witch can use the same PK1 pin Note1 : if internal pull-up or pulldown added to pin conf, the pin is no longer floating, Hi(3,3V) for pull-up, Low(0,1V) for pulldown but still no signal output (input mode suppose

I want to calculate the resistance/power of an AC heating element by measuring voltage (via a voltage divider) and current (using an ACS71240 current sensor). The hardware setup is fine. I get the expected values. I checked this when using Arduino Framework's analogRead(). But that call is so slow (because it does the whole ADC initialization and deinitialization every time), that there's too much time between the voltage and current measurement.So while I'm still using the Arduino Framework for most of the code, I've used CubeMX to configure the ADC with DMA and integrated that code into mine. I initialize the ADC/DMA, run one ADC calibration, then in a loop call HAL_ADC_Start_DMA(), wait on a dma_complete variable, that is set in the HAL_ADC_ConvCpltCallback(). This works ... almost.At some point the values of the channels end up in the wrong order in the DMA buffer. So the second channel's conversion result is first in buffer and the first's in the second place. This

Hello everyone.  I am trying to build an i2c multi-drop network with STM32C0316CT6 targets. To achieve that i use the differential buffer PCA9615. Each target (and the master of course) has its own PCA9615, the topology is as shown in the picture below. My problem is that when clock stretch is enabled (default) and master pulls the clock low, then the target pulls the clock also low for a tiny amount of time during the normal pulse duration. PCA9615 i2c a-side (non-differential) sets the SCL (a-side) low to ~0.3V (as expected) and then the target pulls the SCL to 0V for that tiny amount of time. For that tiny amount of time, the master and the target are both holding the clock low. That results in an extra voltage offset on the differential side of the buffer. On the multi-drop network, all targets do the same and the differential voltage offset is multiplied and gets huge. The expected behaviour would be from the target to pull the line low only in the stretched pulse and not on

Hello,Does anyone know if there is a stack analyzer tool / plugin available in CubeIDE, in particular to analyze the stacks dynamically allocated in ThreadX Memory pools?Also, under ThreadX Thread List, there is a "stack usage" column.  This column is always blank (or N/A), is there something that needs to be done to enable the "stack usage"?  

This example work perfectly using non interrupt driven UART HAL library, HAL_UART_Receive and HAL_UART_TransmitAny idea on changing to HAL_UART_Receive_IT and HAL_UART_Transmit_IT?Many thanks https://forum.digikey.com/t/easily-use-scanf-on-stm32/21103

Hi,I am making updates to a custom PCB where I would like to add ADC functionality. My board is powered by batteries and I expect the supply voltage to fluctuate slightly and I need the ADC conversions to be accurate. The reference manual says I can use the internal Vrefint to calculate what the value of VDDA/VREF+ so that I may calculate my conversions with better accuracy. Additionally, I wanted to follow this guide (https://community.st.com/t5/stm32-mcus/how-to-use-the-stm32-adc-s-internal-reference-voltage/ta-p/621425) to understand how I may implement this in firmware.The issue I see now is that on the chip's datasheet it mentions that Vrefint is internally connected to ADC1_IN0, however, ADC1_IN0 has no pinout on this package of the chip. Furthermore, in STM32CubeMX the ADC1_IN0 channel is not able to be selected (although Vrefint channel is able to be selected).Now I have some confusion since the datasheet mentions the internal connection. Maybe this package does not have this a

On an STM32U5G7VJTX I'm using a custom board with an ILI9488 480x320 display in 16-bit mode on the FMC.I am using NemaGFX version 3.5.0 for the STM32U5x9 as I don't have STM32U5x7.Drawing lines for a test works fine as long as I skip the nema_cl_wait() function, which hangs forever.To give GPU2D time to finish the work, I replaced nema_cl_wait() with a short loop that takes enough time. But that's obviously not a good idea, as some tasks can take longer or shorter.On the STM32U5G9J-DK2 Discovery kit the same GPU2D stuff runs just fine!Is this because the GPU2D in the STM32U5G7VJTX isn't exactly the same as in the STM32U5G9ZJT6Q?I've experimented with the GPU initialization in nema_hal.c, but without solving this issue.Does anyone have any ideas?/** * @brief Draws a line * [in] x1 * [in] y1 * [in] x2 * [in] y2 * @return None */ void Draw_Line(float x1, float y1, float x2, float y2) { /* Create GPU Command List */ Display.NemaGFX.cl = nema_cl_create_sized(8192);