STM32 MCUs

Title edited to clarify that this is about accessing a file located on a Host PC hello ST Community, I'm trying to open a binary file with the fopen function for a STM32L5 microcontroller, but it always gives me a null value. The code is like this: char filepath[256]; sprintf(filepath,"%s","C:\\fileBIN.bin"); FILE *file; file = fopen(filepath,"rb"); if(file == NULL) { printf("Error occurred opening file. \r\n"); } else { printf("File opened successfully. \r\n"); }   It always gives me a null value but the path exists and is correct. What's wrong? Thanks for supports  

Greetings!   There's an errata for the STM32F6/STM32F5 chips that goes like this:   2.4.1 Extra data written in the FIFO at the end of a read transferDescriptionWhen all the conditions listed below are gathered:• QUADSPI is used in indirect mode.• QUADSPI clock is AHB/2 (PRESCALER = 0x01 in the QUADSPI_CR).• QUADSPI is in quad mode (DMODE = 0b11 in the QUADSPI_CCR).• QUADSPI is in DDR mode (DDRM = 0b1 in the QUADSPI_CCR).• A data is read in the instant when the FIFO buffer gets full at the end of a read transfer, an extra data is unduly written in the FIFO buffer.WorkaroundsApply one of the following measures:• Read out the extra data until the BUSY flag goes low, then discard the extra data.• After reading out all the expected received data, set the ABORT bit of the QUADSPI_CR register to flush FIFO and keep the BUSY flag low. The last register configuration is kept.   I believe this is also present on the STM32F769NI chip. I have done extensive research on this.  

Hello,I just downloaded STMCubeIDE 2.1.1 to generate a simple project for a Nucleo-C562RE board.I am not using CubeMX2 (for various reason, that is not the point).The default empty project generated for STM32C562RE by the IDE has only 1 SRAM element with a size of 64K, instead of 2 SRAM elements of 64K each.FLASH size is correct though.Out of curiosity, if ST were to push a fix for this kind of bug, would it be a new IDE release ? or could it be a STM32C5 pack update only ?

 After porting the application "STM32Cube_FW_U5_V1.8.0\Projects\B-U585I-IOT02A\Applications\SBSFU" to our own board we have everything operational apart from the ability to invoke the local loader in production mode (RDP2).I have reverted to the original B-U585I-IOT02A board and project and have a similar issue so I am wondering if this is broken or we have misunderstood something. The loader can be invoked in TFM_DEV_MODE with RDP0 but not in production mode with RDP2. The SBSFU application runs fine.Changes from the default STM SBSFU project settings we used to test this on B-U585I-IOT02A1) In SBSFU_Boot project remove the TFM_DEV_MODE pre-processor symbol definition2) In boot_hal_cfg.h >> #define TFM_TAMPER_ENABLE NO_TAMPER3) In boot_hal_cfg.h >> #define #define TFM_OB_BOOT_LOCK 04) In flash_layout.h >> //#define MCUBOOT_PRIMARY_ONLY (definition commented out)5) In flash_layout.h >> #define MCUBOOT_APP_IMAGE_NUMBER 26) In hardening.sh

I am using the STM32H753VGT6 microcontroller and need to generate two PWM signals with the same frequency and duty cycle, with a 90-degree phase shift between them, using a single timer. Is this possible? If yes, how can it be achieved?

Split from How to open files on Host PC with fopen on STM32L5hi @KnarfB I tried semi-hosting with the instructions you provided... after debugging, I returned the error as follows: what does it mean?

Hello, I purchased an STLINK-V3PWR from Mouser. When I tried to use it, STM32CubeIDE 2.1.1 suggested updating the firmware. This failed, and the STLINK-V3PWR appears to be unusable (bricked). What can I do? Return the device for a refund/replacement? Or is there a way to re-flash the firmware using an STLINK-V3SET? If it is possible to restore the firmware by re-flashing it, where can I find the correct firmware? Kind regards, Jack.

I cannot get USB DFU serial boot to work correctly with STM32CubeProgrammer.I keep getting the error "Please specify Binaries path" but there is no area to specify the binary path.Does anyone have any experience with USB serial boot on the STM32N6.

Hi, I'm Dheeraj Sudan from the UK. I'm a software developer and also run a business with my wife Meenu Hinduja. I’m trying to create a new project in STM32CubeIDE, but I want to make sure I’m following the best approach. RegardsDheeraj Sudan and Meenu Hinduja 

Dear Team ST,We are using the STM32 MCU (Part No. STM32F407VET6) on our custom board, and we are currently facing an issue related to the reset function.During board power-on or after program loading, the MCU appears to enter a hold or non-responsive state. This issue occurs every time the board is powered OFF and then powered ON. However, when the hardware reset button is pressed, the MCU starts functioning as expected.We kindly request your support in identifying the root cause of this issue. Please advise if any modifications are required on the firmware or hardware side to resolve this behaviour.We look forward to your guidance.Regards,Kaushik@Shubham Prakashpant BOHARAPI

When i try to add breakpoint, there is a cross sign on breakpoint symbol. So even if the code works, breakpoint never works.I try to add __asm("BKPT 0"); but it also did not work. I am not sure what is the problem.My CubeID version is: Version: 2.1.1Build: 28236_20260312_0043 (UTC)

I am looking for a software solution for this race condition:* The power button is connected to both the On/Off pin PD3 and the wakeup pin PB5. See the partial schematic.* The issue is that the STM32G0 enters shutdown mode, but immediately wakes up. Please see my function below.What is missing? Thank you!  void Enter_Shutdown_Mode(void) { sprintf(msgString, "Enter_Shutdown_Mode...\r\n"); Debug_Print( msgString ); HAL_Delay(50); /* Enable the Power Controller (PWR) APB clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* Wait for the pin to be HIGH after the button release. If the power button is currently pressed (LOW), entering shutdown with "LOW" polarity will cause an instant restart. */ while (HAL_GPIO_ReadPin(WAKEUP_GPIO_Port, WAKEUP_Pin) == GPIO_PIN_RESET) { // Wait for user to release the button HAL_Delay(10); } // Debounce the button press HAL_Delay(50); /* Clear the Wakeup Flag. If a flag is set from a previous wakeup, the MCU will fail to enter Shutdown and

Hello everyone! I'm new to the NUCLEO-H743ZI2 board. I need help with two questions: 1) I can't find a description of the STLK backup port -CN2 anywhere. Can you tell me if I can use it to program other STM32 devices on other boards, and how? 2) Can anyone share the schematic for the H743ZI2 board?  

hello,I encountered a problem while developing for stm32u585. When the stm32 wakes up from standby mode, the HAL_RCC_OscConfig() function occasionally fails, "Wait till LSI is disabled" timeout in HAL_RCC_OscConfig() (this project uses IWDG)The specific process is as follows:1. start boot HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_ICACHE_Init(); MX_UART4_Init(); boot to other address(app) 2. app init HAL_Init(); SystemClock_Config(); RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48|RCC_OSCILLATORTYPE_LSI |RCC_OSCILLATORTYPE_HSE|RCC_OSCILLATORTYPE_LSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.LSEState = RCC_LSE_ON_RTC_ONLY; RCC_OscInitStruct.HSI48State = RCC_HSI48_ON; RCC_OscInitStruct.LSIState = RCC_LSI_ON; RCC_OscInitStruct.LSIDiv = RCC_LSI_DIV128; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV1; RCC_OscInitStruct.PLL.PLLM = 1

Hi,I would like to inquire whether the STM32C5 series supports ITTIA DB. Additionally, is it possible to use this library directly within CubeMX for development?

I would like to enable spread spectrum on the STM32H573RIT6.We are currently running on 250Mhz and at that frequency we have big peak which is 15dB above the limit, that's why I would be able to enable the spread spectrum. I looked into the STM32H7 example, so I am already aware and able to modify the PLL realtime. Now my question is how do I connect the DMA of the STM32H5 properly to a timer and a buffer to load the PLL. And also a question I have, what are good values for the PLL.  

Hello,I must implement a SSI (Synchronous Serial Interface) to output a measured value. As SSI in principle is just a bitstream which is clocked out with the serial clock, I wanted to use a SPI in slave mode, as the clock comes from the SSI master.This works in principle, but from time to time I get a bit shift and the received data is delayed by one bit, which results in a division by two.Checking the SSI data clock, I didn't find an expected unstable clock with additional edges but from time to time the SSI master makes a pause after the first falling edge before it starts clocking. Could it be that this pause disturbes the SPI interface? I would have expected, that the SPI in slave mode only checks the clock edges and that the time between the clock edges isn't that critical?

Hello. I'm using a combo of a wba board and a LSM6dsv IMU sensor. I collect sampoles from the imu and then send them to my pc to do some fft there and als odo fft on board using the cmsis dsp libraries. The thing is that my pyrhon spectrum appears to be correct. I'm using a vibrator to make sure about that it [produces the requested  frequency and monitor the results with the integrated vibrator's sensor. The python sprectrum appears to match the vibrator's sensor sprectrum whereas the cmsis results appear a lot more noisy and have an almost mirrored in the middle  huge harmonic. Lets say than my sensor'f sampling rate is 4 KHz, so im able to do fft on up to 2 KHz event freq. If my vibrator is at 300 Hz i will see a huge harmonic in lets say 1600-1700 hz which gets closer the more i go to 1000 Hz. At 900- 1200 Hz the spectrum appears to be a complete mess and at 1300 HZ and afterwards it is simply beautiful. Here is the mcu code. I do a hanning window and median removal

Hello, I use STM32WB05KZ. Could you give me an example about how to store configuration data to NVM by aci_hal_write_config_data() function? - When I tried to store to 0x00 (I used static randow MAC address), it returns 0 but the data is lost when the chip is rebooted; - When I save to any other address (such as, 0x40), it always returns to 0x12. Thanks a lot.  

Hello,Before compilation:   I’m having an issue with IntelliSense (possibly clangd).When a macro is undefined, the code inside #ifdef is correctly shown as inactive (dimmed). However, after I build and flash the project, the same code becomes highlighted as if it were active, even though the macro mDEBUG is still not defined.The highlighting only returns to the correct state after I switch tabs or force a refresh.Is this expected behavior, or could this be a bug or bad config on my side? It brings confusion to my workflow.After compilation: 

Hello, I have started evaluation of X-NUCLEO-ESE02A1 shield with NUCLEO-F401RE board, and used STM32CubeMX for project generation according to PDF inside X-CUBE-SAFEA1 package. However, I can't get any demo running, and both these generated demos, as well as my attempt, fail with error code 0x01 which maps to STSAFEA_COMMUNICATION_ERROR. I have tried putting jumpers for I2C lines pullup on the shield, jumpers P4 and P5, but it did not help. Then I read in the product User manual UM3579 about additional RST PIN so I tried also putting a jumper on P3 connector but still nothing. However then I traced it to PB5/D4 PIN which is actually not used and not advised to be initialized in the Getting started document. So my question is: Do I need to use this pin, and if so, how exactly should it be used, to enable communication with STSAFEA110? Everything other, related to I2C, USART, expansion package itself is enabled, project compiles and app shows logs after flashing to Nucleo,

Hello everyone,I'm working with an STM32L562E-DK board and testing the "TrustZoneEnabled" template included in the "STM32Cube_FW_L5_V1.6.0" package. The goal is to run the basic example that transitions from the secure to the unsecured zone, but I'm finding that, after following all the instructions in "README.txt" and compiling the project, the code gets stuck in the next function:static void NonSecure_Init(void) { funcptr_NS NonSecure_ResetHandler; SCB_NS->VTOR = VTOR_TABLE_NS_START_ADDR; /* Set non-secure main stack (MSP_NS) */ __TZ_set_MSP_NS((*(uint32_t *)VTOR_TABLE_NS_START_ADDR)); /* Get non-secure reset handler */ NonSecure_ResetHandler = (funcptr_NS)(*((uint32_t *)((VTOR_TABLE_NS_START_ADDR) + 4U))); /* Start non-secure state software application */ NonSecure_ResetHandler(); } Specifically on the "NonSecure_ResetHandler()"; or it doesn't even execute the no-secure part.Current option bytes configuration (verified with STM32CubeProgrammer):DBANK => Checke

Hi,I just installed STM32CubeProgrammer v2.17.0 on Linux.When I connect to the board (tried with several different ones), I get the following error;flash loader cannot be loaded. FlashLoaderPath = /home/[yadayada]/bin/FlashLoader/0xI can read the flash, I can do everything, with the exception of flashing. This fails.I first thought it might be a truncated log message. But when I just copied any of the loader files and gave it the file name "0x", I didn't get the error message. So it really looks for a file named "0x". It looks like in the code, the assembly of the file name (all the files match the pattern 0x*.stldr) I tried to do an software update, but this also fails: "The updater package on server is corrupted"  

Hello,just updated to STM32Cube FW_H7 V 1.13.0 but it seems it still contains CMSIS RTOS2 V2.1.3.I'm develop with Keil and STM32 IDE but Keil is using V2.3.1 while Cube comes with V2.1.3.In STM32 IDE I got a compile error when I imported source code developed on Keil.E.g. the thread attribute osThreadUnprivileged, introduced in V2.2.0, is missing in V2.1.3.https://arm-software.github.io/CMSIS_6/main/RTOS2/rtos_revisionHistory.html Any progress here? If no, why?Thanks,Jochen    

I want to add a EXTI0 line to act as a wakeup. I took the BLE_Heartrate example as a base. Out tyhe box, it compiles & runs ok. When I use CubeMX 6.16 to edit the BLE_Heartrate ioc to add PE0 as the EXTI0, next time I compile, I get an error that I'm missing stm32wbaxx_ll_utils.c. If I "cure" this by copying the file from elsewhere, I get other file-not-found errors on stm32wbaxx_ResetHandler_GCC.s and app_bsp.c. What gives? Surely the example provided by ST should be able to handle a minor change in the ioc file? The BLE_Heartrate and other BLE_ examples are inpenetrable and difficult to understand at the best of times. ST is not helping anybody by not explaining how the BLE_Heartrate example may be modified to get e.g. true low power stop2, how to set an RTC alarm to wake up from this.