STM32 MCUs Products

Hi,I have been using Mem Read and Write for my project involving STM32 and ST25DV64K. These functions have been working for me previously but now they return HAL ERROR. I used to encounter this when I was inputting the wrong address but I have since corrected that. I have attached my current project and previously working project. 1. What does HAL ERROR actually indicate? 2. Why might these functions no longer work? Thanks.  

Hello Everybody, I would like transform the HAL_GetTick() function more than 49 days.I don't find a NVIC overflow on this function to increment a second variable. In my while I have do this with  uint32_t Mem_GetTick; uint64_t Tick64;   while (1) { if (HAL_GetTick() != Mem_GetTick) { Mem_GetTick = HAL_GetTick(); Tick64++; } . . . }  MAybe there is a more efficicent solution Thank you to share your exeprience 

Hi everyone!I have this code where the mcu goes into STOP3 mode, and is waked up by a button triggering a wake-up pin.But it only works in debug. Without the debugger, the mcu immediately exits WFI.In debug, when I execute che code, the user led turns on, the mcu enters WFI, I press the wake-up button, the mcu exits WFI and the user led turns off.Without debug, when I execute the code the user led just flashes for a fraction of a second, turning on and off immediately:HAL_GPIO_WritePin(GPIOH, GPIO_PIN_0, GPIO_PIN_SET);HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN7_HIGH_0);HAL_SuspendTick();HAL_PWREx_EnterSTOP3Mode(PWR_STOPENTRY_WFI);SystemClock_Config();HAL_ResumeTick();HAL_GPIO_WritePin(GPIOH, GPIO_PIN_0, GPIO_PIN_RESET);I also tried to put the user led on/off code around the WFI instruction in

I am a beginner and learning I2C DMA, could you tell me what I'm doing wrong?I connected the LCD to Blue Pill and it works fine with function "HAL_I2C_Master_Transmit" i.e. without DMA!But, when DMA is configured, it is dosn't works!Very simple code, but I can not find a mistake!Link to my main.c https://pastebin.com/cz7b2Bbu

Does anyone know if the STM32H7 series supports the capacitive touch sensing library?We're using the STM32H743 in particular

Hi, I am a beginner user of the stm32 board. I am working with an ICM20607 IMU sensor, and I want to read the accelerometer data (x, y, z axes) using the Cube IDE. I ve read a lot of sources for one week but couldn't find a way to fix it. I can't see something on my serial port. What am I missing? Thank you. Here is the code and pins:   /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body **************************

Hi,uc: stm32f446 I have a question regarding non standard word length over RS485.I need to receive next frame over RS4851 start bit, 16-bit data word, 2 stop bits, in total 19 bits.UART implementation allows to receive 8 or 9-bit data words.Could you please advice what can be an approcach to achieve? Best regards, Taras. 

Hello ST Community,I am seeking guidance on how to properly configure the VDD50USB and VDD33USB pins on our STM32 device when we are not utilizing the USB functionality. The explanations provided in the datasheet and application notes are somewhat ambiguous and do not explicitly address the scenario where the USB functionality is not utilized.Could anyone provide detailed instructions or best practices for configuring these pins in such cases? Thank you!

         Issue Description:  My code is divided into two parts, namely the APP area and the TRIM area. When I merge the code of these two areas together, there is no problem with programming through Keil. However, when I separate the code for these two areas (with the APP area located in the middle of Flash and the TRIM area at the end of Flash), the programming process results in an error (see Figure 1). My project configuration is shown in Figures 2 and 3.        Phenomenon Description:  It's worth noting that this issue has not occurred on my computer but rather on a colleague's computer. I have attempted to troubleshoot by replacing the development board and using a different ST LINK on my colleague's computer, but the error persists.      Platform Environment:Keil Version: V5.36.0.0Microcontroller (MCU): STM32L451CEUxProgrammer: ST_LINK 

I have made a custom pcb with STM32767ZIT6. To program it I use VCC, SWDIO, SWCLK, GND, NRST pins to plug in ST-LINKv2. I also have LED to check if code works. I use STM32CudeIDE to write code and configure the chip. I set one GPIO to be an output pin to light up LED and set the clock to external crystal 26MHz. The code only lights up the LED: HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, 1). The problem is that after debugging and running code in STM32CubeIDE the LED lights up only for just brief moment and turns off. CubeIDE shows that program still works. After reseting mcu with reset button on pcb the LED doesn't work at all. I also tried debugging with breakpoints and if I setup breakpoint just after HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, 1); and behind while(1) loop the board works just fine when using constantly run button, but when I delete breakpoint then the problem come back. It look like mcu is in continous reset. I wonder if there is problem with watchdog unit but I

I'm applying ID masking for filtering in the FDCAN protocol, but it's not working. The sensor I'm using has an ID of 315. In the code, I've set it to only receive messages with an ID of 320, but it's also receiving messages with an ID of 315, which it shouldn't. The same issue is mentioned in this link: https://community.st.com/t5/stm32-mcus-products/help-with-fd-can-filter/td-p/585525. I'm configuring all the code settings, but ID filtering in CAN FD is not working. Can anyone explain why this is happening???

I am using a NUCLEO board with a STM32H7A3 MCU for lab classes in engineering. I am giving basic notions for the inner workings of most digital peripherals, so I am avoiding using HAL functions. Using basic CMSIS macros, we can use register names and bit masks to program the peripherals, helping students to understand the interaction between software and hardware.Now it is time to work on the I2C interface. We connected a 24C16 I2C EEPROM with SCL to PB8 and SDA to PB9, and external pull-ups. Then we tested the interface and the EEPROM, writing a program using CubeXM and HAL, which works perfectly. Then I proceeded to read the I2C chapter in the manual and write code to initialize the I2C interface (at 100kHz) and to write a sequence of bytes to the EEPROM. When I tested it, though, the program froze at TXIS flag test: the flag is never set. Then I connected a logic analyzer to the SDA and SCL pins, and noticed the SDA pin working correctly, sending the "10100000" sequence (d

Hi everyone,Help please,Im using CubeMX 5.0 with STM32F407 Disco board, I had activated the HSE clock to be the clock system with 168 MHz (HCLK on the clock tree of CubeMX).Im tryning then to get the CPU clock, ( to introduce it in the Basic systik manipulation)But when generating the project, I noticed that the following function;uint32_t HAL_RCC_GetHCLKFreq(void){ return SystemCoreClock;} with uint32_t SystemCoreClock = 16000000;there is something wrong in this value ( it would be HCLK of the clock tree of CubeMX) or im wrong in my analyzing? Then how can i get the system clock? there is already an implemented function that return directly HCLK?Many thanks

Good afternoon! Our university bought approximatively 9 or 10 B-L4S5I-IOT01A Discovery kits for lab/projects at Embedded Systems course. I found that for this board I have no examples. I installed 30 GB of software/support package on my laptop. On STM32 board site is written:Comprehensive free software libraries and examples available with the STM32Cube MCU PackageWhy I cannot find examples when I create a project with STM32Cube IDE?I want to develop some labs using FreeRTOS and wireless connection protocols without FreeRTOS , but the examples are missing. To view the temperature from sensor mounted on the board I created an example using libraries from STM32Cube_FW_L4_V1.17.2 packageHow can I add Comprehensive examples to STM32Cube IDE.? I am not happy with situation which create difficulties for developing labs for students. 

Hi allSTM32CubeIDE v1.16.1firmware package: cube FW_C0 V1.2.0I use the IDE to start a new project with STM32G071 on its discovery board.Just simply configure PD0, 1, 2, and 3 as inputs with pull-ups.  All other aspects are using IDE defaults.code generated either using HAL or LL, and in the main while (1) loop just put a couple of __NOP() ; calls.Nothing are connected externally.Set breakpoint in mainloop __NOP() call, I am expecting PD_IDR should have pin 0 - 3 all at 1  (value 0xF), but funny enough, PD_IDR has value 0x0a.In fact, this is observed after MX_GPIO_Init is called.void MX_GPIO_Init(void){ GPIO_InitTypeDef GPIO_InitStruct = {0}; /* GPIO Ports Clock Enable */__HAL_RCC_GPIOD_CLK_ENABLE();

Hi I am trying to get a high ADC sample rate "above 10MHz" with the STM32G4 family, I am playing with NucleoG474RE at the moment. I can see there is an example of Triple Multimode Interleaved for CubeF4 :STM32CubeF4/Projects/STM324x9I_EVAL/Examples/ADC/ ADC_TripleModeInterleavedBut for the G4 family, it seems only Dual Interleaved is available, and not Triple. Is this correct? Since there are five ADCs available on the G4 family I was hoping to be able to achieve a higher sample rate, but it seems now I cannot use more than two ADCs in the interleaved mode. Is it possible to achieve above 10MHz in this case, or somehow do Triple Interleaved?Thank you for your help/   

Good morning. I want to use my Nucleo to light up the LED of my stm32h747. For this, I first programmed a GPIO output for my nucleo board. I connected a wire and measured 3.4 volts and 120 mA with a multimeter. then, I decided to toggle the wire to port D0 of my stm32h747. I used the schematics to enable the port and then wrote a simple code to see if it worked: 

I would like to enable write protection via an option byte.However, HAL_FLASH_OB_Launch() hangs, and even if the CPU is reset afterwards, the option byte is not rewritten.This issue occurs with both combinations: my board + J-Link or Nucleo + ST-Link.I have the following function to set the option bytes: void set_write_protection(uint32_t WRPArea, uint32_t start, uint32_t end) { FLASH_OBProgramInitTypeDef OBInit; HAL_StatusTypeDef status; HAL_FLASH_Unlock(); HAL_FLASH_OB_Unlock(); OBInit.WRPArea = WRPArea; HAL_FLASHEx_OBGetConfig(&OBInit); if (OBInit.WRPStartOffset != start || OBInit.WRPEndOffset != end) { OBInit.WRPStartOffset = start; OBInit.WRPEndOffset = end; OBInit.OptionType = OPTIONBYTE_WRP; status = HAL_FLASHEx_OBProgram(&OBInit); if (status != HAL_OK) { return; } HAL_FLASH_OB_Launch(); } HAL_FLASH_OB_Lock(); HAL_FLASH_Lock(); }

Hi,I run the NUCLEO-F303RE eval board. I separated the ST-Link part from the target processor part and connected GND/TCK/TMS/NRST/SWO by wires. I populated the 8MHz xtal with Rs and Cs on the target part. This works fine.I copied the circuitry for the target processor according to UM1724 documentation for my own board with populated xtal. I connected it to the ST-Link and flashed it with CubeIDE.I read "Verifying ....." and "Download verified successfully" . So flashing seems to work.Then I constantly get: "Target is not responding, retrying" The xtal is not oscillating. The target processor does nort work either with direct MCO clock from ST-Link.I checked Vdd and GND. I checked BOOT0 pin 10k to GND. VDDA and VBAT is not applied. What does it need more to start?THX CheersDetlef

Hello,I have an Olimex board with an STM32F107 cpu on it.It start in the bootloader and I can upload firmware to it.For this I use CubeIDE and CubeProgrammer.I need to give USB support to my application so that to communicate with a PC.In CubeIDE, I have initialized USB_OTG_FS (without SOF signal as my cpu does not support it)I then regenarated code and recompile (through right click on project name then "Build project").Then program the cpu.Then Reset the cpu but it does not work (I do not hear beep as when a new USB device is connected) ?Do you have an idea on what happens ?Thanks in advance for your help.Kind regards,--MDe / Belgium

I'm trying to set the polynomial for the CRC block and having some difficulty. I want to set the CRC block to compute a CRC-32K (Reversed Koopman) over my data.Here are the detailsCRC-32K (reversed Koopman polynomial) - 0xEB31D82EInput data - 0x31, 0x32, . . ., 0x39I expect the resulting CRC to be 0x2D3DD0AEHow I setup my STMh755 CRC block  #define CRC_POLYNOMIAL_32B 0xeb31d82e static const uint8_t aDataBuffer[] = { 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39 }; /*##-1- Configure the CRC peripheral #######################################*/ CrcHandle.Instance = CRC; /* The default polynomial is not used. It is required to defined it in CrcHandle.Init.GeneratingPolynomial*/ CrcHandle.Init.DefaultPolynomialUse = DEFAULT_POLYNOMIAL_DISABLE; /* Set the value of the polynomial */ CrcHandle.Init.GeneratingPolynomial = CRC_POLYNOMIAL_32B; /* The user-define

HiMy name is Jonah and I’m working on STM32L031K4U6  .My device needs to go to standby, wake up via PA2(WKUP3) or RTC wakeupI follow  Doc RM0377 page 869 (to update PRER) , page 870(to update CR)If I write : RTC->CR          =0x00000404U;  ( WUTE=1 but WUTIE=0)      then RTC doesn’t wakeup ,still  , WKUP3   does wakeup.If I write : RTC->CR           =0x00004404U;  (WUTE=1 but WUTIE=1) then:   If WKUP3 occurs before 1st RTC wakeup than wakeup happens, yet RTC wakeup doesn’t.Moreover- if  WKUP3 occur after RTC wakeup should have (but doesn’t) then no wakeup is achieved (anymore/ever)I want to assume that the wakeup from standby is an event (WFE) and not an interrupt- although : I did try to activate the NVIC –still didn’t work.If I write : RTC->CR&nb

Hello, i try to configure a STM32H7S7L8H6H in CubeMX and it seems that, when Ethernet RMII is configured, SDMMC2 is unusable because there are some pins like PC1 which can't be remapped. Can this be true?This chip is designed for external memories and i want to use microSD and eMMC. What is the STM32H7S7L8H6HU chip? Is it a improved stepping?

Hi, I am having a problem with a unexpected restart.The first time I use the I²C bus by invoking HAL_I2C_Master_Transmit, the MCU restarts after reaching this line:line 7276 of stm32g4xx_hal_i2c.c/* update CR2 register */MODIFY_REG(hi2c->Instance->CR2, \((I2C_CR2_SADD | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_AUTOEND | \(I2C_CR2_RD_WRN & (uint32_t)(Request >> (31U - I2C_CR2_RD_WRN_Pos))) | \I2C_CR2_START | I2C_CR2_STOP)), tmp); It just goes straight to the reset handler, no hard fault is triggered. I am using I2C1, and that shares the BOOT0 pin with I²C1-SCL, bu

Hello STM Comunity, I am making this post because I have reviewed many reference schematics for the use of the STM32F103C8T6, and in most of them, I see that they use 20pF load capacitors for the LSE circuit.The datasheet literally states that the value of the load capacitors should not exceed 15pF (considering that both are of the same value) and that the load capacitance of the quartz crystal should not exceed 7pF.It also indicates the maximun LSE driving current (1,4uA) and the oscillator transconductance gm (5uA/V)