STM32 MCUs Products

I am using an stm32U545RE_Q and want to put my device into standby mode and then periodically wake it up (every 10s). but it doesn't work   Am I missing something or how am I supposed to continue from here?   /* USER CODE BEGIN Header */ /** ***********************

I'm thinking to control for VDDA on the STM32H563.I'm considering by the red line in the diagram below, but are there any problems?I'm considering when VDDX independent from VDD, can be rising and falling VDDA.Please advise for me.Best regard.     

Hello,I am using STM32G4 to develop a project where I am running FreeRTOS.Recently I was working on debugging the issues for low power mode.I can confirm all the peripherals clocks are disabled before entering the STOP1 mode, but the power consumption is still very high (~35mA). My function to prepare for STOP1 mode is here:void EnterStop1Mode(void){    /* Ensure all tasks are idle before entering Stop mode */    taskENTER_CRITICAL();      //HAL_PWREx_EnableLowPowerRunMode();    /* Disable SysTick Completely */    SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;      HAL_SuspendTick();    /* Disable Peripheral Clocks to Reduce Power */    HighPowerS

I am using STM32F100. I wrote a very long code for my timer interrupt. If the processing time of this code exceeds the interrupt duration, can a pin I SET be RESET?

Hi,We have a project where we use two NOR flashes connected to a STM32U5A9.One is used for UI content, and is setup in memory mapped mode. The other is used for filesystem and is used in indirect mode.The OCTOSPI clock is 100MHz.UI NOR Flash, connected to OCTOSPI2: MX25L6433FileSystem NOR flash, connected to OCTOSPI1: ISSI IS25LP256Dboth flashes are connected in quad spi mode and are run in STR mode.We have made measurements of the signals and the timings of the signals to the flash used for filesystem does not look all that good, data signal setup times were 0.6ns-0.8ns instead of >2ns. For this, the solution was to change the OCTOSPI clock used for this flash to 50Mhz.So the clocks are as follows:UI flash clock: 100MhzFileSystem flash clock: 50MhzI have read application note AN5050 and made a few changes according to table 8.For both flashes:Sample shifting: Half-CycleDelay hold quart

Hello everyone,I am currently working on a project where I need to establish communication between the OpenMV H7 R2 board and the STM32 Nucleo-L476RG board. The goal is to transmit data generated by the OpenMV board (such as object detection results) to the STM32 board for further processing and control.However, I am facing an issue where the STM32 Nucleo board is not receiving or properly interpreting the data sent from the OpenMV board. Below are some details of my setup:OpenMV H7 R2 Board: Configured to send data via UART (using uart.write() function).STM32 Nucleo-L476RG Board: UART interface configured using STM32CubeIDE (HAL library).Communication Protocol: UART (I have connected TX of OpenMV to RX of STM32 and common GND).Problem: Despite configuring UART settings (baud r

Please teach me about FSMC in STM32 MCU. When the CPU communicates with external MRAM, can FSMC be used?   <MRAM specifications> Interface Type:Parallel Data Bus Width:16 bit

Hi All, I was testing my new STM32H746XIH6 board and met the post below by @GSpre.1 during a search about SDRAM  performance. GSpre.1 - Performance characteristics of SDRAM on STM32F7508-DISCO board I don't have a lot of time to read MPU documentation, maybe someone has an idea about the code piece below that @GSpre.1  adviced.  I did not perform a precise measurement but used Systick for both internal and external (32-bit SDRAM) memory array manipulation time for the same data length. (I-Cache and D-Cache are both enabled as expected.)Internal memory test:

Hi allim using the STM32L4R9AI evaluation board ,with IS66WVH8M8BLL HyperRam memomry.with the help of AN5050 i try to communicate with this device in memomry map modeand also toke for reference the memory map mode in STM32CubeH7 package (https://github.com/STMicroelectronics/STM32CubeH7/tree/master/Projects/STM32H735G-DK/Examples/OSPI/OSPI_HyperRAM_MemoryMapped)) i notice that during my memoey allocation operation the MCU not putting the data in the desire location and it not working as expected.the behavior that i saw in that the data was written into the device but not in order.Is it due to this device in PSRAM ?i saw at ERRATA es0393-stm32l4rxxx @

Hi,this is my MCU code: STM32H563VGT6. I'm working to a porting from Texas to ST.I need to efficently use the two Rx FIFO (3 messages depth) of the FDCAN module. In Texas I had 32 mailbox divided into transmission and reception.Each FIFO has four buffer.I need to accept all messages I receive.I would like to find a way to fill FIFO 0 and then move to FIFO 1.The only solution I found is to create two range filter: one for the first half part of IDs space assigned to FIFO 0, the second for the rest of IDs space assigned to FIFO 1.In this way I'm going to overload FIFO 0 or FIFO 1, depending on the IDs that I receive. There is a way to maximize the use of two receive FIFO ? Thank you.Regards.

Hello, i need help with na stm32l031k6, I want to just start the processor and read it with an st-link v2, I have connected BOOT0 to GND(i haven't added a 10k resistor, but that shouldn't be the problem ), NRST with pull-up 1k to VDD, VDDA and VDD are connected together. From what I read online I can pass without the external crystal because there is an internal one. So when I connect the VDD to 3v3 on the st-link, the GND to the st-link GND, SWCLK to PA14, SWDIO to PA13 and the chip isn't recognized. I have ruled out an faulty st link because it recognizes a blue pill f103 board. Please tell me if I am forgetting something

I am starting some test with this modulehttps://it.aliexpress.com/item/1005002482177244.htmlwith 7” lcdI have found only one example that run but with TouchgfxI have got the same ioc from this example to generate a new code and insert the functions to switch on lcd but still no resultI would like to use the normal functionsBSP_LCD_Init() ;BSP_LCD_DisplayStringAt(10, 80, buf, LEFT_MODE);BSP_LCD_DrawBitmap(0, 0, (uint8_t *)(&BackGround0));   

I am trying to persuade an stm32F412 to provide Periodic PC sample packets.Reference manual RM0402 implies it is doable (Configure DWT as a PC sampler)The "Cortex-M4 Technical Reference Manual r0p0" says "You can configure the DWT to generate PC samples at defined intervals" and DWT registers are described in the ARMv7M Architecture Reference ManualThat reference manual contains what I thought were reasonable instructions.I can see the CYCCNT register changing value as expected.I have confirmed that ITM and DWT registers can be written to. I'm obviously missing something!The below code does generate ITM packets over the SWO interface of my stlink v2-mini e, picked up via openocd, so I believe that the serial and clock speeds are set correctly.   DBGMCU->

Hello everyone,I am developing a custom PCB and am having a problem while trying to flash the chip.Before delving further, I need to say that I have made a mistake with routing the JTAG traces to 10pin JTAG connector and may have burnt the chip. I tried to circumvent this by soldering a new chip and using external wires as made a new connector for JTAG 20 to 10pin adapter (https://www.adafruit.com/product/2094) which then connects to ST-LINK/V2:After this I would get TDI ERROR message. I tried every possible type of connection available on

Hello,The setup comprises a keyboard connected to the Host-configured USB port of an STM32F4 dev board and the keyboard is configured with the following two HID Report Descriptors: 0x05, 0x01, // Usage Page (Generic Desktop Ctrls) 0x09, 0x06, // Usage (Keyboard) 0xA1, 0x01, // Collection (Application) 0x05, 0x08, // Usage Page (LEDs) 0x19, 0x01, // Usage Minimum (Num Lock) 0x29, 0x03, // Usage Maximum (Scroll Lock) 0x15, 0x00, // Logical Minimum (0) 0x25, 0x01, // Logical Maximum (1) 0x75, 0x01, // Report Size (1) 0x95, 0x03, // Report Count (3) 0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x95, 0x05, // Report Count (5) 0x91, 0x01, // Output (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x05, 0x07, // Us

I'm searching for super coding comfort in CubeIDE.   Currently TIM2 resets/updates.In HAL_TIM_PeriodElapsedCallback()  I "manually" start HAL_ADC_Start_DMA() the Scan conversion of four channels and have the four results shipped into my progs memory, via DMA.   Works like a charm.But there is the mighty diagram  (Fig.31) on p.213 of the STM32F411CEU6  reference manual, clearly showing that ther are alternatives to starting the ADC manually via software.  Among a lot of options there is TIM2_TRGO or TIM2_CHx configurable as ADC trigger input.So,  is the following possible:1) TIM2 loops indefinitely at a speed configured by me after being started once in main().2) At every interation TIM2 triggers the start of  the ADC (HOW?).3) The ADC is configured to convert 4 channels.4) The ADC is configu

Given:  void USART2_Init (void) { RCC->APB1ENR |= (1<<17); RCC->AHB1ENR |= (1<<0); GPIOA-> AFR[0] = (7<<8); GPIOA->MODER |= (1<<5); USART2->BRR = 0x0683; // 9600 at 16MHz USART2->CR1 |= (1<<3); USART2->CR1 |= (1<<13); } void USART2_Write(int ch) { while(!(USART2-> SR & (1<<7))); USART2->DR = (ch & 0xFF); }   No input data on /dev/tty* -Are there hints/commands for generating input/later output data on tty* ? GreetingsTIMBO 

Hi,I'm using the internal bootloader of the STM32L522 with STM32Cube Programmer to upload code via UART. I can upload new code without any issues. The problem is that I need the application to start after the programming is complete. I have the "Run after programming" box checked, but it doesn't start after the programming is complete. I have tried the same process using the STM32F411 and the application starts after programming. I'm very new to STM32 microcontrollers and would greatly appreciate any help I can get. 

Hi there,this is my first post here and also the first time that I mess around with STM32 processors.A few months ago I decided to start a new project for realtime audio processing with DSPand the STM32H7 series seemed to me a good candidate for what I want to do.So I bought a development board with STM32H743, a couple flash chips and a few CS4272 codecs.I started the whole project, i wired everything and started writing the firmware.I used as a guide a few youtube videos and soon I came up with the base code. The problem is that maybe I have some buffer synchronization issues because I get distorted sound.Here are some details about the project. Clock set at 480 MHz, the CS4272 is set as standalone in slave mode and connected with I2S. The audio frequency is set at 48Khz and the dataframe is 24bits at 32 bit. I have verified that all clocks are correct. The levels of the audio signal are within specs. I use circular buffer with

Hi All,We are currently working with the STM32U083RCT6 microcontroller for a capacitive touch switch and LED drive design. While all other functions are working correctly, we are encountering issues with the touch sensing functionality on pins PB5, PB6, and PB7.Here are the details of our setup and the issue:Capacitive Sensing Pins: PB5 (Pin 57), PB6 (Pin 58), and PB7 (Pin 59) are configured for capacitive touch sensing.Touch Pad: A capacitive touch pad is placed between these pins. We have used a 1kΩ resistor as part of the design, but the touch sensing does not seem to respond correctly.Other Functions: All other functions, including LED driving and general I/O operations, are functioning properly.Could you kindly provide guidance on the following points:Pin Functionality: Are PB5, PB6, and PB7 s

Hi for everyone,I try to implement window watchdog to my system. I got reset every single time during enabling watchdog in HAL_WWDG_Init() function and exactly WRITE_REG(hwwdg->Instance->CR, (WWDG_CR_WDGA | hwwdg->Init.Counter)); here. These are my watchdog configuration  hwwdg.Instance = WWDG; hwwdg.Init.Prescaler = WWDG_PRESCALER_8; hwwdg.Init.Window = 64; hwwdg.Init.Counter = 127; hwwdg.Init.EWIMode = WWDG_EWI_DISABLE; I want to start watchdog and feed periodically but now, I just got reset and even dont even initialize successfully. It is default init function of library as you know. What should I do to successfully initialize Watchdog, feed it periodically, and ensure it runs properly?I will be grateful for your help.

Good afternoon,I have a problem interrupting the TIM3 Timer, I inserted an output pin to make an alternation but no oscillation appears on the pin.Source code attached.I compared it with other examples and in my understanding everything seems to be fine. Would anyone have any idea what it could be?TksFernando

Is it possible to use the ITM or to get debug message from the stm32g051 using the PEmicro multilink universal? I try to insert this code but aparently there is no CoreDebug on the stm32g051g8. Thank you. 

I was trying to interface W25Q256 with STM32H563ZI in QuadSPI mode as i have done with normal SPI it was working fine as i need to operate at higher frequency than normal spi for continous read and write operation. I tried to read Device information first but i was unable to read the device information mode. This is the parameter that i have set.Also i have attached the programming file.I need help in debugging the code and configuring the parameter in stm32cube ide if needed.  

The issue I am having is as follows on the STM32G051C8T6. We are using the internal RTC with Vbat pin. On this MCU Vbat can be internally configured to be read by the ADC by diving by 3 Bridge. We have ADC Setup, I am making sure we perform the ADC Calibration before performing any conversions and I get ADC Values of either 4095 or 2047 with no in between. Even with the Vbat pin pulled low to ground or floating we get a reading of 2047. I have played around with setting the sample times slower as well with no change.Below is function used to initialize ADC static void MX_ADC1_Init(void) { /* USER CODE BEGIN ADC1_Init 0 */ /* USER CODE END ADC1_Init 0 */ ADC_ChannelConfTypeDef sConfig = {0}; /* USER CODE BEGIN ADC1_Init 1 */ /* USER CODE END ADC1_Init 1 */ /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */ hadc1