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Thank you for helping.I want to access common variables on several screens (View).How do I pass a variable to View?Will it be passed to the base class of View?I want to make it a smart way without using global variables.Thank you.

I'm using both ADC's in continuous / interrupt mode on some micro's in the STM32F103 family and it's working properly and fills my needs nicely.The core components which are commonly presented in the online tutorials are...Calibration:HAL_ADCEx_Calibration_Start(&hadc1); HAL_ADCEx_Calibration_Start(&hadc2);Starting the ADC's in continuous interrupt modeHAL_ADC_Start_IT(&hadc1); HAL_ADC_Start_IT(&hadc2);The Callback routinevoid HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc) { if( hadc->Instance == ADC1) { ADC1_Reading = HAL_ADC_GetValue(&hadc1); } else if( hadc->Instance == ADC2) { ADC2_Thermistor = HAL_ADC_GetValue(&hadc2); } }But the ADCs cannot operate in continuous interrupt mode without one critical component that is basically undocumented and almost none of the tutorials mention it. ADC_IRQHandler()I noted one post in this board that mentioned it and based on that I added ...void ADC_IRQHandler() { HAL_ADC_IRQHandler(&hadc1); HAL_A

Hello,I have configured an External flash for the F412 chip. So I modified the STM32F412RETX_FLASH.ld like this:MEMORY { RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 256K FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 512K QUADSPI (r) : ORIGIN = 0x90000000, LENGTH = 4M }   ... ... ...   .ARM.attributes 0 : { *(.ARM.attributes) } ExtFlashSection : { *(ExtFlashSection ExtFlashSection.*) *(.gnu.linkonce.r.*) . = ALIGN(0x4); } >QUADSPI }Configured the QSPi for the memory-mapped and assigned an array like this to the external flash:#define LOCATION_EXTFLASH_ATTRIBUTE __attribute__ ((section ("ExtFlashSection"))) __attribute__ ((aligned(4)))   uint8_t logo_143x78_map[] LOCATION_EXTFLASH_ATTRIBUTE = { /*Pixel format: Red: 5 bit, Green: 6 bit, Blue: 5 bit*/ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00

Hello,I bought Blue pill (stm32103c8) and downloaded the stm32IDE.Once I try to open project, after I choose the board I get a message that there is a problem  and the reason is probably I don't have the necessary firmware.After I try to generate code I see this.   I can't complete my project opening. What can I do?

Hi,I am facing a strange cache problem. I use the DCMI coupled to the DMA in order to acquire an image into the external SDRAM. As indicated in the application note AN4839, I proceed in this way.before to start the DMA transfer I clean the cache (cache_D_Clean();)At the end of the transfer (in the DMA interruption indicating the end), I invalidate the cache (cache_D_Invalidate();)Everything work perfectly on the stm32H7.On the stm32F7, as soon as the cache invalidation routine is called, the CPU generates a bus error.On the stm32F7, in the DMA interruption indicating the end of the transfer, I replaced the cache invalidation (cache_D_Invalidate();) by the cache clean followed by the cache invalidation (cache_D_Clean(); cache_D_Invalidate();). Adding a clean (cache_D_Clean();) seems to avoid the bus error but I cannot understand why.Why the behavior of the H7 and the F7 caches are different on the same code?Thank you for your feedbacks.Any idea why ?

 But when I remove power (with the 3V battery still connected to Vbat) the date/time values freeze. That is, they remain where they were when to power was removed. How do I make the RTC continue to run during power down? Any help is appreciated.

Since a few days I own an STM32H735 Disco board. But I can't get HAL DMA2D to work correctly. The following code shall copy a line of pixels from RAM into the framebuffer:DMA2D_HandleTypeDef hdma2d;   static void ConvertLineToRGB(uint32_t *pSrc, uint32_t *pDst, uint32_t xSize) { hdma2d.Instance = DMA2D;   /* Configure the DMA2D Mode, Color Mode and output offset */ hdma2d.Init.Mode = DMA2D_M2M; hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888; hdma2d.Init.OutputOffset = 0;   /* Foreground Configuration */ hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA; //hdma2d.LayerCfg[1].InputAlpha = 0xFF; hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888; hdma2d.LayerCfg[1].InputOffset = 0;   /* DMA2D Initialization */ if(HAL_DMA2D_Init(&hdma2d) == HAL_OK) { if(HAL_DMA2D_ConfigLayer(&hdma2d, 1) == HAL_OK) { HAL_DMA2D_Start(&hdma2d, (uint32_t)pSrc, (uint32_t)pDst, xSize, 1); HAL_DMA2D_PollForTransfer(&hdma2d, 25); } } //memcpy(pD

HiI have two screens A and B. On A ButtonSTART (Toggle).On B ButtonSTOP (Toggle). ButtonSTART is to change to screen B and turn on the counter. ButtonSTOP is to change to screen A and stop the counter. After changing screen A to B, ButtonSTART should be 0.After changing screen B to A, ButtonSTOP should be 0. How to set up GFX INTERACTION? greetings Andrzej

I'm currently trying to implement a button interrupt and need to disable the button interrupt after the initial call to the isr to avoid excessive interrupt triggering due to debounce. I'm using STM32CUBEIDE/MX currently. The button works as desired if I useHAL_NVIC_DisableIRQ(EXTI9_5_IRQn); (in interrupt)//do some stuff HAL_NVIC_EnableIRQ(EXTI9_5_IRQn); (in main)but this is non-ideal as it disables exti lines 5 through 9.I've been trying to mask the EXTI line using EXTI_IMR. This seems to work for the first button press, but I'm never able to re-trigger the ISREXTI->IMR &= ~(EXTI_LINE_5);//in ISREXTI->IMR &= (EXTI_LINE_5);//in mainThoughts?

Hi,I have a new project which should use only parts with life time of around 10 years. Where can I see on ST's website these information for a MCU?

Hi,i want to know if i did the wiring correct? The 4 x 100nF will be connected close to PIN 19, 32, 48 and 64.PIN 1 got a 1uF.On PIN 13 (VDDA) i added a bead as well.NRST will not be used in the final application, is the 100nF anyway needed?BOOT0 is grounded by 10k.VSS is directly connected to ground. In the Nucleo Board description i saw that PIN 31 and PIN 47 could be connected to a 2.2uF, does someone know why? There is a solder bridge.

Can anyone tell me why the value of 'c' here should be NaN ??On other platforms I get the same result for 'a' and 'c', as expected.#include <math.h>   float a = atanf( -1.0f ); // returns -0.785398185   float b = -1.0f; float c = atanf( b ); // returns NaN I'm using STM32CubeIDE v1.4.0 on Linux.Target is F103RCT6

Hello,I'm planing to design a custom board using STM32F769 and I want to use the STM32F769I-DISCO as a reference but I didn't manage to find the PCB files in the CAD Resources section of the said product. There are only schematic packs, BOM and gerbers but no actual PCB file. I managed to download the whole Altium project for the NUCLEO-F767ZI around a year ago but it seems it's now the same deal with this one as well as with a lot of other products. Does anyone know how can I obtain some reference layout files for the STM32F769I-DISCO or why are they not available?Thanks

good afternoon.I was gonna drive an eMMC flash memory ( something like https://www.samsung.com/semiconductor/estorage/emmc/KLM8G1GEND-B031/ ) with my STM32f407IGT6.I don't know if I can access it through the SDIO peripheral or not. it is mentioned in the datasheet of the eMMC link above that its version is 5.0 . but what I saw in the microcontroller reference manual was it only supports mmc 4.2 . is it possible to use this with my MCU? I have another question too. unfortunately I'm not familiar with flash memory types. can u help me choose a flash memory with at least 4 GB of space that can be soldered beside my MCU? I mean what type of flash memory should I choose? what are the specs that MCU supports? and what are the ways I can connect a flash memory to STM32f407IGT6 ??I would be so thankful if u help me in this case.

I noticed that all breakpoints are disabled in CubeIde. Windows 10 probably checks for updates automatically, so this IDE can't be very old version. What can I do?

The ADC in stm32cubemx will throw a warning in All three ADC's while using a USB_OTG_HS. No matter what i try the error won't go away? Has anyone experienced this?? Will it cause any trouble in functioning of ADC?

As i am new to building my own Microcontroller shield , i want some help ! I want to achieve a high speed USB connection with PC to transfer data from micro controller to PC . Now Do i need a external peripheral with the micro to get the HS connection? HS connection seems to have a lot of pins. The micro controller i am using is STM32H755BIT3 ! Thanks

Hello!I using X-CUBE NFC-6 library on X-NUCLEO-NFC06A1 board in Card Emulation mode and writing on "tag" (board) 300 bytes of data and it causes hard fault during next read or write "tag". I think it's a bug in library, can you help me with that problem?Best regards, Vladimir

Hello,I want to integrate my STM32F746 discovery board in his final destination, to do this I am researching a way to put the board into a enclosure.I know that I could create my own box with 3D conception but I'm not very good with this kind of conception...Does anybody have already integrate an STM32F746 discovery board into an enclosure ? There is specific enclosure on sale for the board on the web?I've found nothing on internet about these questions...Thanks for you help,PS: Sorry for my bad English

Hello, I was trying to set option bytes (BOR) with the ST-Link CLI (v3.6.0.0) for STM32G431, but it prompts that this feature is not available. With the ST-LINK Utility (v4.6.0.0) it is possible to set the BOR Level.I guess the ST-Link CLI is no longer maintained and you have to switch to the new one (Cube Programmer CLI), is that correct?Thank you for your information!

What is happening on vibration data output in time-domain if the low pass filter (LPF2) of iis3dwb was set to 1333 Hz? Does the vibration data output in time-domain cannot show any vibration data of 6.3 kHz frequency? Please advise. Thanks!

I have a NUCLEO-F207ZG board and STM32CubeProgrammer v2.7.0. I would like to use the embedded bootloader located in system memory. So, first I activate bootloader mode pulling-up pin 138 (boot0) of the MCU. Then, in order to verify this first operation, I connect NUCLEO-F207ZG board to STM32CubeProgrammer via ST-LINK/V2-1 interface. The board connect succesfully and if I browse in the MCU Core menu I can see the Program Counter value is in the system memory range address. My next step is to disconnect NUCLEO-F207ZG board from the STM32CubeProgrammer and to select the UART interface (configuration is shown in the attached image) . When I click the Connect button, I get the following message error (see also the attached image):Error: Activating device: KO. Please, verify the boot mode configuration and check the serial port configuration. Reset your device then try again...I tried resetting the board, but it didn't solve the problem. Could you tell me please how to solve this proble

Does somebody know whats the schedule for Porting Azure RTOS (Specially ThreadX) to cortex M4 family?

HelloA new version 1.2.0 of STM32CubeMonitor has been released on www.st.com.The new version integrates some fixes and updates to address some points raised by users and keep the tool up to date.The detailed change list is described in the release note, but I would like to list few ones :New version of node-Red is used : UI has been improved, there is a possibility to see the nodes in a tree view. When a flow is imported, if some nodes are already present, user is warned and user can decide to replace the nodes or not.The problem to load some symbol files from c++ projects is fixed. Copy paste is working on macOS STM32cubeMonitor is compatible with the new mac with M1 processors.The minimum dashboard size is reduced, so user can see small windows while doing other activity on the computer (debugging, …)The single value sub flow has been slightly improved to prevent mistake. The improved version has blue color , like other ST nodes.To update the tool, you just need to download

Hi, I'm trying to use CubeMonitor to access public variables of a base class, and CubeMonitor doesn't see them.The general structure I have is:class Base { public: int var_1; int var_2;}class Derived: public Base { public: int var_3; int var_4;}When I load the corresponding *.elf file into CubeMonitor....I can see:instanceDerived.var_3,instanceDerived.var_4but I can't see:instanceDerived.var_1,instanceDerived.var_2I expect that "public" variables in the base class should be "public" variables in the derived class. Why can't I see them? Is there something I'm doing wrong? Best,Nat