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I design NFC antenna using ST25TN01K(50pF) chip .This is my first time in RF design. I calculated data with edesignsuit that I shared first photo. Firstly I wonder is my design okay and proper? My design must be small and antenna coil inductance 2.58uH(2nd photo). Both ends of the antenna go directly into the chip.Apart from these, is there anything else I should pay attention to or add? Can you suggest an app or method where I can simulate the nfc antenna and see if it works?

The square antenna inductance equations in app notes AN2972 and AN2866 seem to contain an error (or misleading terms) where it describes the average diameter parameter. The notes say the average diameter in millimeters but it needs to be in meters insteadLooking at things from a units perspective, it's clear that d is expected to have units of m since u0 has units of H/m and all the other quantities are dimensionless. Also, since all the other parameters are dimensionless, the notes on the p parameter can eliminate the "in millimeters" text. It may also be good to duplicate the u0 value for the Inductance of squared antennas calculation. It is repeated in 4.2 (inductance of spiral antenna) from 4.1 (inductance of circular antenna). Not having it present in 4.3 may incorrectly suggest that the value should be different.App Note Links: AN2972 and AN2866

Is there any way to erase 32bytes in flash?

Hi,Is there a possibility for TextArea to ignore translating its text upon language change ?I thought I could achieve that by using a wild card and setting raw string (ie TextArea::setWildcard1 (UnicodeChar* value)) but it did not work as I hoped.As I understand it, after calling Texts::setLanguage (), GFX translates all texts/strings assigned to TextArea(s) to font assigned to new language.I miss something like TextArea::setIgnoreLanguageChange ( bool ignore ).Thanks

Hi,TextArea allows to align text in horizontal direction. How to achieve the same alignment in vertical direction ?Thanks

Hello everybodyI have a problem with reading of the data from the internal temperature sensor. I'm using last Cube IDE and Cube MX for configuring the project.I created the project according to this example: "Get temperature from STM32 internal temperature sensor (simple library)" from refcircuit.(sorry, cannot attach links yet)But without using of the uart part.Temperature step depends on the APB2 frequency.If it 84MHz then sampling period is about 47us with ADC prescaler = 8.And in this case i see next posible values of ADC output: 961, 963, 993.These values changes randomly. If i heat it up, the temperature increasing according to the heater, but with strange steps.If it 21MHz then sampling period is about 188us with ADC prescaler = 8.In this case the ADC output is more accurate, and step looks much more better.It is the strange behaviour for this MCU cause min sampling time must be 10us as in datasheet.Also I have tried to use code without DMA and interrupts, just launch

There are times where I would like a message queue of a single depth. In some similar OSes this is also how semaphores are created. I have hit a near brick wall in STM32CubeMX failing to create a queue with just one element.In this case for the STM32F4 library, I get the following call where I set a "Queue Size" 1 in:Middleware -> FreeROTS -> Tasks and Queues -> Queues -> Queue Size.This creates a function:I2CWriteQHandle = osMessageQueueNew (2, sizeof(i2c_data_type), &I2CWriteQ_attributes);Note the "msg_count" argument is 2, despite all the I2CWriteQ_attributes being consistent with those being set in ST32CubeMX. If the queue is increased to say 16, msg_count remains at 2. Other queues with a osMessageQueueNew "msg_count" set at 16, remain at 16.If I manually correct the "msg_count" argument, the new value is retained when (re)generating the code.I presume this behaviour of unlinking "Queue Size" "msg_count" is unintened and not sure when this issue started. BTW I am u

Hi all,im trying to bring a timer interrupt to work. In the first step I want to create an LED blinky.For that I followed the instructions from the Knowledge base example (How to generate a one second interrupt using an STM32 Timer). The only difference is that I use TIM17 instead of TIM3 (I also tried to use TIM3 at first, but with the same problem).I also checked and debugged the generated Code to initialize the Timer. All functions mentioned in the description from stm32g4xx_hal_tim.c are implemented and called, when MX_TIM17_Init is called from main. The call hierarchy is MX_TIM17_Init --> HAL_TIM_Base_Init(&htim17) --> HAL_TIM_Base_MspInit(htim). The HAL_TIM_Base_MspInit() function resides in stm32g4xx_hal_msp.c and calls the functions to enable the peripheral:void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base) { if(htim_base->Instance==TIM17) { /* USER CODE BEGIN TIM17_MspInit 0 */   /* USER CODE END TIM17_MspInit 0 */ /* Peripheral clock enable */ __H

hello i am working with i2c i used register for coding i2c but when i configure AFRH register i cant upload my code to my board i have target not responding error then i tried hal library but nothing changed

I configured some devices (UART1, UART3, SPI1) in the .ioc file of an STM32F103 project.Just wonder why TIM1 is greyed out and in italics, unavailable?

Hi, I am trying to detect whether a reset event was caused by power on rather than any other reset such as a button reset or a software reset. I attempted to use  if (__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) != RESET)but the compiler reports that PORRST is not recognized. I tried BORRST and that is recognized but i don't believe that that setting is solely for power on detection. Thanks in advanceRichard

For Channel=5 and Rank=1 the result is ADC_SQR1=0xA (incorrect).Should be 0x140.

The description says "USB Type-C user connector" (besides of the ST-LINK connector)https://www.st.com/en/evaluation-tools/nucleo-f072rb.htmlBut I cannot find it in the user manual (UM1724) and on the picture.And same about NUCLEO-F303RE:https://www.st.com/en/evaluation-tools/nucleo-f303re.html

Hi, I'm trying to practice FreeRTOS with my STM32F769I-Eval kit.I made two task with different priority and print global variable with semaphore.When I run my code, terminal print decreased value every time.  I don't know why. Here is my code.int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MPU Configuration--------------------------------------------------------*/ MPU_Config(); /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_USART1_UART_Init(); /* USER CODE BEGIN 2 */ /* USER CODE END 2 */ /* USER CODE BEGIN RTOS_MUTEX */ /* add mutexes, ... */ /* USER CODE END RTOS_MUTEX *

The RM0440 ch. 28.3.18 rev7 mentions on page 1128:> An interrupt is generated if the BIE bit in the TIMx_DIER register is set. A DMA request can be sent if the BDE bit in the TIMx_DIER register is set.Unfortunately, the DIER register does not contain a BDE bit. Additionally there is no DMA line available for the break (unless it uses the TIM_TRIG line).Is this sentence a remnant from initially planned features, or are the other parts just missing?

I cannot load the image into the SD card of the STM32MP157F-DK2 board.I set the switches to OFFI start the board that starts in BOOT FOR FLASCHING (only the LD4 led is on steady red)Through the terminal or graphical STMProgrammer I start the download of the image (file: FlashLayout_sdcard_stm32mp157f-dk2-trusted.tsv)It loads Partition ID 0x001 correctly, finishes loading Partition ID 0x003, then the board exits the BOOT FOR FLASHING mode (the blue LD8 LED lights up and the LD6 LED flashes red) and the software returns to me Reconnecting the device ...

Setting the FX_STANDALONE_ENABLE flag should disable all ThreadX specific code when building a FileX project. However there is actually some code related to ThreadX timers that is generated within a USER CODE section, defining the FX_STM32_SD_CURRENT_TIME. Does anyone know why that may be, and more importantly what would be the correct definition of this macro without ThreadX?

Hello.I have the latest version of Excel and when I open the .xlsm the following message appears: We have found a problem with content..... ¿Do you want to recover.....If I say yes all the formulas are broken. (I have the macros enable and the file is trusted)Any ideas about how to solve this?Thank you in advanceJoaquin.

I have a Nucleo F746ZG board with 8742A Phy. I am just trying to ping the device. I compiled and ran the LwIP example. The device IP doesn't show when looked at from the terminal (arp -a). JP6 and JP7 are on and the board is on stock configuration. On board, LEDs indicate that the link is connected, ethernet port LEDs are also working. What might be the problem with this issue?

Very annoying! I will be working on a file open in the default editor, along with other files open, and on the next compile I get a lot of errors because the original place, a line or group of lines, I was editing or copying now appears at random location(s) in the same file or other files that were open. This has actually been going on for sometime but I thought it was something I was doing wrong so I did not report it. It is not difficult to fix since it so obvious when it happens. It is completely random with respect to how much of the copied text, or the line being editted, or where it ends up and in what file. Sometimes it is complete code segments or a single character.OS: Linux 5.15.0-60-genericDISTRO: LMint 21 Cinnamon V5.4.12STM32CubeIDE V:1.11.0Build 13638_20221122_1308(UTC)

 stm32mp157a-dk1 board

Good morning.....I have a CubeIDE prj with .ioc and main. All compiles fine. I have created a second file with a main function (gfsk.c). I have excluded the original main.c for build. I would like to know when I go back into the .ioc to make a small change how do I get it to update the new gfsk.c file??? Where is the pointer to this in the IDE? I am finding that if I update the .ioc file in continually updates the old main.c file.

Hi, I am using STM32 F767Zi and tried this tutorial to use it as an USB host ***. I followed the steps but I always end up in Use Case _USER_CLASS_ACTIVE. I tried different USB devices but it's always the same. Does anyone have an idea how I can solve the problem or how I can look for the problem? Thank you!Post link deleted to adhere community guidelines.

I am trying to add SAIA support to my CubeIDE project on a Nucleo-H723. I have configured SAIA as Master with Master Clock Out and expect to see MCLK, FS, SCK at pins 14, 16, and 18 on CN9, but there is no output. Shouldn't these signals appear after initializing SAIA?

After running into some issues during an OS migration, I ran a firmware update on a nucelo_h743zi board using the stLink utility. After this I ran into many issues with flashing and debugging. While I can flash the board with openocd v11, it has some errors which I have attached. I also cannot debug the board using gdb or connect to it using stlink utility. Is there a way to revert the firmware to it's old version (V2.J2.MX?)