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I use the ST25DV04KC. I initialize the chip and write to like the eval software the CCFile to Block 0 this works. In this state the chip is CCFile unlocked, the NFC-Tag protocol is selected to Type5, RFMngt_Dyn is in NFC off mode (0x01) and I2C secure session is open. After all this, the function NDEF_DEMO_Write_URI_URL() is called. Same function like the Demo-Eval. But no register is written. On I2C, I receive at write to the EEPROM, NAK.Only the first Block (0) is filled with values.If I restart the microconroller with power ON->OFF->ON, It works. And in EEPROM is the NDEF URL and works with the smartphone.Now also Block (1...+) and more are filled with valuesSomething is there witch is blocking the chip by configuration. Is there something to pay attention to by configuring the chip?

Wrong ADC3 Oversampling Ration selection for STM32H743. It is for STM32H72xx and STM32H73xx, it should a numeric value from 1 to 1024 (RM0433 page 1014). The generated code will generate an compilation error : 'ADC3_OVERSAMPLING_RATIO_2' undeclared (first use in this function); did you mean 'IS_ADC_OVERSAMPLING_RATIO'?#if defined(ADC_VER_V5_V90) /** @defgroup ADC_HAL_EC_OVS_RATIO Oversampling - Ratio * @{ */ #define ADC3_OVERSAMPLING_RATIO_2 (LL_ADC_OVS_RATIO_2) /*!< ADC oversampling ratio of 2 (2 ADC conversions are performed, sum of these conversions data is computed to result as the ADC oversampling conversion data (before potential shift). Applicable for ADC3 on devices STM32H72xx and STM32H73xx */ #define ADC3_OVERSAMPLING_RATIO_4 (LL_ADC_OVS_RATIO_4) /*!< ADC oversampling ratio of 4 (4 ADC conversions are performed, sum of these conversions data is computed to result as the ADC oversampling conversion data (before potential shift). Applicable for ADC3 on de

Hi, I did a PCB based on the ALED6001 and using the eDesign Suite.I want to use analog dimming only and wired it up similar than in the STEVAL-ILL072V1.Best case i wanted to achieve a 0-100% dimming but it was clear that, due to that curve provided in the datasheet that would not the case. That wouldn't be a big problem if I won't face the big instabilities at the two discontinuity points at 260mV and 1.2V. At the lower end the LED flickers and the coil I am using does a humming sound. At the upper end the brightness increases suddenly to full brightness.Does someone have an idea how this could be solved in a MCU-less design?I tried both topologies (boost and buck-boost) by modifying one board. Seems the eDesign solution (buck-boost?) works a bit better. Maybe because of the proper calculated compensation circuit?I attached the schematic. The red lines on the second sheet are my modification from the one topology to the other.Thanks in advanceDavid 

We are currently using Flutter for our NFC App development, and used the 'Flutter_nfc_kit' package for NFC Connection. We have successfully implemented the Android's workflow. The workflow consists of :1) Get UID2) invoke custom command of GetRandomNumber3) Use the GetRandomNumber values to encrypt the password that is going to be entered4) invoke custom command of PresentPassword with the encrypted password5) Retrieve the data from the password-locked memory In Android, it all went well but when we built the iOS version, we encountered some errors. The code that we used for the Android device for the transceive bytes format are exactly the same, but in iOS,it throws an error of : Tag Connection Lost (when I didn't input the IC Mfg. Code) and Stack Error (when I input the IC Mfg. Code). This is the example of the code that we sent for the 'GetRandomNumber' command =>[0x20 (request flags), 0xB4 (OpCode), 0x02 (IC Mfg. Code), UID]. I have set up the iOS info.plist file

Hello team, I am using the default generated code on STM32H725 uC for ADC1. I am using it in polling mode. The value what I get in ADC DR is 10 times less than the value that I expected. I tried this for various voltage range on its external pins. I am using the ADC1 in single end mode. Also, I am using a external ref of 3.3V Thank you in advance.

I have been trying to resolve the issue for receiving the CAN interrupt but not able to find the root cause.Hardware is a custom board micro is STM32F405RGT6 i am using CAN1 for CAN communication with 500 Kbps.Able to transmit message CAN message using polling method. I am transmitting CAN messages from Peak CAN tool but not able to hit the receive interrupt.Few observations after reset, the DBF bit is set, will it be a problem?1.2.I have the Tx interrupt enabledBut the TMEIE bit is not set after calling the MX_NVIC_Init(void)Coming to the actual problem the FMPIE0 bit is set and i am sending the messages at 1sec interval FMP0 is always 0. What is the problem? int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE BEGIN 1 */ TxHeader.IDE = CAN_ID_STD; TxHeader.StdId = 0x7df; TxHeader.RTR = CAN_RTR_DATA; TxHeader.DLC = 8; TxData[0] = 8; TxData[1] = 2; TxData[2] = 1; TxData[3] = 0xd; TxData[4] = 0; TxData[5] = 0; TxData[6] = 0; TxData[7

Some people might ask: "how to connect a debugger on Portenta H7?"the Portenta H7 MCU module does not have a debugger connector (just tiny solder pads)you need the Breakout Board, or the Vision Shield (both provide the debugger header)STLINK-V3 comes with a ribbon cable which fitsusing the STLINK-V3MINI: you need an adapter (or similar cable to build)Here, how the debugger connection looks like:Remarks:Even the debugger has a T_VCC pin - it does not provide power for the target! Instead, it is used in order to sense (measure) the target VDD so that debugger can adapt the debug signals (e.g. 3V3 vs. 1V8 on MCU).The GNDDetect signal is not signal ground (use one or the two other GND). It is used by debugger to realize if there is a cable connection to the target.T_VCC and GNDDectect have to be connected: otherwise, the debugger will complain all the time that it does not find the target.SWO (used for SWV, the SWO Viewer, for debug messages via debugger), could conflict with a pin functio

Hello,  I'm working on a project for a Nucleo board for which I'm trying to use VSCode. I've installed the relevant extensions, and building and running the project had been working, but suddenly (after changing the .ioc file in CubeMX) it stopped working (even when I undid my change); now, every time I build or clean build, I get the error: collect2.exe: error: ld returned 1 exit statusMAKE.EXE: *** [STM32Make.make:211: build/CTS-SAT-1_FW.elf] Error 1 The file in question here seems to say this: $(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) STM32Make.make    $(CC) $(OBJECTS) $(LDFLAGS) -o $@    $(SZ) $@ Alas, this is entirely incomprehensible to me. Can anyone help me figure this out? Thank you!

Hi all,Some of the ST BLE microcontrollers now support BLE 5.4. Can anyone point me out any code example or application note with Encrypted Advertising Data feature that is specified on the latest BLE specification?I am working with STM32WB series...Regards.

Problem:There are a significant amount of threads where code is pasted as plaintext a thread. As an example, this one, where the user clearly searched for a way to format it as code but couldn't find how:https://community.st.com/t5/stm32-mcus-products/failing-to-read-useful-data-from-adc-of-stm32f411/td-p/631535The underlying issue is that formatting a code block is hidden behind the "..." in the editor.This is despite having more than enough room to accommodate such an important feature.Suggesting:Consider promoting the code formatting to the main toolbar and relegating the following near-useless features to the "..." abyss:Spoiler tags. (Why is this a thing at all?)Insert video.Change font.Change font size.Chang text color.Run macro. (What even is this?)

Hello. I´m making pcb design for wireless temperature probe based on stm32wb35 and sensirion sht45. I´m so limited in dimensions of PCB so i´ve decided to make this design only with HSE crystal. I found that it´s possible to configure BLE operations without LSE crystal. It possible to configure an I2C device also for this hardware?Thanks 

I am struggling to get ethernet to work on my custom PCB H723. I have succeeded develop an ethernet LWIP application on H723 NUCLEO board though. I have more or less copied the schematic of the NUCLEO board, however when running the LWIP_init function it ends in the while(1) error handler loop. I am also using the LAN8742 IC with RMII, 25MHz external osci. When i power my board the LED2 is always lighting up. When I connect a ethernet cable LED1 will light and blink for activity. Anyone have experienced similar? Or have any thoughts or go-to's? I am out of ideas.   Friendly regards, David   

Hello ST Community, I am using a VNHD7008AY ICs to control a brushed motor (XDW043003-01, LowSide-Mosfets: SIR606DP-T1-GE3CT)The PCB is supplied with 24VDC. The application has the problem, that the motor can be moved by the user both in and against the turning direction.To protect against short overvoltage cases, where the user moves the motor in turning direction, I am using a zener diode (BZG04-22-M) connected to Motor_VCC and Ground. With Software (simple PID Controller) I can detect the user moving the motor faster than expected and reversing the polarity of the motor, which slows down the movement until the actual position is again equal to the expected position. Therefor the application has no problem with overvoltages during normal operation. The problem arises, when the PCB does not have a supply voltage. When the motor is moved, a voltage is induced due to the nature of brushed DC-Motors through the body diodes of NMOS and PMOS from Motor_VCC to Ground.Motor charact

I want to connect a B-OMV-Cam module to a nucleo board H7A3ZI-Q. When I did my research I found that the only board commonly used with the cam module is the DISCO discovery board. Is the cam module meant for specific bards and if not, how can I connect it to a nucleo board ? I tested neural networks for computer vision in the MX Cube AI ide and got the H7A3ZI-Q as a suggestion.  Thank you for your responses !

Dear ST,I am developing an end device to my solution with the ability to report some measured values every minute.The device successfully enters and exits a standby status and reports back.Now I am trying to devise some kind of network management to the devices (join new networks, leave old ones, detect if there is a coordinator in the network etc.). They way I achieved this in my non-sleepy devices was through route discoveries to the coordinator. If a route is found, it is still a valid network. The problem arises in my sleepy end devices where some request responses (including a Route Discovery) seem to be ignored and the IPCC triggers the callback always with a success status.As I understand it the messages are pooled and managed by the parent, but I thought it would still trigger the callbacks when received even if blocking the application.  I tried to set the RxOnIdle capability to true, but this seems to not fix the issue.Then I thought it was because of the RFD firmwa

Gm, I am creating a scrollable list of items, and we want have an image for each one of the items in the list, I have created a code that always prints 12 images depending on the scrollContainer.getScrolledY() value. This is for memory saving. To display the image i use BMPFileLoader.cpp from the touchGFX documentation.And i have created a 6MB cache in FrontedAplication.cpp which can print my image like 21 times.(I use the same image for debugging but later on they will have different images)This is how I update the images:I call lthis code every 50 ticks.And everything works perfectly but once a amount of ticks has passed, this is what happens to the images:They dissappear, and i don't know what is causing this. I'd like to debug or be able to see whats being stored in the cache or if clearCache() is really removing the images from the cache, but I have no way to do this right? As I said before, this happens after an amount of ticks have happened as if i call this every

Hello,I'm testing a prototype board with STM32MP135FAE7 and MT41K256M16TW-107 DDR3L, using STM32DDRFW-UTIL firmware.DDR_Test_Random fails if memcpy (DDR -> DDR) is used inside this test (this is the only one test using memcpy) but not if I'm copying memory using plain C loop with pointers to volatile uint32_t or volatile uint64_t. Failure type seems pretty consistent: 4 consecutive bits (one, always the same nibble) are "moved" from one 16-bit word to the next one. As far as I know (but I'm not 100% sure) this particular PCB data traces are uniform and relatively short (~28 mm), though one detail that might be more unusual is that order of data bits between MPU and DDR is swapped to help with routing.I've used default memory settings from this example (DDR model is matching), I've tried also relaxed timings from CubeMX and lowering memory clock but this issue was persistent.Do you have any hints how to debug this issue and what could be possible cause? 

Hello,I am attempting to set up a timer PWM output to have a set 600s period with a variable duty cycle based on a potentiometer input using an STM32G030J6 MCU.  I've setup PWM output timers before will little difficulty but this time I'm having a difficult time calculating the Prescaler and ARR values to accomplish this long of a period.  Are the timers just not capable of doing this long of a period and I need to us a different method to create this signal?

Using TIMER4 - CH1 as PWM generator with DMA1 - Channel1 (memory to peripheral, circular mode, Half Word), the code generation produces this output in file tim.c:                where (see red arrow) it uses DMA_REQUEST_TIM1_CH1 instead of DMA_REQUEST_TIM4_CH1.Obviously, this way the PWM function doesn't work properly. By manually changing the value, it works fine!I've tested the same settings on different timers but seems that only TIMER4 is affected.Has anyone else noticed the same problem?  

Why ? Why can I use more than 48KB RAM? Thanks!

Hello,I'm working on a STM32F103V8. The TIM3 should decode the signal of a rotary decoder.When I turn the rotary decoder clockwise the counter of TIM3 goes up.When I turn the rotary decoder anticlockwise the counter of TIM3 goes up.The MX_TIM3_Init is auto generated: static void MX_TIM3_Init(void) { /* USER CODE BEGIN TIM3_Init 0 */ /* USER CODE END TIM3_Init 0 */ TIM_Encoder_InitTypeDef sConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; /* USER CODE BEGIN TIM3_Init 1 */ /* USER CODE END TIM3_Init 1 */ htim3.Instance = TIM3; htim3.Init.Prescaler = 1; htim3.Init.CounterMode = TIM_COUNTERMODE_UP; htim3.Init.Period = 65535; htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; sConfig.EncoderMode = TIM_ENCODERMODE_TI12; sConfig.IC1Polarity = TIM_ICPOLARITY_FALLING; sConfig.IC1Selection = TIM_ICSELECTION_DIRECTTI; sConfig.IC1Prescaler = TIM_ICPSC_DIV1; sConfig.IC1Filter = 1; sConfig.IC2Polarity

Hello,I'm currently developing an application on a STM32H753VT6 with touchGFX and I have an issue with textAreas. Just to say that I'm using my personnal font ( size : 20/24/34 px). Each textArea has just one wildcard with a 17 chars size buffer. I'm sending text through a terminal on my PC to change wildcards values.In some cases, I don't know when, one letter is not totally displayed even if I invalidate all possible areas. Here are some pictures to illustrate the problem :As you can see, it is always the second character that is partially displayed (but sometimes there is no problem, for example, adding a space " " before "APPEL EN COURS" works)Any idea ?Regards,AJT

Hello,I am trying to debug a code that are running in core0 and core1. I inserted a breakpoint inside main_core0() and main_core1() infinite loop, but the debugger does not stop on breakpoints. In the core2 the debugger stops on breakpoint.I am sure that those codes are running because the LEDs that should be blinking by those codes, they are blinking.I am using a SPC58NH-DISP board and the new AEK-MCU-SPC5LNK dongle configured to OpenOCD protocol.

Hi all,I am looking for a way to enable CTE on stm32wb55,but i didn't find a function like      "gap_set_connection_cte_tx_param()" to config CTE.I know that stm32wb55 support BLE 5.1 but i cant find a relevant function in ble_gap_aci.c .Does STM32WB support CTE or not?If it does,how to enable cte on stm32wb55?Thanks.

Hi, I'm trying to build TFM example applications from the B-U585I-IOT02A directory to work on Nucleo-U545RE board. THe documentation says it's possible. I have updated the project settings, but I'm getting errors from the STSAFE library: C:/Work/OldCourse/SecureBootTesting_ST/Projects/B-U585I-IOT02A/Applications/TFM/TFM_Appli/Secure/Src/stsafea_service_interface.c:92:51: warning: implicit declaration of function '__HAL_RCC_GPIOF_CLK_ENABLE' [-Wimplicit-function-declaration] 92 | #define STSAFEA_VREG_GPIO_PORT_CLK_ENABLE __HAL_RCC_GPIOF_CLK_ENABLE | ^~~~~~~~~~~~~~~~~~~~~~~~~~ C:/Work/OldCourse/SecureBootTesting_ST/Projects/B-U585I-IOT02A/Applications/TFM/TFM_Appli/Secure/Src/stsafea_service_interface.c:301:3: note: in expansion of macro 'STSAFEA_VREG_GPIO_PORT_CLK_ENABLE' 301 | STSAFEA_VREG_GPIO_PORT_CLK_ENABLE(); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ C:/Work/OldCourse/SecureBootTesting_ST/Projects/B-U585I-IOT02A/Applications/TFM/TFM_Appli/Secure/Src/stsafea_service_interface.c:9