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When generating a series of pulses in PWM mode with the series duration controlled by gated slave mode, final state of output depends on the timing the gate signal goes down.Is there anyway to force the state to low, so that the final pulse is not stretched? Short pulse is okay.

Hi! I'm trying to program the ST25R3911B-DISCO but I immediately stopped because I can't find the drivers to use it (win 10 64bit).I tried to use the GUI to update the firmware but it generates an error and you ask me to update the drivers, following the procedure but each has no effect.He wanted to know if there was any example of a project based on ST25R3911B-DISCO to read nfc tag through the "AIR Embedded workbench" program.Thanks a lot.

error description:I wrote a function to change the UART parameter! After using this function, the UART parameter worked as installed but when the data was sent, the UART interrupt function changed a global variable of I am back to 0!Everyone can see more in the video link: https://drive.google.com/file/d/1rr3l6uq9uWrCteFjBGVlcXUlvGNMlUly/view? usp = sharing

I have the discovery boards for the ST25DV and noticed a much higher current draw than I expected. In power down mode, (LPD = 1), the board was still drawing ~165uA.Looking at the schematics for the board, there is a 20k pullup resistor on the GPO line.This makes sense on the open drain versions of the chip, but this board has the 12 pin, CMOS output style of chip on it. After I removed the resistor, the current draw dropped within the bounds specified in the data sheet.Just a heads up, might want to consider revising the board to omit the resistor R1.

First time using a STM32F4 for I2S.I don't use your libraries as I want to understand the cpu at the register level.I set up the I2S PLL and enable the I2S clock.When I start to write to the SPI4 registers, they are not accepting the data. I have found this behavior before when the clocks were not enabled but I believe I have properly done that.I have a simple test I am using to validate my understanding - please see the code below.Please comment as to why writes to the SPI4 registers are not being taken.void Do_Audio(void) { int Num_Audio_Samples = sizeof(AA) / 2; int I = 0;   RCC->APB2ENR |= RCC_APB2ENR_SPI4EN; // turn SPI4 clock on   Config_STM_Pin(GPIOE, 2, 5, H_GPIO_Alt_Function, H_GPIO_Output_PushPull, SlewRate_Medium, No_Pull_Up_or_Down); // I2S_Bclk Config_STM_Pin(GPIOE, 4, 5, H_GPIO_Alt_Function, H_GPIO_Output_PushPull, SlewRate_Medium, No_Pull_Up_or_Down); // I2S_LRClk Config_STM_Pin(GPIOE, 6, 5, H_GPIO_Alt_Function, H_GPIO_Output_PushPull, SlewRate_Medium,

Hello,I'm trying to get DHCP working as an initial step in using LwIP. Have generated project with CubeMX and now I'm catching the problem. Using Wireshark, I can see that DHCP Discover packet is sent, but no response is received. IT seems that something is wrong with the packet. As a reference, I also captured DHCP packet from my laptop that does work and gets response.Any advice what is wrong ?Thanks in advance,regards,Rob.Packet from STM32F439 :No. Time Source Destination Protocol Length Info 3006 49.570106 0.0.0.0 255.255.255.255 DHCP 350 DHCP Discover - Transaction ID 0x5851f42d   Frame 3006: 350 bytes on wire (2800 bits), 350 bytes captured (2800 bits) on interface 0 Interface id: 0 (\Device\NPF_{A7ACDF3A-ED3E-4FAD-B7B4-533C6D411BF2}) Encapsulation type: Ethernet (1) Arrival Time: May 1, 2019 10:37:34.873435000 Srednjeevropski poletni �?as [Time shift for this packet: 0.000000000 seconds] Epoch Time: 1556699854.873435000 seconds [Time delta from previous captured fra

Dear, On https://touchgfx.zendesk.com/hc/en-us/articles/205443982 the variables textCounterBuffer and TEXTCOUNTER_SIZE are used in snprintf.  If I'm not mistaken, those variables are not available in TouchGFX 4.10.0. Is that correct?Thanks,Bart

It seems there is a mistake in STM32Cube\Repository\STM32Cube_FW_L4_V1.13.0\Projects\STM32L4R9I-EVAL\Examples\OSPI\OSPI_NOR_MemoryMapped project, the STM32L4R9I-EVAL board flash chip is connected in OCTOSPI1, but in this project, the instance is OSPIHandle.Instance = OCTOSPI2; . This project can run successfully, but actually it is accessing external RAM, not external FLASH. If we change the instance to the correct OCTOSPI1, it will run into error handler very soon. Please provide correct example code, thanks.

what's the meaning of the "SN",readed from "STM32 ST-link Utility"I read the UID from the Flash addr 0x1FFFF7E8, i found out the SNis not the UID. please tell me where is the SN 'data from? tks

I feel this would solve a couple problems. First, it would allow for more energy to be returned to the detector, increasing the signal to noise ratio and second, it would allow customers to focus on more specific areas. My questions are - can this be done? (imported question)

I'm running CubeMX 5.1 with FW_F4 V1.24.0 and Atollic TrueStudio 9.3.0. I have eleven RTOS tasks defined in CubeMX, but only one is actually invoked with its StartTask routine. As long as the priority on the task is osPriorityNormal(0) or lower, the code runs on my STM32F407 Discovery board. If I assign a higher priority (AboveNormal, High, RealTime), the code halts in the Hard Fault Handler routine. The actual fault is a Bus Fault, precise data access violation. This version of CubeMX/FW_F4 requires the use of CMSIS RTOS.Has anyone else run into this problem? As a workaround, I'm limiting the tasks to the priority levels of Idle, Low, BelowNormal and Normal.cjwilde

The STM32L100/151/152/162 Reference Manual says that there is a BRR (bit reset register) for Category 3 devices, when, in fact, there isn't. This is a known problem, please see:https://community.st.com/s/question/0D50X00009XkWybSAF/brr-register-does-not-work-for-stm32l100rc-and-stm32l152rc-boardsandhttps://community.st.com/s/question/0D50X0000APZncVSQT/stm32l151rc-gpio-brr-register-missingBut in addition to the documentation error, the driver code also doesn't work because it tries to access this non-existent register to clear GPIO bits. This from the stm32l1xx_ll_gpio.h code generated by STM32Cube MCU Package for STM32L1 Series, v1.8.1, starting on line 934:__STATIC_INLINE void LL_GPIO_ResetOutputPin(GPIO_TypeDef *GPIOx, uint32_t PinMask) { #if defined(GPIO_BRR_BR_0) WRITE_REG(GPIOx->BRR, PinMask); #else WRITE_REG(GPIOx->BSRR, (PinMask << 16)); #endif /* GPIO_BRR_BR_0 */ }A user can fix the issue by simply using the BSRR register instead of the BRR register. (commenting

I am attempting to encode some images as a video file on the STM32F769NIHx chip. A fairly short, but lossless video file with a very low framerate. I have not found any good resources on how to do so. The framerate will be about 5fps so I don't think that I will need very much compression. It just needs to be accepted by popular/widely available videoplayers as a valid video format. I have already attempted using FFmpeg, but the documentation online does not provide a way to transfer FFmpeg source code to a bare-metal application. I should say that I am doing all of this in embedded C. The closest solution that I have found is in the following link: https://www.jonolick.com/home/mpeg-video-writer. However, this format is still too lossy and fast (24fps at the slowest).

In UM1691 rev2, paragraph 4.5.1 "Sanity check of the board with firmware for the GUI", it says "Connect the board to a 5 V - 45 V DC power supply". So I connected it to a 6V PSU, but the board does work properly. What is wrong?NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.

Hi, I'm trying to test the openAMP_TTY_echo from STM32Cube_FW_MP1_V1.0.1. It compiles ok. I try the installation from : https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP1_boards/STM32MP157C-DK2/Develop_on_Arm%C2%AE_Cortex%C2%AE-M4/Modify,_rebuild_and_reload_a_firmware#but I fail to get the info from the "debugger" in [Upload and start the firmware].It wants "OpenOCD Setup" but there is no info on the wiki about that. So it loads the firmware ok but then failed with gdb/OpenOCD... My openAMP_TTY.cfg is empty!ThanksAnthony Harivel

Hi,I am using the OCxRef-clear + comparator to do cycle-by-cycle current regulation and it is working as intended, limiting the delivered duty-cycle despite the value set in software, but I also need to know in software if this is happening and know the real duty cycle delivered to the load, how can I do this?My first thought was to set another channel of the same timer as input compare and link it to the same comparator output, but none of the other channels of this timer are linked to the comparator, so I thought in 3 other possible ways, each one of them not ideal for a reason:Enable comparator interrupt and get the timer value by software, but this would not work properly as it depends on the interrupt latency and priorityConnect the comparator GPIO output to the IC GPIO input, but this solution is ugly and is prone to hardware failureRun a second timer in parallel synced with the first timer (seems to be possible thru timer sync mechanisms) and use its IC channel linked to the com

From STM32H7 libraries v1.3.2 to v1.4.0 UART_FLAG_RTOF was removed from stm32h7xx_hal_uart.h.Any good reason why?I am just gonna use USART_ISR_RTOF instead but the question is why would you do that? Was it intended?

Hello, all!I'm ​looking into the STM32MP15 family. It seems to offer me everything I need, but I'm not sure about consumption, and can't understand the data sheet fully in this regard. For minimal consumption that will still allow the MPU to continue working normally (without boot) after wake, it seems I need the standby with RAM retention.1. Is this really the most efficient mode for this?2. What is the consumption in this mode, in a way that will allow it to be woken by RTC and pin interrupt? It seems it's 90uA, but I'm not sure.​3. How long does waking from standby mode take?4. Does waking from standby mode allow the MPU yo continue working as if after sleep, with all volatile memory data it had previously?Thanks!​​​

Dear Sir,I am working with customer using TouchGFX.Because I am BSP porting engineer, I don't know TouchGFX application in detail.My customer is tring to implement custom Slider widget with number indicator of slider image.But, there is flicker problem whenever slider is moved.Please could you check that where is this problem ?Best Regards,JunBeom Kim / EmbedCoreTech.

Hello,I'm trying to generate some sample data in the model.My problem is, it is a little bit tricky for a beginner - so I want to ask if there is any guide in text written, would be awesome, because videos are very quick.=======At the moment I have added a "Circle Process" in TouchGFX and a button which calls a virtual function.Now what are the exact steps to iterate the value of the circle process (by tick - not by pressing the button :) )?Some sample code would also be great, like:1) Edit ScreenView.hpppublic: ... virtual void setvalue(); ...2) Edit ScreenView.cpp... void MainView::setvalue() { presenter->updatevalue(circleProgress1.getValue()); } ...3) Edit ScreenPresenter.hpp... public: void updatevalue(int value); ...4) Edit ScreenPresenter.cpp5) Edit Model.hpp6) Edit Model.cpp7) Edit ModelListener.hpp I have seen the PoolDemo, and I'm trying to use this code, but it would be much easier seeing the code for each file in one text, for me.thank you for your help! :)best regards,

I recently switched an older project to CubeMX 5.1.0 and the F3 firmware package V1.10.0. We used freeRTOS and tim3 as the timebase source as tim1 and tim2 are already in use. The program does not pass the initial timebase configuration any more and the call of HAL_TIM_IRQHandler(&htim3) in the TIM3_IRQHandler(void) has disappeared. When using any other timer the call is generated and it works if I manually add it in the user code section, could it be that this is a bug in the code generation?

*(__packed uint32_t *)pDest = USBx_DFIFO(0U);The compiler generates LDM/STM instructions.

Hi, i have donwload the STM32CubeExpansion_NFC5_V1.3.0 but in the RFAL implementation there aren't the function rfalNfvPollerSelect and rfalNfvPollerReadSingleBlock (rfal_nfcv.c), i tried to use the old version ( rfalNfvSelect and rfalNfvReadSingleBlock) but dosn't work.I read this old post: https://community.st.com/s/question/0D50X00009XkWNXSA3/st25r3911b-calls-to-readwrite-block-after-successful-inventoryget-idbut there isn't any link to the new version of the library.Can anyone give me the updated library link or can share thediff/patch ?Where can I find STEVAL-SMARTAG1 reading examples with the X-NUCLEO-NFC05A1?ThanksFrancesco

Hi, I'm Hill-Rom employee and working on UI software. On the device LCD screen if leaving a screen idle for a while, sometime will observe some random lines showing on screen. Not every time idling on the same screen can reproduce the issue but when the problem comes it's always the same lines appearing on the screen. Can you help me find out the problem?​