STM32 MCUs Products

Hi All,I have a peculiar observation in one of our legacy codes, wherein I do not observe RX FIFO 1 callback being triggered.I observe hfdcan1.Init.ExtFiltersNbr is set to 0 and HAL_FDCAN_ConfigFilter() is NOT called. I am unaware if this is purposely done to use all available filters.It also appears to me that the way the CAN driver is set-up / Initalized, microcontroller is accepting all CAN messages in FIFO 0 even when a line of code is added in initialization to enable the bit 4 (i.e., FDCAN_IE_RF1NE) of CAN IE register. static void MX_FDCAN1_Init(void) { /* USER CODE BEGIN FDCAN1_Init 0 */ /* USER CODE END FDCAN1_Init 0 */ /* USER CODE BEGIN FDCAN1_Init 1 */ /* USER CODE END FDCAN1_Init 1 */ hfdcan1.Instance = FDCAN1; hfdcan1.Init.FrameFormat = FDCAN_FRAME_CLASSIC; hfdcan1.Init.Mode = FDCAN_MODE_NORMAL; hfdcan1.Init.A

Hello,I'm having an issue while programming a small section of FLASH memory during runtime of my device.Our device executes its program from FLASH memory. In-addition, we reconfigured the systick timer to run at 20kHz and this is the heartbeat of our program. Every 1/20kHz secs, the device reads the user input and then updates some signal outputs.Occasionally we need to save state so that we can recall certain settings in-case of a loss of power. To do this, we set a flag and then in the main while() loop we initiate a write to flash memory. We only need to write 64 bytes and we do it using a wear-leveling technique. I was expecting this to happen seamlessly in the background but I was surprised to find that it interrupts the flow of the systick code (even though this is a high priority interrupt). This results in a glitch in the user interface that is noticeable in certain scenarios.I've used a pair of GPIO pins to show what happens:

Hi, I'm trying to write an algorithm to load into external memory in QSPI_Dual_mode MT25QL512A for KEIL. I followed this instruction. The algorithm works BUT! when the firmware exceeds 90040001H an error occurs during verification. Smaller programs are  flashed and work fine.Project algorithm  Programming External Flash with STM32 Devices  

The configuration of Cubemx is as followsThe configured address is the address of SRAM1-3，given this configuration, why does "Strongly ordered memory" cause a HardFault Thanks. 

Could someone clarify if the Nucleo-F334R8 boards can operate two interleaved channels with using peak current mode control, each channel would need its own slope compensation.  I understand the board can do a single phase and has 3 DACs, but I see it has only one internal op-amp.  I'm still on the steep part fo the learning curve here. We're stepping up from simpler analog voltage mode control and I'd really like to insure this board by itself will do that job or if we need a more powerful board to do both channels with one controller.  -- Thanks

I am using `HAL_SPI_Transmit_IT()` API to transmits 6 frames. The TXP interrupt correctly fires and feeds the TXDR register however after feeding the last frame into TXDR the EOT never fires, actually no interrupt fire after the last frame is feed.Frame Size: 9 bitsFiFo threshold: 1 All the interrupts that were enabled remain enabled including the EOT. (EIR=0x328)TSIZE: 6 (does not change)SCLK: 125KHzSource CLK to SPI: HSI (16MHzPrescaler: 128The system clock is running 160MHzIt's worth noting polling mode also failed because EOT isn't being set either.In other drivers we use HAL_SPI_Receive_DMA() and it works as expected. I reviewed  the STHAL driver but I do not see anything obvious wrong.What criteria, besides TSIZE, triggers the hardware to set the EOT flag?

Hello STM32 community,I'm facing an issue with my STM32L562VE MCU where I'm not receiving SPI clock signals whenever I attempt to transmit or receive data.Here are the specifics of my setup:MCU: STM32L562VESPI Mode: 0Data Word Length: 8 bitsMain Clock Frequency: 80MHzSPI Clock Frequency (after prescaler of 2): 40MHzMCU is connected to two crystals:LSE (Low-Speed External) crystal: 32kHzHSE (High-Speed External) crystal: 48MHzClock Source Used: MSI only (despite having LSE and HSE crystals)I've also uploaded the .ico file and other related files for reference.Despite these configurations, I'm not receiving the expected SPI clock signals. I've checked my connections and configurations, but I haven't been able to identify the root cause of the issue.Has anyone in the community encountered a similar problem with SPI clock signals on the STM32L562VE MCU? Any insights, suggestions, or solutions would

Hi, I have a problem with a module based on STM32, more precisely it is a module that collects data from the ebike, i.e. temperature, speed, etc. This system is powered by an external 12 V converter, which reduces the voltage from approximately 80 V (20S battery). This converter is a ready-made module from Aliexpress. Coming back to my module, I don't know why, but after a few turn on/off cycles, the module stops working and burns out the STM. I have two linear stabilizers in the module, which respectively reduce the voltage to 5 V and 3.3 V. Is it possible that during startup (applying voltage to my module) voltage spikes appear somewhere, which burn the STM? I added the project schematics.

Hi! I'm trying to use the following function:HAL_UARTEx_ReceiveToIdle_IT(&hlpuart1, lpuartRXbuffer, 64);I've seen a few example codes using it but otherwise google shows nothing when I search for it. I think I should get some callback but I cannot figure what should it be. I tried the following: void HAL_UARTEx_RxEventCalllback(UART_HandleTypeDef *huart, uint16_t Size) {   }But there is no response.I'm new to the STM32 software environment, coming from Arduino and Atmel so any advice where to find such information helps a lot.

Posted on December 20, 2015 at 20:58Someone knows how to implement a circular buffer with HAL Drivers F1? 

I'm trying to calculate the period of DMA ADC interrupt triggered when the destination buffer is completely full. As of my understanding the period is:T_dmaDone = [(T_sample + T_conv) * sampleCount * channelCount] / F_adcIn my case each rank is set to T_sample = 41.5 cycles, the conversion is fixed to T_conv = 12.5 cycles, sample count is 100 per channel, channel (as well as ranks) count is 14, and F_adc = 12 MHz. The resulting period when DMA is done and buffer full is T_dmaDone = 6,3 ms. However, after inspecting the ADC_DMAConvCplt() and placing GPIO pin toggle directly, without additional processing done inside HAL_ADC_ConvCpltCallback() user callback, I measured T_dmaDone = 4,64 ms.If I try to scale the measurement via multiplying samples taken per channel by a factor of 10, also the measured period scales linearly. Where is the error in my calculation? Is the provided equation valid?

Hello,Comparator in STM32G4 is very fast. some glitch which is detected by COMP (during commutation PWM).The overcurrent detection using internal comparator triggers below the theory (40A insteand 100A for example) I'm having trouble implementing the blanking mode in COMP with 3 timers (1 for each phase) .Do you have an example or a note application to implement this mode?thanks in advance.

Hi, could someone explain me what is the difference between wake up and alert in RTC?For example the UM1749 provides information about RTC Alarm functions (section 39.2.8) and wake-up functions (section 40.2.2)When should I use the wake-up and when the alert?

Hi Team,We are using STM32F072RB MCU with discover EVM boardWe are using STM32CubeIDEWe are using SPI1 and SPI2 as slave mode configuration Query: we observed that the FIFO full and overflow is happening @Spi slave while receiving the data stream @1Mbps of 64byte frames and packets are corrupting and not receiving properly. And when we configured SPI1 in DMA mode in IDE, observed that channel2 is configured, but frames are  not received. Pl provide inputs in this regard.Team Expecting your reply asap

hello，I want to download software from ST Website ,but there is not button to supply. when i didn't log in, there was a "get software",but after i logged in, it disappeared.thank you.

I'm just getting started with the STM32, only got the NUCLEO-G474RE board yesterday.I need to communicate from a PC to the STM32 over USB.  Am I correct in assuming that the CN1 USB connector is only available for ST-LINK, and I need to attach a second USB connector with breakout pins onto the Morpho connector?Is there a brief description somewhere of which USB lines go to which Morpho pins?Thanks! 

Hello,I have created a bootloader application that jumps to main application at 0x08010000.It works fine, except when I run in debug mode. In this case, the first execution runs correctly. If I push stop and restart button the application goes to STKERR.I setted:/* Memories definition */MEMORY{RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 640KRAM2 (xrw) : ORIGIN = 0x10000000, LENGTH = 64KRAM3 (xrw) : ORIGIN = 0x20040000, LENGTH = 384KFLASH (rx) : ORIGIN = 0x08010000, LENGTH = 1984K}in  STM32L4R9ZITX_FLASH.ld and STM32L4R9ZITX_RAM.ld.In main application, I setted SCB->VTOR = (uint32_t)0x08010000as first instruction.What's wrong? 

Hi I'm new in working with CAN-bus. My project involves two stm32 boards (both are nucleo-l433rc-p) and I want to get CAN-bus communication between them. The code is supposed to make a build in LED blink each time the blue button on the main nucleo board is pressed (although I would be happy to get any CAN communication at all). Relevant code: Main:

Hello, I'm testing the STM3240G-eval with the USB host MTP. The goal is to retrieve the photo from a canon EOS 100.The camera uses PTP protocol.As the demonstration  code read .wav file, I wrote a wav file to the root of the SD card. The digital camera is recognised but when the code arrives on  USBH_MTP_GetObjectHandles(&hUSBHost, 0, PTP_OFC_WAV, 0xFFFFFFFF, &WavHandles), no file is returned. Perhaps I should replace the USH_MTP_xx function by USBH_PTP_xx ?Any idea? Pierre

The current system is configured as shown in the figure above, and the serial communication is using RS485.In the system configuration, UART3 and UART2 are used, and the message from the PC through UART3 is delivered to the device through UART2 from the MCU.After that, the device processes the message and sends a response message, which is received by the MCU through UART2, and the response message is passed back to the PC through UART3.The problem is that the MCU receives the message from the PC via UART3 normally, and sends the message to the device via UART2, but the message sent to UART2 is immediately received by the U

Hello -> We are using a custom board with STM32H745 controller and 8GB eMMC communicated with sdmmc. -> getting SDMMC_FLAG_TXUNDERR bit after writing 64 bytes to eMMC. But i am giving 1k buffer array to write. -> eMMC initialization, reading logic blocks and erase command all are working and getting HAL_OK status. -> We tried SDMMC clock with 500KHz to 45 MHz.-> We are generated code from CubeMX(latest version) and running in CubeIDE (latest version)/******************************************************************************************/for(int i=0;i<1024;i++)     {       eMMCWri

So I have a abstracted function to read the INA226 component. The function reads the data completely fine over I2C. The problem occurs when I try to display the read data on my dev terminal (Terra Term) over the COM port for STM32. The output on the TerraTerm Terminal shows, the INA260 data with a hallucinated sentence. Something that should not be printed or should not be possible to print with the existing logic in the code.I am also calling the INA226Read() directly from main() without any other function calls before it.Example Output:  0.00500 INA226 not present INA226 b4.96600 INA226 not present INA226 b0.03000 INA226 not present INA226 b  The phrase "INA226 not present" should not print with the logic in my code.The function that is executing:  voi

What exactly is meant by "If Boot from FLASH"?

Hello, I am trying to create a simple frequency measuring device using 1 optical encoder and NUCLEO-F401RE board. I want to capture frequency (or period) of impulse, so I was thinking to use input capture mode and capture rising edge of impulses and see Counter value. I don't want to use interrupts or any other method to reset Counter. Ideally, it should be done on hardware and when I need, frequency could be retrieved and read. How I imagine this should works is liek this: Counter starts counting after start function somewhere on main, after impulse positive edge comes it saves the value and resets counter, when next impulse comes, it overwrites the value and again resets the counter. At any time I can  read  saved value and get current frequency. Is this possible to do without any interruptions in program?