STM32 MCUs Embedded software

Hi,I am using a STM32C031G6U6 and I would appreciate some clarification regarding HAL timebase and SysTick timebase selection.I want to use SysTick as a 1ms interrupt so in CubeMX I selected SysTick as timebase (see screenshot): None of the other timers - including TIM3 - are not enabled as shown here:

I am using STM32G491RE - NUCLEO. connected to the ADM3055e CAN Transceiver Currently I am trying to send 12 Bytes of Data from IXXAT Terminal over to FDCAN1 which receives the message fine and then Output the Message on FDCAN2 though a buffer. So My logic is when a message pass the filter it gets called by the Fifo0Callback and push it to a buffer below. This works fine the buffer also get the full 12Bytes of data same FD format and everything checked out.But when I try to add the message to HAL_FDCAN_AddMessageToTxFifoQ(&hfdcan2, &TxHeader2, TxData2). Where TxData is the dequeued message from the buffer and copys the 12Bytes. The message somehow gets truncated to 8Bytes on output. Heck, when I add "if (HAL_FDCAN_GetTxFifoFreeLevel(&hfdcan2) > 0)", It somehow says it is full even when starting the code.I have been suspecting because I cant set the HAL_FDCAN_ConfigTxBufferElementSize and HAL_FDCA

Hi all,during testing a custom project with NETXDUO on NUCLEO-H563ZI I've noticed that sometimes web server response is rather slow.Wireshark shows rather frequent TCP retransmissions and other problems.To be sure, I've tried an example from ST (Nx_Iperf) with the same result.It seems that problem is in ETH_Prepare_Tx_Descriptors(), in check of Tx Descriptor: /* Current Tx Descriptor Owned by DMA: cannot be used by the application */ if ((READ_BIT(dmatxdesc->DESC3, ETH_DMATXNDESCWBF_OWN) == ETH_DMATXNDESCWBF_OWN) || (dmatxdesclist->PacketAddress[descid

Dear all, We are using the STM32N6570-DK to encode a video stream (800x600px) and store that at a reasonable data rate to an external sd-card.I have extended the VENC_SDCARD_ThreadX example to a certain extent to cover the obvious timing differences between the video capture loop and a disk write loop. The sample code is a great way to go forward, but at the moment we reach a data write rate of about 25kb/s when using FileX.We have initially used the HAL implementation but I have changed the fx_stm32_sd_driver_glue.c code slightly to use the BSP layer for card speed negotiation that is not present in the HAL layer; debug output shows that we're at least using 4-bit wide data transfers>:CardInfo type 1, version 1, class 1461, spd 0 Inst PWR 00000013 CLKCR 00004004  It seems that just before reaching down to the HAL layer, the single transaction (~200blocks at once, typically

I need to create a UART driver that works reliably in all conditions.The driver must use DMA, and since the incoming messages are NOT fixed-length, I need to use idle line detection.My question is: how can I use a callback to store the received message when an idle line is detected and then restart the reception using the STM32 HAL idle-line API?

Hello,  I'm using STM32CubeIDE 2.0.0 + STM32CubeMX 6.16.1 + FW_H7 V1.12.1 I have a problem with USBX RNDIS.The generated code on file ux_device_descriptor.h  at line 308 is: #define USBD_RNDIS_EPINCMD_ADDR 0x81U In the exemple code of STM32H735-DK find on stm32-usbx-exemple repo I have this #define USBD_RNDIS_EPINCMD_ADDR 0x82U The USB device is well recognized be my computer (windows 11) only if the value is 0x82U. My questions:  - why it doesn't work with 0x81 - is there is a tips to modify this value on Cube ? Actually I add an error at the end of the file if value is 0x81..   Thanks for help !  

I am implementing a TCP Server on an STM32H563ZI (Nucleo-144) using NetXDuo. The software initialization part is working perfectly; the ThreadX kernel starts, and NetXDuo reports that the IP instance (192.168.2.55) and TCP are successfully enabled.The Implementation Logic:The system is designed to initialize the network interface, assign a static IP, and start listening on Port 80 for incoming commands. Physically, the link is established as the Ethernet LEDs are active.The Problem:Despite the stack reporting a "Ready" state:There is no ICMP (ping) response from the board.TCP connection attempts via Hercules or Telnet on Port 80 fail with a timeout.It feels like the MCU is either not receiving packets from the PHY or failing to transmit them back to the wire.I am looking for guidance on why the communication

hello everybody I am programming 10 addressable Leds with PWM with DMA using the M7 cortex of an STM32H747 in a custom board.Characteristics:Clocks: SysClk 480 MHz, TIM kernel clock 240 MHzTimer: TIM3, Channel 4, internal clockPWM base frequency: ~770 kHz (period ≈ 1.3 µs).ARR: 312‑1 (312 ticks → 240 MHz/312 ≈ 769.23 kHz).DMA: Peripheral = TIM3_CCR4, Memory in RAM_D2, half‑word alignment (16‑bit duty), MemInc enabled, PeriphInc disabled, Mode = Norm

I am creating a program that jumps from the bootloader to the application program using the STM32F410.The bootloader uses 0x08000000 to 0x08003FFF.The application uses 0x08004000 to 0x08007FFF.The bootloader program jumps to the application program successfully,but after entering the application program, the USART interrupts do not function.The SPI in the application program continues to operate after the jump. I'm posting the jump-related program.Can you figure out what the cause might be? I'd appreciate your help.【Bootloader main.c】 void jump_main(){ __disable_irq(); // Clear all interrupt bits for (uint8_t i=0; i<8; i++) { NVIC->ICER[i] = 0xFFFFFFFF; NVIC->ICPR[i] = 0xFFFFFFFF; } int * address = (int *)0x08004004; __set_MSP(*(int*)0x08004000); *(int*)0xE000ED08 = 0x08004000; ((void (*)())(*address))(); } 

Hello everyone, I'm having issues with the Heap of the LWIP that is used/full, and I can't do any mem_malloc. I have dig a bit on why the log of LWIP tells me that  it couldn't allocate memory ("etharp_raw: could not allocate pbuf for ARP request"). As far as i understand, the mem_malloc used the struct mem *lfree variable to handle the allocation for the LWIP and which is the next/previous chuck and also if the next chunk is being used or not.     struct mem { /** index (-> ram[next]) of the next struct */ mem_size_t next; /** index (-> ram[prev]) of the previous struct */ mem_size_t prev; /** 1: this area is used; 0: this area is unused */ u8_t used; #if MEM_OVERFLOW_CHECK /** this keeps track of the user allocation size for guard checks */ mem_size_t user_size; #endif };   &nbsp

LINK TO THE CODEHello everyone,I'm working on a data logging project using a NUCLEO-L432KC board and a standard Micro-SD card module.I have a very frustrating issue: Reading from the SD card works perfectly, but Writing fails immediately.Hardware Setup:MCU: STM32L432KC (Nucleo-32 board)SD Module: Generic MicroSD Card Module (with 5V to 3.3V regulator and level shifter).Power: Module is powered via the 5V rail from the Nucleo. I added a 1000µF / 25V electrolytic capacitor in parallel on the breadboard to prevent any power drops (brown-outs) during write operations.Pinout: * SCK: PB3MISO: PB4MOSI: PA7CS: PB6 (Software managed)Software / CubeMX Setup:

Hello ST Community,We are working with STM32N6 (STM32N6570-DK) and an IMX335 camera sensor, and we would like to confirm whether our intended pipeline is supported and feasible on this platform.What we are trying to doOur goal is to enumerate the device as a standard USB UVC camera on a PC and stream live video:- IMX335 sensor outputs RAW10- STM32 ISP processes RAW10 (demosaic, color processing)- DCMIPP outputs RGB565- Firmware converts RGB565 → YUY2- USB Device enumerates as UVC (Uncompressed YUY2)- Live video displayed on Windows camera applicationThe USB device enumerates correctly and is detected as a UVC camera on Windows, but the live video stream currently appears black.Current Observations- USB descriptors and UVC configuration (Uncompressed format, payload handling, FID/EOF toggling) appear correct- DCMIPP and USB pipelines run without errors-

I am using below component tools MCU: STM32H750IBT6 IDE: STM32CubeIDE Version: 1.20.0 GUI: TouchGFX Version: 4.26.0 SDRAM: IS42S32400J-6TLI FLASH: MT25QL512ABB8ESF-0SIT (QUADSPI) QUADSPI With the following pin out:   QUADSPI Configuration:

I'm currently using an STM32H7S78-DK, and I'm correctly able to run TouchGFX with FreeRTOS and everything. I also an error handler function that, in case of a crash of TouchGFX it writes directly to the framebuffer.Now, I would like to do a similar thing but on the boot code, so basically before the classic jump if (BOOT_OK != BOOT_Application())I have an external RAM mapped at the address 0x90000000 which works correctly in TouchGFX with .icf likedefine symbol __region_EXTRAM_start__ = 0x90000000; define symbol __region_EXTRAM_end__ = 0x91FFFFFF; define region EXTRAM_region = mem:[from __region_EXTRAM_start__ to __region_EXTRAM_end__]; place in EXTRAM_region { first section TouchGFX_Framebuffer , section Video_RGB_Buffer , section Nemagfx_Stencil_Buffer };I wanted to use the same section of memory in the Boot, accessing the framebuffer directly, so I edited th

Hi,I just wanted to check if is it dangerous to move the isr_vector inside the text section like this:.text :{. = ALIGN(4);KEEP(*(.isr_vector)). = ALIGN(4);FILL(0x00000000);. = ALIGN(4);*(.text) /* .text sections (code) */*(.text*)*(.glue_7) /* glue arm to thumb code */*(.glue_7t) /* glue thumb to arm code */*(.eh_frame)KEEP (*(.init))KEEP (*(.fini)). = ALIGN(4);_etext = .; /* define a global symbols at end of code */} >FLASHI implemented a CRC32 integrity check and it doesn't work because the gap between the isr_vector and text section is always Fs when I debug with the CubeIDE, but if I download the .elf with CubeProgrammer, the gap is filled with 0s, and in that case it works.TY for your help.

Hi everyone,I am trying to get a USBX CDC ACM device running on an STM32F407ZGT6, using a project generated by STM32CubeMX. I'm basing my work on the example provided for the STM32F469 (DEVICE_CDC_ACM).Problem DescriptionThe device is partially working. When I plug it in, Windows Device Manager recognizes it and assigns a COM port. However, when I try to connect using any terminal software (Tera Term, PuTTY, etc.), the connection fails. The software cannot open the port.Debugging FindingsThrough debugging, I've identified a key issue in the initialization sequence:Instance Activator Not Called:​ The callback function I set for cdc_acm_parameter.ux_slave_class_cdc_acm_instance_activate(which is CDC_Init_FS) is never triggered. This prevents the proper initialization of my CDC ACM instance.Null Pointer

Hallo everyone,Before I encountered a bug in an USB_OTG_FS library function (see previous post), I struggled to find out when the function  'CDC_Transmit_FS(uint8_t* Buf, uint16_t Len)' has finished, meaning the content of the 'Buf' argument is completely transmitted.After a thorough search through the various sources and the Reference manual RM068, I concluded the Register DOETMSK has a bit XFRCM that should fire an interrupt in case the the transmission has finished. I assume the common interrupt function ' HAL_PCD_IRQHandler(&hpcd_USB_OTG_FS)' will deduce that function 'CDC_TransmitCplt_FS(.......)' should be fired when the XFRCM creates an interrupt.Despite my efforts I could not find a way to:   a) find out if my assumptions above are complete and/or correct   b) how to handle the registers for the USB_OTG_FS device. In the SWF column of the debugger I saw 4 groups of OTG registers, but never found a w

Hello,I have a issue with my STM32U5G9. It does not go into standby or shutdown mode. I want to achieve a wake-up by the power button of my device. The powerbutton is connected to PWR_WKUP6 (pin PB5). The button has a 100k pull-up. I verified the voltage levels with a scope (3.3V --> 0V).I checked with the examples in the STM32CubeU5 Github repo. This my code: void LowPower::EnterStandbyMode(void) { PrepareForLowPower(); __disable_irq(); for(int i = WWDG_IRQn; i <= JPEG_IRQn; i++) { NVIC_ClearPendingIRQ((IRQn_Type)i); } /* Enable WakeUp Pin PWR_WAKEUP_PIN6 connected to PB.5 */ HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN6_LOW_0); /* Clear all related wakeup flags*/ __HAL_PWR_CLEAR_FLAG(PWR_WAKEUP_FLAG6); HAL_DBGMCU_DisableDBGStandbyMode(); /* Enter the Standby mode */ HAL_PWR_EnterSTANDBYMode(); // If entry fails (e.g., if a debugger is attached), reset the system NVIC_SystemReset(); }

Hello,Normally we use HAL_GetTick() in HAL driver.I want to use GetTick() in STM32 LL driver. How to get and use GetTick() in STM32 LL driver?

..

Hello there, I'm trying to create an external loader for my stm32h7s7-dk board via MCE.I followed this https://www.youtube.com/watch?v=JxhKmVUB2Ws&list=PLnMKNibPkDnFQXYK0ztHV9iMVS6EAtKpD&index=10 tutorial series and i check the github repo of this project. But the repo and the video series can be different. The instructor might add some new things. But the methodlogy cant work. Its really stupidly. The loader writes only 0x00 to flash for app size.

Cube setting is OK!First run OK!if(HAL_OK != HAL_UART_Transmit(CO_INFO.channel, co_dma_tx_data, send_len, 0xFFFF))    {        DEBUG_PRINT("CO MODULE SEND DATA ERROR!!\r\n");    } Then setting OK!if(HAL_OK==HAL_UART_AbortReceive(CO_INFO.channel))if(HAL_OK==HAL_UARTEx_ReceiveToIdle_DMA(

Hi there!I already configured LwIP package and make it work on a NUCLEO-H755ZIQ following @Adam BERLINGER gude in the Knowledge base section:https://community.st.com/t5/stm32-mcus/how-to-create-project-for-stm32h7-with-ethernet-and-lwip-stack/ta-p/49308 Well, trying to move the LwIP heap memory to a larger memory location I experienced a n unexpected issue:When I locate the heap in the DTCMRAM of the M7 core, communication will no more work at all(no ping, no tcp connection...).Locating it in D1 (AXI RAM) or D3 RAM all work as expected.I checked also the MPU configurations ad all seems correct, it seems that in DTCMRAM there is a different behavior. Just for my comprehension, there is something wrong in locating such heap into

ST moderator: updated the title with the MCU part number. I am working on an embedded web interface hosted on an STM32-based system using lwIP. The interface serves basic HTML pages along with multiple product images for browsing and preview.On pages that contain several high-resolution images, similar in structure to pages like  this: I notice slower load times and occasional rendering delays when everything is served directly from the MCU web server.For those with experience building embedded web servers on STMicroelectronics platforms, what t

I have an STM32H563 running FreeRTOS and LwIP with the netcon interface.For the most part its working OK, however when I send a lot of data (around 250KB/s for a few seconds) it crashes with a HARD_FAULTIt looks like the memory (pbufs) are being corruptedThe driver (etherentif.c) is based on LwIP/LwIP_HTTP_Server_Socket_RTOS/Src/ethernetif.ctaken from the STM32H7 cubeIs there an updated driver for the STM32H5 or one with known reliability ?