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I'm new to fiddling with MCUs, so I'm looking for some advice, I'm working on a project for my class and I'm trying to emulate a keyboard using the nucleo-F103rb. I have my code written out, I have a usb cable with D+ Connected to PA12 and D- to PA11, GND to GND and VCC to E5V all within CN5. Despite having all the headers in place, my computer doesn't detect any connection whatsoever. If anyone could suggest anything that may help it'd be really appreciated. 

Hello everyone, I tried to put Canopen node for stm32 into operation. I used the standard pinning from STMCubeIde, i.e. pa 11 and 12. But this does not seem to work. void FDCAN1_IT1_IRQHandler(void) { /* USER CODE BEGIN FDCAN1_IT1_IRQn 0 */ /* USER CODE END FDCAN1_IT1_IRQn 0 */ HAL_FDCAN_IRQHandler(&hfdcan1); is not called. Is something known here? Solution was to change the pins to PB9 and PB8. Now the function was called and the stack ran. Is there a workaround to use pa11 and 12 anyway ? Thanks for your support.

How can I generate the sfu_se_mpu.s file for the STM32H753ZI and STM32H733 controllers in SBSFU? 

Hello,I went through all the SWO related topics, and it was a bit confusing for me to get it running, so I summarized the steps to have it working on a Nucleo H755.In my project I have the main clock set at 400MHz, Timer2 running at 1Hz and Debug set as "Trace Asyncronous Sw"In my main.c I have added just this:    /* USER CODE BEGIN 2 */ #define SWO_BASE (0x5C003000UL) #define SWTF_BASE (0x5C004000UL) uint32_t SWOSpeed = 2000000; // [Hz] we have 2 Mbps SWO speed in ST-Link SWV viewer uint32_t SWOPrescaler = (SystemCoreClock / SWOSpeed) - 1; /* divider value */ //enable debug clocks DBGMCU->CR = 0x00700000; //enable debug clocks //UNLOCK FUNNEL //SWTF->LAR unlock *((__IO uint32_t *)(SWTF_BASE + 0xFB0)) = 0xC5ACCE55; //unlock SWTF //SWO->LAR unlock *((uint32_t *)(SWO_BASE + 0xFB0)) = 0xC5ACCE55; //unlock SWO //SWO divider setting //This divider value (0x000000C7) corresponds to 400Mhz core clock //SWO->CODR = PRESCALER[12:0] *((__IO uint32_t *

@Tesla DeLorean Hello,It looks like the https://github.com/cturvey (I believe it is user's Tesla Delorean's) is gone? I have tried to access it yesterday and today and I am getting a page not found error. Any ideas as to why?Thanks. 

Hello Everyone,We have a requirement to flash firmware from One STM32G0B1 MCU1 to Second STM32G0B1 MCU2 via UART.The STM32_Programmer_CLI will be connected to MCU1 via UART. The MCU1 and MCU2 will be connected together via a different UART for flashing. The MCU1 should act as a mediator between STM32 Programmer and MCU2 for flashing.Is it possible to achieve the above requirement? If It is possible, could anyone share the reference documents or reference software for the same.We really appreciate your support. Thanks in Advance,Best Regards,Naveen

I have provided my ONNX model, which has been tested. INTERNAL ERROR: H not found in shape with shape map (BATCH, CH, W)

Hi,I'm currently working on a project using multiple B-WB1M-WPAN devices:one acts as BLE Central;the others act as BLE Peripherals.I'm using the STM32_WPAN software package in CubeMX 6.14.My question is: how do I create a Central that is able to interact with Custom services and Characteristics defined on my peripherals?I've already started using the Server profile "Custom Template" on the Peripheral devices; for the Central (Client profile), CubeMX forces me to use the "Custom P2P Client", and both CubeMX and the code don't allow for a great deal of customization.Thank you!

I'm trying to interface the STM32F446RET6 with M95P32-IXCST/EF, a QuadSPI EEPROM. For the 64 pin STM32F446RET6 pin PB2 (pin 28) is used both as BOOT1 and QUADSPI_CLKI don't see any other pins that can be used as QUADSPI_CLK for the 64 pin package. Is there a way to interface with the EEPROM?

Hi, I am searching for any documentation or tutorial on how to use debug tools i.e FreeRTOS, SWV etc. Thanks & Regards, YashJ    

Currently I am just trying to share some data between cores, and right now I'm just trying to send a constant value to confirm operation.I have this code located in a file called share.h,typedef struct {   // shared data goes here   int16_t data;   }shared_data_t;and then I havevolatile shared_data_t * const shared_data = (shared_data_t *)0x30040000;saved in each core's main.c file.The location is SRAM3 and according to the RM this is an optimal place to share values. It updates properly in M7, but when I check the struct in M4 it's not the same value. When googling, this was the number 1 answer, the second was the linker. I don't know where to begin with the linker, so if that is the option is there any good guides? Thank you for reading this

Started using PA2 pin as a ADC input and found that the input voltage get corrupted with LSCO output. Happens not always, but very often. Powering board down and up sometimes fixes the problem, sometimes not.The LSCO output enable control bit LSCOEN is 0. Calling HAL_RCCEx_DisableLSCO() doesn't help.Thanks,George

I'm developing an app that writes and reads settings from an STM32 over NFC. I can write settings to the ST25DV mailbox and poll the RF_PUT_MSG register to detect when data has been written. Which register should I poll to know if the app has requested to read data?

Hello STM Community,I am designing an internal PCB antenna for LoRa communication using the STM32WL55JCI7 at EU868 frequency. Is a PCB antenna recommended by STM for this chip? If so, what guidelines or procedures should I follow for designing a PCB antenna for LoRa communication? Additionally, what range can I expect with an optimized PCB antenna design?Looking forward to your insights. Thanks!

Hello,I update my computer to MacOs 15.3.1 and I have a similar problem to when MacOs 15 arrived. The St-Link (ST-Link v3 mini) is not detected with Cube IDE (CubeIDE v. 1.17.0).It worked fine in MacOS 15.1.1I've tried starting the IDE as admin and adding the link's path to the path list, but it doesn't work. (https://community.st.com/t5/stm32cubeide-mcus/stlink-server-with-macos-15/td-p/705089)On the other hand, it is well detected with STM32Programmer.I added the IDE to the development tools in the security tab of the computer settings, just in case the problem came from the fact that apple could have changed the security rules, but that didn't solve the problem. 

Hello everyone,I'm currently working with an STM32MP157F-DK2 device, and I need to change the MAC address. I'm building the image using bitbake, but I've encountered an issue when trying to modify the MAC address through OTP cells linkHere’s the output I get when checking the OTP values: STM32MP> fuse sense 0 57 2Sensing bank 0:Word 0x00000039: e17ae710 0000c393 STM32MP> fuse sense 0 58 2Sensing bank 0:Word 0x0000003a: 0000c393 12724303 STM32MP> env print ethaddrethaddr=10:e7:7a:e1:93:c3 STM32MP> fuse sense 0 0x10000039 2Sensing bank 0:Word 0x10000039: 40000000 40000000 As you can see, the current MAC address is 10:e7:7a:e1:93:c3, and the OTP cells are already programmed and locked. I tried to change the MAC address using the fuse prog command, but the OTP cells are locked, and I cannot modify them.Is there any way to change the MAC address on a locked OTP cell? Is it possible to unlock the OTP or reset it somehow?Additionally, I’m building the imag

Hi,this is myproduct code STM32H563VGT6. I am configuring the FDCAN2 module.In particular the bit time using the filed below of the init structure of the HAL handler:hfdcan2.Init.NominalPrescaler (NBRP+1 of register FDCAN_NBTP)hfdcan2.Init.NominalSyncJumpWidth (NSJW+1 of register FDCAN_NBTP)hfdcan2.Init.NominalTimeSeg1 (NTSEG1+1 of register FDCAN_NBTP)hfdcan2.Init.NominalTimeSeg2 (NTSEG1+2 of register FDCAN_NBTP)The protocol (and the ST manual rm481 at page 2542) specify that TimeSeg1 max value is 16, TimeSeg2 max value is 8. In the example FDCAN_classic_frame_example I found this values: hfdcan1.Init.NominalPrescaler = 1; hfdcan1.Init.NominalSyncJumpWidth = 62; hfdcan1.Init.NominalTimeSeg1 = 187; hfdcan1.Init.NominalTimeSeg2 = 62; Seems that these value are out of range.I'm definitely missing something. can someone explain the meaning of the parameters in the example "FDCAN_classic_frame_example" ? Thank you. Regards.

I have designed RFID and I am now trying to deternine the antenna parameters by followingAN4974 Antenna matching for ST25R3911B/ST25R391x devices I have bought NanoVNA-H4 for doing the measurements.But what confuses me is how to connect the RFID antenna. The instructions says:1. Set the measurement mode of the network analyzer to S11 reflection measurement2. Use the Smith chart format (R + jX) to display the impedance curve...Connect the cable of the network analyzer at the antenna ends NanoVNA-H4 has two channels S11 and S21. My PCB has a differential antenna based on this antenna design:https://eds.st.com/antenna/#/ Then I am not sure how I shall connect the two antenna ends to my RFID. I have cut a coax cable and soldered on my PCB:.If I connect one end to S11 and another end to 21 of NanoVNA I get resonable values of @1 MHzSerie inductuance = 1.13 uH@40.543 MHzParallel resistance 2.01 KOhmSelf resonance 40.543 MHz But DC serie resis

Hello i'm starting programming with stm32, i've bought the stm32wb5mm-dk and with stm32cubemx I've tried to configure the board to create a ble ibeacon.So, now i can see the ibeacon from nrf app but isn't showed the name (N/A ibeacon). How can i see the name?I've to change anything?Sorry i'm really new in this field.Thanks  

I drew a pcb with antenna and put st25dv on itbut i get read data error on the st appis that st25dv need to program first?or just my soldering is bad? or antenna isnt standard?the antenna is designed as this P.S. I can read the tag by other app call NFC tools(error read and write memory still), but still error with st official appand it is not very sensitive actually , this design should be around 1.1uH in the st nfc inductance simulate. is this good?how to improve?

Hi everyone;I have select;In cube mx -> middleware and software packs -> X Cube Algobuild -> DSP LibraryHowever , there is no dsp libraries in my keil project.And there is no .lib in the folder.I have re-generate for several times, but it did not take effect. Could you help me please, thank's a lot.

Hello, I configured CAN communication between two STM32F446RE boards. The code works in Loopback Mode, but not in Normal Mode. I did not use an external CAN transceiver, as I read that direct communication is possible on the STM32F446RE. What I have tried: CAN initialization is correct, and messages are transmitted successfully in Loopback Mode. In Normal Mode, HAL_CAN_AddTxMessage() returns HAL_OK, but no messages are received. Connected CAN_TX of Board 1 to CAN_RX of Board 2 and vice versa, with a shared GND. Enabled CAN interrupts and checked for errors using HAL_CAN_ErrorCallback(), but none appear.  

Hello. I was recently advised that STM32F103C8T6 and STLINK-V3MINIE should be soldered directly without an adapter. VCC with 3V3GND with GND SWDCLK with CLK SWDIO with ?

Hello,  I am trying to setup the CM4 core with lwip+mbedtls working. Actually I get this code working on CM7 but I need to migrate it to CM4. When I run the code the CM4 get a ard fault interrupt. Debuging I can see that this happens in HAL_MPU_Enable in the line SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk; I thing that this happens because a wrong configuration of memories and/or MPU. I'm not familiar with memory management in microcontrollers and I'm feeling lost. The MPU configuration is: void MPU_Config(void) { MPU_Region_InitTypeDef MPU_InitStruct = {0}; /* Disables the MPU */ HAL_MPU_Disable(); /** Initializes and configures the Region and the memory to be protected */ MPU_InitStruct.Enable = MPU_REGION_ENABLE; MPU_InitStruct.Number = MPU_REGION_NUMBER0; MPU_InitStruct.BaseAddress = 0x0; MPU_InitStruct.Size = MPU_REGION_SIZE_4GB; MPU_InitStruct.SubRegionDisable = 0x87; MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0; MPU_InitStruct.AccessPermission = MPU_REGIO

Hello,I am having some trouble understanding what bootloader (if any) is installed by ST from the factory for the STM32U5x and what AES key sizes that bootloader supports for secure firmware update. UM2851 only lists AES-CTR-128 (I interpret 128 to be the key size) but mcuboot docs lists support for 256-bit keys.Ultimately, I need to be able to encrypt my software using a 256-bit AES key. Is this possible with STM32U5A5 and the ST provided tooling? If so, is there documentation describing how to achieve this configuration? Thank you