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On the board schematics the LED is just connected to PJ2.I configured pin PJ2 as GPIO output push-pull, state high. So it should be off. But after roughly 1 second from reset the LED turns on and blinks like every 20 seconds.It's supposed to be user LED, but I have no control over it's behavior. Well, when I tried to set PJ2 to H - it caused a blink during startup, that's all. It's even weirder, because looking at schematics it should blink when I set L, not H, knowing it's set to L most of the time.

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To detach signing from cube programmer I made an open source C signing tool, using openssl. Should be rather easy to use in various build environments.https://github.com/milkylainen/stm32mp1sign

Hello, I want to ask how to read, write to tag using st25r95 as nfc reader.The mcu used in my system is dsPIC33EP128GS805 and the target tag is NT3H2111 of NXP​https://community.st.com/s/question/0D53W000014zGpESAU/st25r95-data-read-and-write-problem-iso1443a​I refer to the above link as the content of the post is similar to my situation.​Below is what I have done.protocol select [00 04 02 02 02 00], receive[00 00]send REQA [00 04 02 26 07], receive[87 00 80 05 44 00 28 00 00]send ANTICOLISION CL1 [00 04 03 93 20 08], receive[80 08 88 04 48 B1 75 28 00 00]send SELECT cascade level 1 [00 04 08 93 70 88 04 48 B1 75 28]send ANTICOLISION CL2 [00 04 03 95 20 08], receive[80 08 CA DF 56 80 C3 28 00 00]send SELECT cascade level 2 [00 04 08 95 70 CA DF 56 80 C3 28]​Through the above process, I received the UID normally. It seems that the uprotected user memory​ can be accessed without authentication, but I couldn't find in the spec what the communication protocol with st25r95 is.​​In the speci

HelloI'm using timers with DMA and I was asking myself of the use of having different clocks for timer clock and timer bus. For example timer 2 has a 90 MHz clock and a 45 Mhz bus. What would be the limitations of the bus?

I am using ST25R3916 Discovery board to tag testing purpose and I am using ST25PC-NFC feature of discovery GUI. Even though I am able to start USB mode on Discovery board ( I can see that display on discovery board shows USB mode enabled ) but GUI does not detect the device. If i try to update the firmware it shows DFU driver issue. How can I solve this issue?

Hi, following your DS, LoRa PER = 1%. While RF examination, for BW= 125KHz and SF=7, the sensitivity of the micro controller is around -125dBm for PER = 1%. When we change the value of SF to 12, the sensitivity should change to -138dBm but in reality we get sensitivity around -110dBm for PER = 1%. In -138dBm we have got Per of ~20%. Our PER calculation has taken from your lib : Subghz_Phy_Per.Our code is attached.I would like to get a feedback from you why it is not working.Thanks,Tamar

Dear Mrs, Mr,I'm working with a Riverdi discovery board with a STM32. I'm developing a serial protocol for which I'm using interrupt for reception.I enabled the IT in CubeMxUsing HAL_UART_Receive_IT(), it is working fine for the first time and also if all characters received are readIf I relaunch HAL_UART_Receive_IT() and characters were sent to the uart RX buffer without being read, it fails to work The only way I made it working was to add a HAL_UART_Init function before it and it is working fine.But I guess this is not the best way to clean buffer, state and pending interrupts. Can you advise of the best way to do it ? Thank you in advance,Pascal

i cant uplode code in my stm32 Bluepill. error notification (could not verify ST device).how to solve this problem I also change change stm32fx.cfg file .but I face same problem .

Hi everyone,I think like most people, I ignored the errata sheet till it was too late. I know that the stm32f4 and quite a few others do not provide hardware support for TTCAN, which as far as my understanding goes is level 2 CAN (global time synchronization). I have searched the forum and although the errata does come up it doesn't fully answer my question.I stumbled upon a bosch application note which mentioned the following "The time triggered communication is built upon the unchanged CAN protocol (ISO 11898-1). This allows a software implementation of the time triggered function of TTCAN, based on existing CAN ICs. The high precision global time however requires a hardware implementation. A hardware implementation also offers additional functions like time mark interrupts, a stop-watch, and a synchronization to external events, all independent of software latency times."Which makes it seem like I would be able to implement level 1 TTCAN in the existing system, although not level 2.

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Hello, I have made a custom external flash loader(.stldr) file for my STM32 based board and this file works great with ST Link Utility(Read, Write and Erase) are work fine and i can Program the board correctly. But when i try to use the created .stldr file by STM32CubeIDE the erasing process well done but when the downloading process gets start then "failed to download Segment[0]" error pups up. Could any one help me with the problem?MCU = STM32H743iit6QSPI Flash = W25Q256  STMicroelectronics ST-LINK GDB server. Version 6.0.0 Copyright (c) 2021, STMicroelectronics. All rights reserved.   Starting server with the following options: Persistent Mode : Disabled Logging Level : 1 Listen Port Number : 61234 Status Refresh Delay : 15s Verbose Mode : Disabled SWD Debug : Enabled InitWhile : Enabled   Waiting for debugger connection... Debugger connected Waiting for debugger connection... Debugger connected Waiting for debugger connection... ------------------------------

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Is sdmmc it primary component for stm32cubIde or it must be imported manually ? if so please show me where to start.thanks,Hakob

Hi,I try to use a custom board with LIS25BA.I use SAI with STMF446.What I know :MCLK = 12.288 MHzWCLK = 16kHz8 slot with 3 activeso BCLK = WCLK * (8 * 16) = 2.048 MHzWhat I can do :I2C works like a charm ;)What I can't do :Configure SAI with these values.Only MCLK is false and depends on Master Clock Divider I guess ...My actual config :  If someone can help me, it would be so greatThanks in advanceAxoul

Hello everyone,I am trying to define a machine configuration file for a custom board using the DistributionPackage (I am following this approach from the ST wiki and my directory tree is the same described there).Currently, I managed to successfully boot my custom board using the DeveloperPackage, this makes me believe that the device tree files I generated using the ST MX Cube are okay.From my understanding, it is not possible to generate the filesystem files (e.g. ext4) within the DeveloperPackage (I used the ones from the StarterPackage); can you confirm this?So far, I populated the mx directory under <path of STM32MP1_Distribution_Package>/layers/meta-st/meta-st-stm32mp-addons/with the device tree files I generated using the DeveloperPackage and its directory tree looks as it follows:mx └── es-frank-ghiacciolo    ├── kernel    │   └── stm32mp157c-es-frank-ghiacciolo-mx.dts    ├── optee-os    │   └── stm32mp157c-e

HiThere is this motor control nucleo Pack P-NUCLEO-IHM03 which includes the NUCLEO-G431RB evaluation board, the X-NUCLEO-IHM16M1 expansion board and Gimbal motor GBM2804H-100T. I cannot find further information if the included evaluation board can be used with other expansion boards for motor control e.g. for brushed DC Motors.Thank you for any help

Hi,I want to know:What is the difference between L9780 and L9780AC?what the "AC" means?

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Is there someway to do this with stm32cubeide?For my specific use case I am storing configuration data on last page of flash (currently working on figuring out how to erase it so i can rewrite it in software), but I would also like to be able to configure it by reprogramming it. I can check that the page is empty and write settings to it, but I haven't found any way to erase it with stm32cubeide, I need to open the st link utility in order to erase the flash as far as I can tell.

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STM32F1x Standard Peripheral Library part number stsw-stm32054 does not appear.This library was released as V3.6.0 on November 05, 2021.I downloaded this library.However, it is currently unavailable. It seems that you can download the library from the Japanese website.Where can I get the library from the "st.com" homepage?