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I hope you are doing well,So I've got a problem which its driving me crazy. I am trying to implement FIR filters in my stm32cubeide proyect by using CMSIS-DSP library, but I gess I am not importing the lib correctly or something, because everytime I call the func 'arm_fir_init_f32' it just throws an undefined reference error. I have already followed all the tutorials that I found on youtube to integrate the library in this IDE. I have also tried to just manually copy arm_mat.h and reference the file on top of my main, but that didn't solve the problem.I have the lastest version of both the IDE and the library, downloaded by the software packs in the .ioc file.If someone knows what could be the cause, please let me know. Thanks in advance.   

Hello,What is the Zchip value of a ST25R3916B-AQWT chip?Looking at the AN5276 page 29, the Qucs settings for Zchip is 3Ω and Zchiphalf of 1.5Ω.  Should I use this same value for simulating the ST25R3916B-AQWT chip?  The other app note AN4974 says it is applicable for ST25R391X parts and on Page 46 it recommends a Zchip value between 14Ω and 20Ω.What is the real NFC input impedance value of the ST25R3916B-AQWT chip?What value of Zchip should I use on the Qucs simulation?Thank you,Pablo

Hello, I am trying to use the "CR95HF.dll" file provided in STSW-95HF002 to make my own Visual C++ application. I tried everything I can to load this DLL but the visual studio is not able to lead it and gives a linking error - LKN1104 Cannot open file 'CR95HF.lib'I googled this error and tried all the possible ways and still was not able to proceed. I want to make a console application of my own to read my tag from MB1054B board. What is the configuration required by the Visual Studio so that I can avoid this error? Should the configuration platform on Visual Studio project should be x64 or Win32? What should be the build configuration, build or release?Also, I tried putting the .lib and .dll file at the same location as the my project's solution file. It should work right? the .dll file is also placed at C:\Windows\System32I want to make a .exe where the terminal pops up and starts reading my tag and printing the data. Some help on this would be appreciat

Hello there!I wanted to ask, how do you differentiate between counterfeited product and the real product? I am now using the ST25TV02KC tag (NFC type5 - ISO/IEC 15693) and I wanted to know if there might be someone out there that can clone the UID and manufacturer ID of the tag, so that I then cannot differentiate between the real and the counterfeited product?Thank you before!

Hi,I have tried to search the forum, but not been able to find a clear answer.I am very new to NFC and have started by acquiring the NFC03A1 (ST25R95) together with a NUCLEO board (F446RE).My hopefully simple questions are:1. Is it possible to write and read data from a tag?2. Which tags can/should be used for this?I have downloaded X-CUBE NFC3 and downloaded the "STM32L476RG_NUCLEO_PollingTagDetectNdef" project to the MCU and are able to run this from the terminal window.I have read some literature and it seems that NFC FORUM Tag Type 4/5 should be used, because they are NDEF?Thank you.Br. Thomas

According to AN2606 section 12 we can use USB DFU bootloader as long we have HSE using a 24, 18, 16, 12, 8, 6, 4 MHz crystal. This is missing from section 3.3 of the datasheet. Is there a reason for this?

Hello,I have a project where I am trying to check flash memory by calculating the CRC32 of it and compare it to the CRC32 of the generated .bin file to verify memory corruption. As the CRC32 was not ok, I realize that the memory in the generated .bin file and in the microcontroler was not exactly the same.I'm working on a F407 STM32 µC. After launching the debugger, the 2 32bits at memory address 0x0800 0188 are set  to 0xFFFFFFFF while in the .bin file, they are equal to 0x00000000.0x0188 is the length of the g_pfnVectors. So from what I understand 0x0800 0188, it is the address of the Default_Handler. Not sure of that. And I do not understand why it is set to 0x00000000 in the .bin file and set to 0xFFFFFFFF after launch. I have check with STM32CubeProgrammer, the 2 32bits @0x0800 0188 are equal to 0x00000000 after flashing the bin file. It is the launch that change the value to 0xFFFFFFFF.Is there a way to avoid this? Either make the data in flash stay at 0x0000

Hello,I am new to STM32 parts and USB. We are looking at using USB to communicate between two STM32F407 boards.Can anyone give some insight as to the best way to do this?What USB classes should be used?Any examples of this?Thanks,Brent

Hello,I am currently evaluating the STM32H562 device. This devices has an ICACHE (instruction cache) module.Does it make sense to enable both, the ICACHE module and the FLASH prefetch buffer? In the past I already worked with the G0, G4 and F4 series.If I create an STM32G474 CubeIDE project, I can enable the FLASH "Instruction cache" and the "Prefetch buffer" via the "RCC" module.If I create an STM32H562 CubeIDE project, I can enable the "ICACHE" module but there is no "Prefetch buffer" setting in the "RCC" module anymore.Is there a reason that the "prefetch buffer" enable option is not available for the H562 device in the CubeIDE?What is the difference between the "FLASH Instruction cache" of the G4 and the "ICACHE" module of the H5?Thank you,Markus

Hi,I'm using STM32WL55 Wireless, Long Range Nucleo-64. My goal is to use this floor as an end node. I want to connect my existing sensors to the card via I2C protocol and send the data via LoRa. In the examples I examined, peripherals are used using IKS01A2, but can't I read from the sensor using the I2C pins on the board and send the data via LoRa without using it? I would be very happy if you could help me, good work.

Hello.I'm using STM32F407, use usart3 set DMA setting baud rate 9600 and use receive void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size){if (huart->Instance == USART3) {HAL_UARTEx_ReceiveToIdle_DMA(&huart3, RxBuff, Size);__HAL_DMA_DISABLE_IT(&hdma_usart3_rx, DMA_IT_HT);}} connect to computer using software terminal "HTerm" Set baud rate 9600 STM32F407 can receiveBut i change to other baud rate such as 115200then i change baud rate 9600 can not receive

I'm attempting to interface an STM32G473 with a VESC motor controller using CAN.I am successfully receiving status frames from the VESC controller, but when I transmit a frame to command it, the ID my scope reads in the frame is not always the same as what I set in my code. It appears to always set bit 0.For example, if I set an extended ID of 0, my scope reads an ID of 1. Setting the ID to 1 in code results in the same waveform. I've attached waveforms for IDs 0 and 1. The problem persists for other IDs, so 88 becomes 89 etc.I've used CubeMX to configure FDCAN1 for 500kbps, which gave me this at 150MHz clock: hfdcan1.Instance = FDCAN1;hfdcan1.Init.ClockDivider = FDCAN_CLOCK_DIV1;hfdcan1.Init.FrameFormat = FDCAN_FRAME_CLASSIC;hfdcan1.Init.Mode = FDCAN_MODE_NORMAL;hfdcan1.Init.AutoRetransmission = DISABLE;hfdcan1.Init.TransmitPause = DISABLE;hfdcan1.Init.ProtocolException = DISABLE;hfdcan1.Init.NominalPrescaler = 20;hfdcan1.Init.NominalSyncJumpWidth = 1;hfdcan1.Init.NominalTimeSeg1

Hi,I am using STM32G491 for the project. For USB HID class the Cube MX generates usbd_dec.c file. In this file, there is a Get_SerialNum functionstatic void Get_SerialNum(void){  uint32_t deviceserial0, deviceserial1, deviceserial2;   deviceserial0 = *(uint32_t *) DEVICE_ID1;  deviceserial1 = *(uint32_t *) DEVICE_ID2;  deviceserial2 = *(uint32_t *) DEVICE_ID3;   deviceserial0 += deviceserial2;   if (deviceserial0 != 0)  {    IntToUnicode(deviceserial0, &USBD_StringSerial[2], 8);    IntToUnicode(deviceserial1, &USBD_StringSerial[18], 4);  }}so, is this code shall generates %100 unique serial numbers for every product?If it is not is there any alternative that shall generate a unique serial number?Best regards.

Hi,I'm developing firmware for embedded with NFC chip ST25DV04KC (ISO15693 type 5).SDK Discovery based on CR95HF is used for development NFC interface. SDK included DLL for creating applications on PC.Can anyone recommend industrial (device ready for user use) NFC Reader that can communicate with NFC type 5 tags, connected via USB and supported by SDK for Windows and Android?Thanks!

I am using all 3 ADCs on an F765 to convert 16 channels of data at 50 ksps. Each ADC is configured to perform a sequence of conversions (5 on ADC1 and ADC2, 6 on ADC3), all triggered from the same timer. I have also configured them to ping-pong the data using the DMA. The ping-pong buffers reside in external SDRAM.This works fine, but, ofcourse, there is the problem of the data being scrambled, so it has to be de-interleved into linear buffers for each channel so that I can then perform signal processing on each channel.There is a lot of data to de-interleave (5000x2x2x16 bytes), and 100 ms in which to do all the required processing before the next buffer needs to be serviced. The de-interleaving routine takes about 39 ms after optimisation, so I only have 61 ms for the other filtering operations, which is likely to be a problem.The DMA doesn't seem to allow clever indexing to de-interleave on the fly...am I missing a trick?Is there something else I should be considering to get around

Project : STM32L476RG-Nucleo\Applications\X-NUCLEO-NFC04A1\FTM For read, you always add one to the result of the length read:  *msg_len = mblength + 1; Seems reasonable when mblengh is 255 , and you add one to read 256 bytes ,  which is the max mailbox size.But not after Init. As I clear the mailbox, and read it, mblength is 0, as expected. But I still read 1 byte ( = 0xFF) What is this byte? kinda confusing! Using you package code: ST25FTM_MessageStatus_t ST25FTM_ReadMessage(uint8_t *msg, uint32_t* msg_len) { int ret = NFCTAG_OK; uint16_t mblength = 0; /* Read length of message */ ret = NFC04A1_NFCTAG_ReadMBLength_Dyn(0, (uint8_t *)&mblength ); if( ret != NFCTAG_OK ) { return ST25FTM_MSG_ERROR; } *msg_len = mblength + 1; /* Read all data in Mailbox */ ret = NFC04A1_NFCTAG_ReadMailboxData( 0, msg, 0, *msg_len ); if(ret == NFCTAG_OK) { mailboxStatus = ST25FTM_MESSAGE_EMPTY; /* Trick to automatically detect the max frame length o

Hi, i used t programmed using ST-Link/V2, now my lab has brought a new STLink V3 SET could anyone advise how to programme and flash code using the V3? Can the V3 be use with STM32CubeIDE to program/ flash the code?

Hello community, I have a problem with new project creation, whenever I want to create a new project I come across this error: create minimal project failure: cannot read template source. reason: internal error i know the problem which is having a space in my user folder name which i don't wanna change because it might mess my registry files.so i'd like change the repository location to another place if it's possible.thank you for having me.

I created a new board using STM32L431CBT6. The initial programming of the board was successful. However, once a program was written, I found that it couldn't be modified again. I suspected it might be related to Boot settings, so I tried changing Boot0 to High, NRST to Low, and various other attempts, but ultimately I couldn't access it. I thought it might be because I didn't set Debug to Serial Wire in SYS, but it seems unrelated.I am using STM32CubeProgrammer as the tool. When I try to access the board using a Chinese-made (purchased on Amazon) ST-LINK/V2, I cannot access it. However, writing was possible on the first attempt with this device.Simply connecting it, the Serial number becomes corrupted, and it cannot be connected.  Therefore, to check if ST-LINK is properly connected, I change Shared to Enable.  Updating Media Then, the Serial number is displayed correctly. However, when I try to connect in this state, it says there is no target.So, when I revert Sha

I want to implement a custom bootloader and load the firmware through that. My board is STM32H750XB and according to the data sheet it says, it contains a single sector (sector 0) of 128kB which is user programmable. My question ,  is it possible to program the bootloader and the firmware separately to the same sector, because when I flash the firmware after flashing the bootloader, it erases the bootloader and writes only the application to the given memory address.

Hello,I have a question about X-NUCLEO-NFC08A1 Evaluation Board.The evaluation board is configured with a differential antenna by default, but I would like to change it to a single-ended antenna.Is there any guidelines I can use when making changes? Best Regards,  

This is my first time asking something in ST's Forum. I am trying to build class-D amplifier with STA309A codec from ST. I am using STM32 MCU as a Master Transmitter for audio. The codec has 8 input channels for serial audio data, LRCLK, MCLK & BCLK. As of my knowledge, I2S can only transmit in stereo mode. How do I play more than 2 channels for STA309A's Inputs. Apologies for my bad English.

We have a dial gauge in the center of the screen and are getting stretched-out images of the dial, What is the solution to keep it in 1:1 ratio?MCU-STM32F750TFT-50 PIN 800X480BIT DEPTH-16BITIDE-STM32CUBEIDE 

Hello together,does anyone know how I can implement multiple USB device classes on a STM32?I want to use the CDC so a VCP and the DFU class so I can communicate with my chip and drive an update if needed. I am working with a STM32L452RE.It must be possible, it is the standard functionality of every ST-Link V2/V3 debugger that exists.In the CubeMx you can not set this, is that documented somewhere? Unfortunately I haven't found anything yet.Thanks for your assistance!

Hi there, should anyone recommend an I2C module for communicating with STWLC-GUI ??I have one already, but I need one more.Thanks.