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i am working on LIN protocol and i am looking for a LIN Library that works on stm32 I am using stm32L476RG 

Hi, I am using stdatalog-pysdk on a Raspberry PI with Raspberry OS to acquire some data on STEVAL-STWINBX1 and send them to the cloud. I wrote a script in python that sends a number of messages and in every message I start the SensorAcquisitionThread() defined in the HSDLink library. However, when I close the comunication using hsd_link.stop_log() function, the program crashes and continuous printing errors as shown in the following picture:   I noticed this problems seems related to the lib_usb library closing procedure after an acquisition. I found that some other users in GitHub have similar issues, but now I'm stucked on a work project in which I use both Raspberry and STwin.box. Do you have any idea when the new version that fixes this bug might be released? Do you know if this issue is related to only Raspberry 4 or to only Raspberry PI OS? Do you think that with Raspberry Pi 5 and Ubuntu the library will works correctly? Thank you! UPDATE: also tried on

The problem only happens when a constant stream of data is being send to the UART. When I update my firmware sometimes DMA won't work. It is hard to debug when it only happens when updating and not every time. This post is exactly the same issue as mine: DMA issue post In the first image below are the registers when DMA won't work. The second image are the registers when DMA is working correctly.I looked at every register and tried manually resetting and staring the DMA, but still sometimes after an update DMA won't work. I can;t find the source of why this happens and why it won't work even when I hardware reset the controller. I looked at the HAL datasheet and validated the steps needed for DMA. I'm really out of option. If someone has an idea on what to check or knows a solution (maybe don't use DMA but interrupt?).problem no problem UART/DMA init hdma_uart5_rx.Instance = DMA1_Stream0; hdma_uart5_rx.Init.Channel = DMA_CHANNEL_4; hdma_uart5_rx.Init.Dir

Hello, Good Morning Can i design SMPS using HVLED007 which should work on universal input and should provide 24v 2amp at its output it is PFC too. The most challenging part is to calculate and wind flyback transformer. I've some transformer bobbins and cores with me but dont have complete data i have calculated data manually like MPL,AE etc. but still some data is unknown like core material. Is there any SMPS application note for this.

Hello everyone, I'm currently using the STM32H745BIT6 microcontroller and I'm having difficulty configuring the system so that the M7 core can use internal memory (Internal RAM/Flash) to store data from TouchGFX. I would like to avoid using any external memory (external RAM or Flash). I'm not sure how to properly configure this. I would greatly appreciate any support or guidance. Thank you ! 

hello, how can i know the first pin of STM32H750VBT6 chip for proper connection on board   

Dear Gfx Team,Could you please add a 'Clone' option when right click on a Typography ?Newly created Typography is then a carbon copy of the original. Thank you. 

I created my first UI using the TouchGFX software but after when I opened the file in CubeIDE, Build the project and try to Debug it. I am getting this IssueIam New to STM32. Can someone help me?I used this youtube video from ST as reference(2194) How to TouchGFX: Creating my first GUI with TouchGFX Designer for STM32 GUI applications - YouTube

Hi all,For my GUI I need several circle and box progress widgets in different sizes that have a transparent background, e.g. only showing the actual progress "line" and nothing else. So far I achieved this by simply choosing a transparent PNG as background image and that works fine. However, due to the many widgets and sizes I use quite a lot of transparent PNGs which start to add up in flash size.Having PNGs using space for practically not displaying anything feels wrong, but It seems like the progress widgets only can take images as backgrounds and actually do need an image (there is obvious option to leave it blank). Is there a more flash space efficient way to achieve circle progress and boxes with transparent (or no) background?Thanks in advance!Sascha

Hello!This is written that Touchgfx widget 'Text Area' if has enabled the action 'WIDE_TEXT_WORDWRAP' then the call 'getTextWidth()' will return the width of the widest line but it returns the width of the total text area.Can you please check how to improve this?Thanks in advance!Best RegardsHafsa

 Hi ! I am using MT25Q128 on LCD screen with stm32f746 and the image comes out fine.If I use MT25Q128 instead of MT25Q256 in memory, the image is not displayed.The program modification is modified for MT25Q256 in Driver->BSP->stm32746g_discovery_qspi in cubelde.Please help me if I need to modify it in touchgfx as well.

Hi I am trying to run freeRTOS on STM32f407 so I want to know at what frequency my clock will run let me share you my clocking diagram too. another doubt how to enable SysTick_Handler. other external interrupt I have enabled like this  NVIC_SetPriority(TIM2_IRQn, 0x00); NVIC_EnableIRQ(TIM2_IRQn); NVIC_SetVector(TIM2_IRQn, (uint32_t)&TIM2_IRQ_Handler); Note : #define configSYSTICK_CLOCK_HZ ( configCPU_CLOCK_HZ ) #define configCPU_CLOCK_HZ ( ( unsigned long ) 16000000 ) is it correct B.R Ashish

Hi all, Just a question, I have one stm32wl RAK3172 chip, on this chip I have a stm32f4 connected via UART like thatSTM32F4 UART2             RAK3172 UART1 PD6               ---->            PB6.   PD5              ----->           PB7   I'm trying to communicate with ST UART bootloader without success. I've put my RAK in bootloader mode (I'm sure because I'm able to detect it with stm32cubeprogrammer mode uart connected to PA2PA3) My question is can I use PB6 and PB7 on my RAK to use uart bootloader or should I write custom bootloader to use it because basiclly stm seems to only use PA2 and PA3  

Hello,I am trying to use PC15 as GPIO input on the STEVAL-PTOOL4A. I configured it using CubeMX with pull-down resistor however the pin status is not changing in the software. I am sure my switch works well (checked on oscilloscope) and the LSE is disabled. Just I generated the code using MC Workbench and configured the PC15 as input mode. Normally it should be configured for DIR signal as per the datasheet. In addition, I have found that the J13-5 (which normally should be connected to PC15) is always at 3.3VIs there any additional configuration that should be made?Thank you for your support 

Currently there is no appropriate documentation regarding the SPE module in the GTM. Is it discontinued? If anyone has a any good example regarding the SPE implementation or any application note regarding SPE. It would be helpful. 

Hi,A small but annoying bug with STM32CubeMX 6.14.0 with H7 package 1.12.1.  Every time I change anything in the LWIP general settings (e.g. DHCP enable/disable), the PHY setting changes by itself from USER_PHY to undefined. This is a nuisance as if you generate code without realizing, some files are deleted meaning you lose user defined code blocks.Example file attached.On a side note, ST please add a KSZ8081 PHY option.  Seems to be commonly asked for.  The code is 95% the same as the LAN8742 option.  I have attached a KSZ8081 example to show how similar it is.  Or at least abstract the PHY function call names so that just the part number specific function definitions need to be changed (as is done in the EthPHY.h example attached.The USER_DEFINED code template that is generated is not much use.  It does not allow returning error for init failure.  It also does not have access to the netif or PHY register read/write functions.Thanks

Hello, I'm working with the AEK-MCU-C4MLIT1 board, which features the SPC58EC80E5 MCU. While using UDE STK 5.2, I noticed that the JTAG connection is always successful, regardless of the password set to unlock it. This suggests that the JTAG password lock is not yet enabled. What would I have to do to enable the JTAG password lock? Thanks!

Hi ST Community,Are the NC pins completely isolated from the device. Wishing to know if there would be a problem with them being driven, pulled to VCC or to VSS. Thanks!

Does the STM32H743XGH6 have a pull-up/pulldown resistor built into the JTAG pin?Is it necessary to add external resistors?We ask this question because the AN4488 application note does not cover this product.

Hello ST experts, i need help about using STM32H747i-discoI'm testing Uart Tx(DMA)-Rx(Interrupt). My goal is 10Mhz uart tx-rx.The problem is that i success 750khz, but fail to Rx when baudrate 1Mhz~10Mhz. I set the disco 480Mhz setting (hw SB setting done for SMPS -> LDO).Uart8 peripheral clock is 120Mhz(Max). Uart8 Oversampling changed 16 -> 8 sample.So i can set uart8 baudrate up to 15Mbps. I connect STM32H747i-disco CN6-D0(PJ9 uart8-rx) to CN6-D1(PJ8 uart8-tx).So if i run uart8_tx -> uart8_rx will catch.I have testing uart gpio speed low to very high but it is not work for my case.Success at 750khz. Fail at >1Mhz. Need some advise.Thank you. 

Hi,What could be wrong with BLE_p2pServer example project import here? Happens with other example projects as well. Images should have all needed information like steps to reproduce, board version, CubeIDE version etc. Operating system is MacOS Sequoia 15.3.2.      

Hello! This is my first post here. I'm currently designing a DIY loop pedal for guitar, which basically records samples of audio and plays them in loop.I'll be using a STM32H743VIT6, embedded on a WeActStudio dev board. The audio CODEC is the PCM3060. I'm aiming for 24bits resolution with 44.1kHz sample rate, 256Fs.I don't know much about I2S in general, so this is what I've pictured: I should setup the ST as master full-duplex, so it can receive from the CODEC and transmit to the CODEC at the same time (the looped audio, when it has finished recording). This is what I've setup so far on CubeIDE:(both DMA requests' data width are set to Word)What's confusing me is the "Error between Selected and Real". Will it cause significant distortion/noise? I tried looking at the clock tree for some kind of configuration, but I didn't find something like a PLLI2SCLK (which I've found on a STM32F411). 

I'm trying to make genuine STLINK-V3MINIE to work, but without success.The target device is STM32F103C8T6.VCC is connected to T_VCC (pin 3 of STDC14)SWCLK is connected to T_SWCLK (pin 6 of STDC14)SWDIO is connected to T_SWDIO (pin 4 of STDC14)RESET is connected to T_NRST (pin 12 of STDC14)GND is connected to GND and GNDDetect (pins 5, 7, 11 of STDC14)STM32CubeProgrammer is properly detecting STLINK-V3MINIE, even shows voltage of the target.But when I try to connect to target, it gives message:Error: No STM32 target found! If your product embeds Debug Authentication, please perform a discovery using Debug Authentication This is text from console: 12:56:46:283 : UR connection mode is defined with the HWrst reset mode 12:56:46:837 : ST-LINK SN : [redacted] 12:56:46:838 : ST-LINK FW : V3J16M7 12:56:46:838 : Board : STLINK-V3MINIE 12:56:46:838 : Voltage : 3.29V 12:56:46:839 : Error: No STM32 target found! If your product embeds Debug Authentication, please perform a discovery usin

Hello, I'm using an STM32C011J6M6 with the Arduino IDE to register with theST25DV64KC-IE6S3 's EEPROM. I previously used the ATTiny85 and would like to replace it with the STM32C0 to maintain the entire solution with ST components. I made some changes to the code but I can't register with the SDA/SCL of the STM32C0. According to the datasheet, I should use pin 8 as SCL and pin 1 as SDA, but the registration with the EEPROM isn't working, I tested the eeprom address with ATTiny85 and it is 0x53In the project with the ATTiny85, I didn't need to declare the terminal to perform this registration. Does anyone have a programming example that communicates via I2C?#include <Wire.h> #include <EEPROM.h> #define EEPROM_ADDRESS 0x53 #define START_ADDRESS 0 int currentAddress = START_ADDRESS; int counter = 0; void setup() { Wire.begin(); } void loop() { writeToEEPROM(currentAddress, currentAddress); currentAddress++; counter = (counter > 499) ? 0 : counter + 1; cur

Hi,I'm using STM32G071RBT6 microcontroller where I need the fastest ADC time sampling as possible. I'm sampling 12 ADC channels. One of them is Vbat.According microcontroller datasheet "5.3.22 Vbat monitoring characteristics", the minimum ADC sampling time when reading the VBAT should be ts_vbat = 12us. This is a limitation for my application and I would like to reduce this time. My questions are:1. What is the technical reason for this minimum ts_vbat = 12us, while others like "ts_temp" or "ts_vrefint" have much lower values?2. Are there any workaround to reduce this time?3. Which could be the impact in the "Error on Q" if we configure in our application the ts_vbat = 10us? Thanks in advance,Marco.