STM32 MCUs

I'm trying to read a .JPG image file from my SD Card (FATFS) and want to use LIBJPEG for decoding it. Everything seems to be fine until I execute the **jpeg_start_decompress()** function. As soon as this ifunction is executed a UsageFault is generated on the MCU, does anyone know why would this be happening?Here is my code for loading the jpg image: void read_JPG_image(FIL* _fptr, uint32_t _width, uint8_t* buff){JSAMPROW buffer[2] = {0};uint32_t row_stride = 0; buffer[0] = buff; cinfo.err = jpeg_std_error(&jerr); jpeg_create_decompress(&cinfo); jpeg_stdio_src(&cinfo, _fptr); jpeg_read_header(&cinfo, TRUE); cinfo.dct_method = JDCT_FLOAT;

Hi,I'm using STM32H755 nucleo board and evaluating ADC. I'm using ADC1 and ADC2. I like to get 1.92MSPS per ADC (12bit). According to my understanding I need minimum 8 cycles for conversion and therefor I was using 15.36MHz clock rate. With these settings, I'm getting 960kSPS rate, which is half what I expected. Then I doubled clock rate to 30.72MHz, which gives correct 1.92MSPS per ADC. According to AN5354, maximum ADC frequency is 17MHz (LQFP144), which is much lower than my current setting. Can I use 30.72MHz clock for ADC and why it has to be double?

Hello,I have changed the program based on p2p_client, app_ble.c to a program in which it is only an OBSERVER or BEACON SCANNER Until now I have been able to run the scan function but I don't kn

I'm a software developer and love electronics, specifically making metal detectors. I'm trying to develop a new Pulse Induction metal detector and I'm using this development board (STM32F407VET6).Although I'm a software developer, I work with high level programming languages like Javascript and Python, so programming in plain C (register manipulation) is not easy for me, but I want to learn, so, I'm building the code with the help of AI (ChatGpt).The code below is supposed to generate 2 pulses with PWM inside a 1ms pulse period. One pulse is 100us (or the metal detector TX pulse) generated to PE13 and another is 500us (for the metal detector power supply charge pump) generated to PA8.I tested the pulse generation with an oscilloscope 100uS/Div and the first pulse is correct (100us) but it appears one time at the start and another at the end of the and it should appear only one time at the start of the period. I tried everything with

Is there any form of 3D graphics drawing support? I have a matrix of temperature sensors data which would be easier to view and understand their positions on the real world as 3D points. What I want to achieve is some kind of 3D heat map where each sensor is drawn on its own position based on multiple vertical cables and their color representing the actual measured temperature. Is that possible? 

Hi ST community!We have a custom OEM product that using STM32H753ZIT6 with external SDRAM (parallel mode) and NOR Flash  (QUADSPI mode) memories.In this particular project we are facing some issues with the TEXTS, more specifically the rendering of the texts.I attached a video to show this details.The text alternates between the correct content and the '?' character. On some screens the frequency is higher between the content and the '?' character, but on others it can vary up to 1 second.Normally when it happens means any special character was not defined properly at Touchgfx, but we double check it and everything is there.When we change a text we always follow this sequence (just an example): text.setWildCard(textBuffer); text.resizeToCurrentText() or resizeToCurrentTextWithAlignment(); text.invalidate(); After this effect w

I am really confused about the meaning of the VirtAddVarTab that is filled with number from 1 to NB_OF_VAR. My understanding is that is used to copy from one page to the other when the first is full. Anyway I had to save a structure to EEPROM and reload it from but I am no shure that what i'm doing is correct, even if it is working. My concern is that I'm not using this VirtAddVarTab to refer to the (virtual) eeprom locations. This is my code  void WRITE_STRUCT_EEPROM(eeStorage_t eep) { uint8_t LEE[sizeof(eep)]; uint8_t a, i; // MyData = sizeof(eep); a = 1; // dest source nofb memcpy(&LEE, &eep, sizeof(eep)); for (i = 0; i < sizeof(eep); i += 2) { res = EE_WriteVariable(a, LEE[i] | (LEE[i + 1] << 8)); a++; } } eeStorage_t READ_STRUCT_EEPROM(void) { eeStorage_t eep; uint16_t bdata[2]; uint8_t LEE[siz

My board is stuck with all write protection Bytes enabled.Please help thank you.  Running the following command fails to deactivate write protection. STM32_Programmer_CLI -c port=swd -ob WRP0=0-------------------------------------------------------------------STM32CubeProgrammer v2.19.0-------------------------------------------------------------------ST-LINK SN : 066DFF3632524B3043204154ST-LINK FW : V2J46M31Board : NUCLEO-F401REVoltage : 3.24VSWD freq : 4000 KHzConnect mode: NormalReset mode : Software resetDevice ID : 0x433Revision ID : Rev ZDevice name : STM32F401xD/EFlash size : 512 KBytesDevice type : MCUDevice CPU : Cortex-M4BL Version : 0xD1UPLOADING OPTION BYTES DATA ...Bank : 0x00Address : 0x40023c14Size : 8 Bytes[==================================================] 100%

Hello,Based on p2p_client, I want to create an observer program where the device scans the broadcaster/ beaconI set the scan parameters first, then I enable scanand an error occursi used wireless stack = stm32wb5x_BLE_Stack_full_fw.bin----------------------------------------------------------------------------------Error: Set scan parameters failed (Status = 0x01)----------------------------------------------------------------------------------Is the way I did it not right?If the community has an example of a pure ble observer/ scanner program without connecting to another device,

Hi All, I need to obtain an artifact with the name present in some costant in "main.h". In other words, my project is called "TestProject" and main.h I have these costants: #define GUI_MAJOR_VER 0 // Major #define GUI_MINOR_VER 1 // Minor #define GUI_RELEASE_VER 3 // Release I would like to ahve a final executable named "TestProject v013.hex" This means that every time I will change the #defines in main.h, output file will change automatically with a new numeration. Does someone has some suggestion? or better, an example? thanks in advance for your help.    

Question moved from this post. I do this and upload the project but the stm32h747i-disco screen does not work

Hi everyone,I plan to build 0-60 volt 30 Amps adjustable (menu driven) lab power supply both ac and dc(battery) inputI'm new at st mcu and need some advise about choosing right device both controller and user interface.thanks inadvance.    

Hello,For my project Im checking on a data request by using DMA and UART Idle interrupt. After a few minutes my while loop just stops executing. The code keeps executing the USART1_IRQHandler and doesn't return to the main code anymore. If Im not using DMA this doesn't happen. Does anyone know how this happens and if it can be fixed?Here a few code snippets:static void MX_USART1_UART_Init(void) { /* USER CODE BEGIN USART1_Init 0 */ /* USER CODE END USART1_Init 0 */ /* USER CODE BEGIN USART1_Init 1 */ /* USER CODE END USART1_Init 1 */ huart1.Instance = USART1; huart1.Init.BaudRate = 230400; huart1.Init.WordLength = UART_WORDLENGTH_8B; huart1.Init.StopBits = UART_STOPBITS_1; huart1.Init.Parity = UART_PARITY_NONE; huart1.Init.Mode = UART_MODE_TX_RX; huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart1.Init.OverSampling = UART_OVERSAMPLING_16; huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart

Hello,I hope you are doing well.I am currently facing critical issues with my RAK3172 module and STM32Cube Programmer setup and urgently need your technical support. Here are the details:1. RAK3172 Module Issue (LoRa P2P Communication)Initially, the module booted up correctly, but now it does not enter boot mode.I receive a "baud rate not detected" error when attempting to communicate.The RAK Firmware Upgrade Tool fails with a device timeout error, and STM32CubeProgrammer does not work either.Despite this, I can still read the firmware version from the port, so I’m unsure if the IC is damaged.2. ST-Link & STM32Cube Programmer IssueThe device only connects in Hot Plug mode when I press the reset button.In normal mode, it

Hi, [PN]: STEVAL-CTM009V1 with F446RE[VERSION]: 6.3.2[TOOL]: MC SDK[DETAILS]: just can't get the engine to turn[EXPECTED BEHAVIOR]:the engine turns[HOW TO REPRODUCE]: see below...First:There is a bug in RevUp—see the picture below. When changing the torque current values, the input value is automatically reset to 0.Second:I identified the motor parameters using the IHM08M1 board and configured the machine accordingly.The machine successfully rotated!Third (CTM009V1 Hardware):I have concerns regarding the current measurement using the ICS. I suspect that they are either not measuring correctly or that there is an underlying issue.One aspect that frustrates me is that a data stream is not displayed unless MotorPilot is started.I would like to send a current through a test-cable to verify whether the ICs are functioning co

I need sample code for FOTA update through UART please as soon as possible share 

I am using STM32F407VG in my project temporarily. The objective is to transmit audio data over ethernet which is received in this mic and received audio from the other end this side having stm32 as the MCU.  For Mic, I am using SPH0645. But I am unable to sample the audio correctly. I am facing the same issue as in the following link. https://community.st.com/t5/stm32-mcus-products/unexpected-behaviors-in-dma-buffer-for-i2s-mems-microphone/td-p/725679my_code:uint16_

Hi，I am using an STM32G070CB. while using the ADC, I found that the accuracy of the data I get is very poor, the data returned is always returned as 0xXXFF, but the data for VREF and GND is correct. I think I must have something wrong with the settings somewhere, but I have changed the modes a lot and I still get data with terrible accuracy.Please help to see where the settings are wrong.Thanks.Here is my setting:

HiI am trying to migrate software from a stm32l4s9 to a STM32U585.How can I transfer data from from Ram to an MDF filter?Also the L4s9 withFSDM1_Channel2->CHDATINR = (outI_2 >> 16);I was able to feed the data into the filter.Is this also possible with the MDF on an STM32u585?if so how?Thanks for your helpFelix

Hello,I have a custom hardware using STM32H725 board, sometimes(2/10) I am trying to debug the board using ST Link v2 and  It is not getting connected and showing me the error to connect if device supports debug authentication enable it.in order to connect to it I remove the USB cable reconnected and selected the mode as power down mode with reset mode as  core reset and it was able to connect. I then erased  the whole chip and then reconnected in normal mode using software reset mode and it was able to connect.I compared the option bytes  when it was not able to connect and also when it was able to connect in the power down core reset mode and found no difference,Now my question is what could be the issue-is it due to the software code which is making or is it something related to the hardware or something other than option bytes which is being changed ? pleae let me know your suggestions to debug this further

Hello,I am currently evaluating STM32s for use in professional developments.I'm going to substitute them for Microchip's AVR DB family microcontrollers.I still have one point to evaluate: is there an EEPROM built into the STM32s that allows parameters to be saved?Thanks for your clarifications

Hi,I am working on a LoRa point-to-point communication project using the STM32WLE5CCU6 chipset, referring to the SubGHz_Phy_PingPong example code. The communication works fine with SF7, but I’m encountering issues when transmitting on SF12 with a bandwidth of 125 kHz. Rx errors occur at the receiver, and only one packet is received in 5 tries.The distance between the transmitter and receiver is less than 3 meters."Setup Details:Chipset: STM32WLE5CCU6SDK Version: STM32Cube_FW_WL_V1.3.0Communication Ty

Hello, everybody! As you can see from the name of the subject, I am currently working on a bluetooth communication between an stm32-nucleo-l476rg and an extension board x-nucleo-wb05kn1. To this day, I have a code that seems quite coherent and functional. However the problem lies in the configuration of my boards, indeed, the configuration in CubeMX is more idfficile than expected between this board and the extension. I’m looking to use USART and I wanted to learn about the configuration of my TX and RX (pin PA2 and PA3) but I think missing parameters because the connection is still not done. In addition, I have the impression that my wb05kn1 is in 'sleep' mode and I don’t know how to reactivate it. Every attempt to verify connection is a failure and I have no feedback from my module. Do you have solutions for the software settings and module focus? Thank you in advance!

Hi, while using the SVD (Version 1.8 - but in the 1.9 zip this file still states 1.8) for the H743 I noticed some errors and have patched them for my code generation. Some of them caused me trouble for hours until I noticed that the SVD and the RM did not agree.I'll attach the patches here. I tried to attach the patches here, but .patch is not accepted, renaming it to txt still fails...Fixes for the CAN module: https://pastebin.com/1X0v7iS4Fixes for the TIMER module: https://pastebin.com/rTEP4M3WFixes for the ADC module: https://pastebin.com/ED99CUTBFix for one TIMER interrupt:

@STTwo-32, I also noticed issues in the EXTI.Sample:stm32h7s7xx.h,   &(EXTI->PR1) == 0x58000088STM32H7S.svd, &(EXTI->PR1) == 0x58000020When should we expect the upcoming release (in 2 month?)?Also, are there public script which validate that stm32*.h and .SVD do match?