Solved

I have run into problems trying to get voice data from the MP34DT05-A PDM Microphone on the BlueNRGLP eval board. Specifically, and after spending a fair chunk of time (using the BLE_Sensor_Demo_BlueMSApp demo code as a starting point), it appears the ADC register is not being updated while talking into the PDM mic. I was using the KEIL memory window to monitor ADC memory addresses and was looking at the Downsample and Decimation data output registers, which render 0x00000000 and 0xDA880000 respectively. They never change despite applying sound. This leads me to believe that either the PDM microphone or ADC is not being suitably initialized (or something else...that covers the possibilities). Anyone have any suggestions how to slay this beast?Update 07-11-22: Not using Downsample (DS) so that is not of concern. I am using the Decimation Filter (DF). Also learned PDM digital data comes straight from the MP34DT05-A chip and ADC performs decimation (at least I think that's how it works).C

After playing around a bit and talking and googling some stuff is my vref wiring correct our should 3.3VA be removed as in some other examples

Hello,I'm trying to use FatFS with both USB HOST MSC class and SDIO.FatFS always tries to access the SD card whatever the drive number used in f_mount.May be I'm wrong with the path I use to access the devices : "0" for SD card, "1" for USB.Any help will be welcome. 

Hello,I'm pretty new in working with STM32WB-Chips and trying to implement a BLE-Application.I am using a STM32WB55 Chip and for initial steps I created a project using Cube IDE and a Custom Template according to ST's "Getting Started" - Series on YouTube (https://www.youtube.com/watch?v=CKYWy7LKL68&list=PLnMKNibPkDnG9JRe2fbOOpVpWY7E4WbJ-&index=16).This works in general and I can read and write characteristics using the BLE Toolbox App on my smartphone.Now I want to update a characteristic value from my main-function, e.g. to distribute new sensor data via BLE.I added the needed header files in my main and try to call the functions Custom_STM_App_Update_Char() or aci_gatt_update_char_value().The compiler gives me no warnings or errors, but calling this functions in the main loop leads to a HardFault during runtime.Stepping into showed that the HardFault occurs after calling the static void SendCmd()-function probably.Calling this functions from custom_stm.c

Hello im new to embedded design in general and have a simple question for the vref pins on my stm should i directly wire vref- to ground and vref plus to my 3.3v supply or is there another way this is done:grinning_face:?

Hi,I have attached code for .ino .cpp .h has changed to txt file attached here, please verify my code i get error server for erase function failure. and some time not working properly please assist us. please say how to solve this issue. my error was attached with image.

Dear Members,I am using STM32L4P5VGT, STM32CubeMX 6.9.1, and STM32Cube_FW_L4_V1.18.0.I am steaming data on UART using TX DMA. With the HAL driver, it works fine but do not like to use it due to processing and decided to use the LL driver and had a tough time making it work. It looks like the issue is in the header file supplied with CubeMX. I have to make the following change in the auto-generated file "usart.c" as below, where I have decremented the index.LL_DMA_SetPeriphRequest(DMA1, LL_DMA_CHANNEL_1, LL_DMAMUX_REQ_USART1_TX - 1);in functionMX_USART1_UART_Init, the first line. After the above change things worked.To make it simple, I have added a limited code of init of DMA, Interrupt, and User code to transmit the data. For UART - GPIO and its configuration-related code were removed.  MX_GPIO_Init();  MX_DMA_Init();  MX_USART1_UART_Init();  /* USER CODE BEGIN 2 */  LL_DMA_DisableChannel(DMA1,   LL_DMA_CHANNEL_1);  LL_DMA_SetDataLength(DMA1,&nb

Hello,I'm developing a USB-Host application (MSC / Fullspeed) with the STM32H743 µC (using STM32H743I-EVAL2 Board)The application works fine when using PLL3Q as clocksource.But when I use PLL1Q or RC48 as clocksource the USB "Core soft reset" timed out: OTG->GRSTCTL |= USB_OTG_GRSTCTL_CSRST; // Core soft reset   // Wait Core reset to finish, max 100 ms tout_ms = 100U; while ((OTG->GRSTCTL & USB_OTG_GRSTCTL_CSRST) != 0U) { if (tout_ms == 0U) { return ARM_DRIVER_ERROR_TIMEOUT; } tout_ms--; HAL_Delay(1U); } HAL_Delay(1U);I mapped RC48 to MCO1 to check if there is an 48MHz output and it is.I checked the RCC/USB registers but couldn't find anything suspicious.Does anyone has an idea what's wrong here?Thanks,Peter

Hello again,After configuring all of the peripherals and pins, I have run into another problem.  I need to enable the Azure RTOS but I don't have any selection for U5.  I am on the latest build now and I downloaded the latest FW package (1.3.0). I'm using the STM32U599VJT6.I see others talking about using it and there are videos about it so I must be doing it wrong.  Is there a package that I am not seeing is missing?  I am using Azure for an H7 project but it was a while ago so maybe I'm just missing something with this new chip! Thanks so much! Michael

I'm looking for a mechanical survivability spec for shock/vibration for the gyroscope MEMs sensors offered by ST, and was wondering if this information is available somewhere?Specifically interested in the A3G4250D and I3G4250D sensors. Is this information available?Thank you!

Hello,I'm Christian, and I'm new to working with the STM32H747 microcontroller. I don't have much experience with it yet, and I'm seeking guidance on how to get started. If anyone could provide some help in understanding how to work with this microcontroller, I would greatly appreciate it. Additionally, if you have any suggestions for learning materials that are beginner-friendly, I would be very happy to hear them.Thank you for your assistance.

Hello,I am interested in using the STM32U599 chip but I don't see any Nucleo boards based on it or even the 5A9 that use the standard footprint with the rows of headers along the board.  I was going to make my own board, to drop into an existing prototype that takes those, but I figured that I should go through the IDE first and make sure it can be setup properly.What I found is that unless I select the BGA package, you can't even start a project with this chip.  I'm interested in the 100 or 144 pin QFP so that I can quickly hand solder a prototype.  When will you be adding support for this chip in your software? Thanks!

Many thanks for your help!I have a custom STM32MP157c boards that works OK when the galcore.ko module is not deployed.When the galcore,ko module is deployed, the screen doesn't show up the usual image and after the boot image has been displayed, it stays black.From cat /home/weston/weston.log, it seems that something foes wrong with a signal 15 ([11:24:37.793] caught signal 15:([11:24:17.605] Output 'DPI-1' enabled with head(s) DPI-1   [11:24:17.605] Compositor capabilities:   arbitrary surface rotation: yes   screen capture uses y-flip: no   cursor planes: yes   arbitrary resolutions: no   view mask clipping: yes   explicit sync: no   color operations: no   presentation clock: CLOCK_MONOTONIC, id 1   presentation clock resolution: 0.000000001 s   [11:24:17.606] Loading module '/usr/lib/weston/desktop-shell.so'   [11:24:17.609] launching '/usr/libexec/weston-keyboard'   [11:24:17.612] Warning: support for depreca

I've been trying for a while to get DMA working on SPI, it returns an error when i poll the DMA so it stays in the while loop but I can't seem to figure it out and there is not much Info that helps me. Maybe someone can help me to get it working, my code is below and HAL settings are below.       /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2023 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* USER CODE END Header */ /* Includes -----------------

Hello,I have this project that I can debug pretty much normally in STM32CubeIDE 1.11.2, but when I switch to 1.13.1, it crashes almost instantly when I hit a breakpoint. Sometimes I will be able to do a few "step into" or "step over" before the debugger just exit without any error message. Debugger consoles does not show anything strange. Here is my debug configI am using a Segger J-Link Ultra+ as the debug tool (7.84e firmware version).The project is compiled for size so it can makes debugging problematic sometimes because it jumps at curious, but this issue is different, it just stop debugging for no apparent reason.

Hello I'm working with SPC560P40 and I tried to send CAN data but with any condition which I tried out, it has just some regular pulses that has no meaning. I saw all examples in SPC5Studio but I got same pulses. would you please help me out with this problem.Thanks for your attention

Hello, i'm starting to work with a ST25DV64 device and at beginning the read command of UID (Address 0x0018) just work fine. And i get the UID of the chip.But after implement some write commands (password,fast transfer mode, enable gpo,...) the chip now only return NACK after reading the UID. I removed all other commands, but reading of UID only return NACK.What happens to the chip? Is he locked? And how can i get him unlocked? Or is maybe the chip deadlocked?We are testing with the ST board ANT7-T-ST25DV64KC and we put some pull-up resistors with 10k.I have now 3 boards that are all "locked".  

I try to figure out what the correct UCPD clock frequency is.RM0456 in section 74.4.2 UCPD reset and clocks states:"The receiver is designed to work in the clock frequency range from 6 to 18 MHz. However, the optimum performance is ensured in the range from 9 to 18 MHz"However, in section 74.8.1 UCPD configuration register 1 (UCPD_CFGR1) it says:"It is recommended to use the pre-scaler so as to set the ucpd_clk frequency in the range from 6 to 9 MHz."I found no place where RM0456 clearly states from where UCPD kernel clock is derived.What is the correct UCPD clock range?STM32H5xx manual RM0481 has the same above inconsistencies. In section 11.4.12 Kernel clock selection (table 105) it clearly states that UCPD kernel clock is HSI (64MHz) clock divided by 4 but in section "56.4.2 UCPD reset and clocks" it says"transmitter is clocked with ucpd_clk clock, pre-scaled from the ucpd_ker_ck (HSI16)"OK, it is still 16 MHz, but STM32H5 has HSI64, not HSI16. This can be confusing.S

I want to see the result value in real time. like table format.(like stm32 studio live expressions)What should I do?

STM32L4R9AII6 generates 16 SPI clock pulses when I have selected data size 8 in STM32CubeMX.When I measure the SPI clock when I write a single byte to the SPI1 DR register it outputs 16 clocks.When I debug I can look at the SPI1 registers. The CR2 DS bits = 7. According to the datasheet this is 8 bits. But when I measure there is 16 clocks when I write a single byte to the DR register.If I change the DS bit to 3 it will output 8 bits.What is going on?

Hello,some of our boards do not boot after powering them. We realised that most of the time this happens, the 1.2V at VCAP1 and VCAP2 == 0V. At our boards the BYPASS_REG pin is floating. So there are two questions for us now:1. Could the floating BYPASS_REG  pin cause our Problems?2. does the BYPASS_REG pin have an internal pulldown resistor?We also realised, that if we add a 10µF capacitor to the NRST pin, the board will boot everytime. (Normaly there is a 100nF capacitor)Thank you in advance :)

I use TIM2 in Hall Sensor Mode andI want to use the unused channel 4 for PWM generation.There are no conflicts in CubeMX configuration.Are there any problems with the actual operation? 

I need to capture 8 x RS422 data and send them to abother unit via TCP/IP. We have designed a custom board for this. My questions are: 1. In terms of software programming side there is no difference between RS232 and RS422 right?2. Which example sample source code would be useful for me? UART or USART?thanks in advance 

Hello,I have no auto-completion in the expressions and live expressions windows. This is quite annoying because the complete variable names have to be typed in.In the editor window the auto-completion works fine.I know it from other Eclipse based IDEs that auto-completion in the expressions window is possible.How can I activate the auto-completion in the expressions window or is this not possible in the STM32CubeIde ?Regards,Thorsten

Hi STM, I really need your help. I have been trying non stop for the past 5 days just to display something on the LCD.Step1: I am able to BLINK LD2, LD3 on the board. Step2: I want to display something on the LCD. But seems like it is always black. I tried using touchGFX & IDE to display a button, it has no error. but the screen is the still black. https://youtu.be/AizWAlbU4Og?si=uYhhPJ3NZQZXQRtDSomeone please help me to at least start. JP5 is connected. JP2 pin3,4 is connect