Solved

Hello, I am looking for a solution to my problem.I am using an STM32C031 to light LEDs using SPI signals.I am using a connector to connect the STM32 mounting board to the LED mounting board. The connector connects the DC power supply and the SPI signals DATA and CLK of the STM32OUT.When this connector is plugged or unplugged in several times, a phenomenon appears in which all of the connected LEDs blink abnormally. Verification of the waveform revealed that the waveform was abnormal at the SPIOUT of the STM32. This abnormal waveform cannot be corrected without turning the power of the STM32 itself on and off.We investigated the possibility of correcting the problem programmatically and found that changing the SPI baud rate from 3 MBits/s to 1.5 MBits/s did not produce the abnormal waveform at the active wire insertion/withdrawal. However, I am not sure if this is a fundamental solution.Is it possible that this kind of SPI baud rate setting changes the behavior when physical damage is i

Hello,I am trying to find available solutions for below requirement.I am using STM32H743 MCU in a design and I want to add external SRAM of 128Mbytes to the design.I understand can do this with FMC, but the problem is available pins for the FMC are conflicting with the requirements of the other peripherals.I read the documents and found that there is a possibility of extending the RAM with Quad-SPI, but it is not clear to me when it says, "Can't be written to the memory when it is configured memory-mapped code execution mode". I am open to study available options, it would be appreciated, if anyone can suggest any options, share their experience with a similar situation. Thanks

I want to use the LCD Display in the ST25DV Discovery kit "MB1283" Motherboard to measure the harvested energy(Voltage and Current) from my custom ST25DV04K board with Antenna. I know how to select the Energy Harvesting display (with the Micro USB connected to external power) to display harvested energy with the ST25DV_Discovery_Ant provided in the kit, but what pins on the J4 "ST25DX" 14-pin Extension Connector (or elsewhere on MB1283 motherbard) do I need to connect from my custom board to measure / display Energy Harvest?

Hi,I have two custom boards using the same OCTOSPI HyperFlash and for some reason the memory fails to run at higher speeds with U5-board.Board 1-H7 MCU at 550 MHz-OCTOSPI at 160 MHz works fine! (max clk is 166 MHz)Board 2-H5 MCU at 160 MHz-OCTOSPI at 160 MHz fails in W/R.... (works fine up to 110 MHz)Could there be any specific reasons why the U5 cannot handle the OCTOSPI running at 160 MHz, which in this case is the same speed as the MCU clock?

Hello everyone. I am getting started with SPI and am here with what I believe to be a pretty simple mistake or oversight on my part that I am just not seeing. For the first part of this project, I wish to create a file named "write.txt" on my SD card using just my code in the NUCLEO-F411RE [though I believe the board I use doesn't make much of a difference as long as it is in the STM32F family(?)]. I am using SPI1 for this project (I disabled the LED attached to the SCK pin) and have decided to use pin PB2 as my CS--set the pin as a standard I/O). Here is my code: my main.c file:  /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "fatfs.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE END PTD */ /* Private define --

Following on from Solved: Cannot connect STWBC86 to WPSTUDIO V1.8.4 - STMicroelectronics CommunityI am still getting the "Unable to find an [TX]WBC86 device"' message when' I try to connect.Originally the log file just showed the 'Failure to load DLL' messageI  installed all the Visual C++ redistributable versions (2005/2008/2010/2012/2013/2015, x86 and x64) as suggestedThe log file now shows read/write errors when trying to contact the boardI made a capture of the I2C bus on the board which is below, followed by the WPSTUDIO (v 2.2.5)  log file [{"Type":1,"Date":"2024-04-30","Time":"11:54:57.263 AM","ThreadId":"1","Message":"STSW-WPSTUDIO V2.2.5","TypeToView":"INFO"}{"Type":1,"Date":"2024-04-30","Time":"11:55:06.200 AM","ThreadId":"16","Message":"ConnectionType: ADDRESS_SIZE_2_BYTES bytes","TypeToView":"INFO"}{"Type":1,"Date":"2024-04-30","Time":"11:55:06.201 AM","ThreadId":"16","Message":"ReadChunk: 240 bytes","TypeToView":"INFO"}{"Type":1,"Date":"2024-04-30","Tim

I'm using STM32F446.I'm generating PWM signals using TIM1 and TIM8 (on APB2, which runs at 90MHz, and 180MHz for the timers).I'm also generating PWM signals using TIM4 and TIM12 (on APB1, which runs at 45MHz, and 90MHz for the timers).I start each PWM independently, so their starting edges are not synchronized, but this is not the point.TIM1 and TIM8 are "in sync" in the sense that the shift between the two signals remains perfectly constant, with no drift whatsoever.TIM4 and TIM12 are also "in sync" in this sense.However, TIM1-8 and TIM4-12 are not in sync with each other; their relative phase shifts around in an unpredictable way, and quite quickly. I'm not sure whether it's just jitter (i.e. the drift averages to 0 over a long period of time) or the drift diverges.Of course I'm prescaling TIM1-8 by 2, so that the counting frequency is the same as that of TIM4-12.Even if I change the APB2 prescaler so that the two buses are at the same frequency, the out-of-sync behavior persists.I w

G'day All,Can someone please identify an ST Component marked as follows,293ST   MZ2908

HelloI have a custom board with the st25r3920B. I want to operate this board in CE mode.So I set RFAL_FEATURE_LISTEN_MODE to true. But there is a difficulty because there is no sequence or example code for how to operate in CE mode.Where should NDEF data be set and how do I set AID?Is there any working example, or documentation to implement card emulation? 

Chào bạn,Tôi đã thiết lập kết nối theo sơ đồ và tôi đã tải mã trong tệp đính kèm nhưng tôi không thể đọc dữ liệu từ EEPROM. Địa chỉ M24C02 của tôi được đặt thành 0xA0.Ai đó có thể giúp tôi xác định vấn đề? Cảm ơn rất nhiều.  

Hello,  I'm trying to getting started with STm32429I-EVAL1 board with CubeIDE.I coded a simple hello world program and built it, then I encountered error that "ST-Link is not in the DFU mode. Please restart it." I did followings to solve it:- restart the board- unplug then plug the all cables (PSU, ST-Link V2, and USART)- restart CubeIDE and rebuild the prohect None of them worked, I don't know how to enter the DFU mode.Also, I cannot find Port(COM&UPT) in the Windows device manager even I connected USART cable.All the cables are connected into USB port on the PC. Can anyone help me?

Here is what I've done: When my microcontrollers receives a sleep request from CAN, it goes on StandbyMode as shown below: Fisrt I disable CAN peripherals: can_lld_stop(&CANDRIVER1); can_lld_stop(&CANDRIVER2); Then I disable clock and interrupts: SPC5_PIT0_DISABLE_CLOCK(); SPC5_CAN_SUB_0_M_CAN_1_DISABLE_CLOCK(); ...... irqIsrDisable(); Finally it enters in STANDBY_MODE: if(SPCSetRunMode(SPC5_RUNMODE_STANDBY0) == CLOCK_FAILED) { SPC5_CLOCK_FAILURE_HOOK() }It wakes up when I apply a 5V on wake_up pin.Before doing all this procedure, I have already written some data to internal SRAM.Now when my microcontrollers wakes up, all SRAM's data are lost. I have tried two methods: 1) I modified the linker's file as shown, in order to reserve 4 bytes for my new backupsram : MEMORY{.... ram : org = 0X400A8004, len = 192k - 64k backupram : org = 0x400A8000, len = 0x04.....}//define size, start, end ( for example __backupram_end__ = ORIGIN(backupram) + LENGTH(backupram);SECTIONS {.......sta

Hello,I'm developing an application on the NUCLEO-U5A5ZJ-Q. I need some pins to stay high while the microcontroller is in Stop3 mode.The Datasheet suggests to use internal pull ups, because the GPIO peripheral is not active in Stop3 mode. For this reason, I have configured the GPIO as input and with internal pull-up before entering Stop3 mode.I've used the following functions:   LL_GPIO_SetPinPull(GPIOC, LL_GPIO_PIN_6, GPIO_PULLUP); LL_GPIO_SetPinMode(GPIOC, LL_GPIO_PIN_6, LL_GPIO_MODE_INPUT); It works and the pin stays high. However, whenever the microcontroller go into Stop3 mode, the GPIO voltage goes to zero.Any Idea? Am I missing something?Thank you in Advance

Hi Community,I'm new to working with STM32 microcontrollers and I'm encountering a challenge when transmitting data through SPI on my STM32 Nucleo board. I'd appreciate some guidance from the experienced members of this community.My Goal:Transmit the value 6 (binary: 0b10) using the SPI interface.I'm utilizing the HAL_SPI_Transmit function for data transmission.The Problem:Regardless of the data I send, I consistently see a doubling of the value on my logic analyzer. For example, sending 6 results in seeing 12 displayed. It seems like a constant shift is happening, and I'm unsure of the cause.My Code Snippet:Cconst uint8_t Value1 = 0b10; while (1) { HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, RESET); HAL_SPI_Transmit(&hspi1, (uint8_t *)&Value1, 1, 100); HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, SET); HAL_Delay(2000); }Attached Screenshots:Logic Analyzer ViewCubeMX SPI Configuration    Seeking Assistance:By reviewing the screenshots and considering my code, I'd be incredi

I would like to connect a stm32wb55 as a BLE client and a stm32wb15 as a BLE server ? Is there any example how to make a point to point connection between these microcontrollers ?

I have a board that uses the H743 and have been having major problems with the USB side of things. I've only just realised that I left VBus floating all this time, so I'm assuming that's a major cause of my issues.. The board I have is designed as a solder on stamp, and has a fixed 5v input that powers multiple LDOs etc. The problem lies in that I don't really want to sacrifice one of my castellated edge pins for vbus sensing, but the stamp isn't always connected to USB so I cant simply connect VBUS to 3.3v, can I?  The board is always "Self Powered", ie the 5v from USB is not directly connected to the main power in. Is there any way to trigger the VBUS pin only using the data lines? 

Good morning to all,I’d like to ask your advice.I have to insert an external RAM for the framebuffer because the internal one is not enough for LCD that I will drive (LCD-TFT LVDS 7 inch 1024x600).Which external RAM do you recommend? Could a QuadSPI work?

As shown in the figure, can we change the pull-up resistance of SCL and SDA from 2.2k to 1k?What is the impact on TOF (VL53L5CX)? 

Hello ST Community,I am working on a project using an STM32 microcontroller with USB CDC class for communication. I am using the CDC_Transmit_FS function to send data over USB, but I am looking for best practices to handle the completion of data transmission effectively.Current ImplementationIn my current implementation, I am transmitting data using the following code:  char usb_buffer[64]; snprintf((char *)usb_buffer, sizeof(usb_buffer), "Hello, World!\r\n"); while (CDC_Transmit_FS((uint8_t*)usb_buffer, strlen(usb_buffer)) == USBD_BUSY) { HAL_Delay(100); // Delay to allow USB stack to process }  While this works, it is not efficient as it relies on a blocking delay which may not be optimal for all applications.QuestionsNon-blocking Transmission: What is the best way to implement non-blocking USB transmissions using CDC_Transmit_FS?Completion Callback: Is there a way to use a completion callback to notify when the transmission is complete?Handling Busy State: How c

Hello, I've been using the Nucleo-F446RE to program a stm32f4 series chip using the Nucleo's onboard ST-link capabiltiies. So far I have managed to get it to link and work in CubeIDE, but in CubeProgrammer it's giving me the following issue (attached screenchot): This is strange as my hardware setup works for CubeIDE, but not CubeProgrammer? As another bit of info, I had to go to a slightly older revision of CubeProgrammer and IDE for my current project, but before switching to this older version my CubeProgrammer was able to connect to my setup with no issue and the same settings. Any guidance or tips would be greatly appreciated.

 Description of the system-memory-stored manufacturing-time-acquired constants for temperature sensor (TS_CALx) and VREFINT voltage (VREFIN_CAL) are given for certain VDDA voltage.However, what's important here is not VDDA voltrage but the VREF+ voltage used for taking those values.And, while it may well be that VDDA=VREF+ for the production testiong (and in some packages this is inevitable), if this is the case, this too ought to be said out explicitly with those parameters in the datasheets.This, I believe, is pertinent to *all* STM32 datasheets (except some of the value lines which don't have these constants), or most of them.JW

Heyho,got my custom board running, only (minor) problem until now:internal analog temperature sensor (ADC3) value seems to be off, showing something like ~60°C,while an external sensor shows about 30°C."Finger test" confirms rather the 30°C.I have the exactly same code running on H723 Nucleo and H735 Disco, the values I get from these make sense.ADC3 is working, I'm measuring about 7 supply voltages on the board and the internal Vref, all these values are close to perfect.The only difference:VREFP pin is connected to an external voltage reference with 3.0 V, VDDA is 3.3 V, compared to the Vref 3.3V on the ST boards.So how does this affect the temperature sensor?Even with a factor of (3.3 / 3.0) the measured temperature is still far off.Here's how temperature is calculated, input is an averaged float from ADC buffer (I checked that this value is close to a single raw ADC value):/* convert averaged float ADC value to temperature */ float ConvAdc2Temp(float flAdcTemp) { /* calculate

Hi,I have not developed graphic applications before and am trying to figure out how do I select an STM32 micro for a touch-display application using TouchGFX (if relevant to the question).The display I am looking at has an SDI interface and this is the link to the product page: 3.4" DSI Round Touch Display (800x800) | The Pi HutAnd this to the Wiki: 3.4inch DSI LCD (C) - Waveshare WikiThank you 

Hello, I am slowly going crazy! I get Zero and only on Channel0! other channels are OK. Can somebody help me?

Hi. I'm not a English speaker. Sorry for my poor English.​My code including EITHER I2C or SPI works successfully on STM32F303K8T6 Nucleo Board. However, with my code including BOTH I2C and SPI , Only SPI functions work correctly ,but I2Cs don't.​Using a ocsiloscope, It was found that voltage levels of I2C pins don't fluctuate at all when SPI initialization code exists. Is it impossible to use I2C and SPI function at the same time?#include "main.h" #include "dac.h" #include "dma.h" #include "i2c.h" #include "spi.h" #include "tim.h" #include "usart.h" #include "gpio.h"   int main(void){ MX_GPIO_Init(); MX_DMA_Init(); MX_I2C1_Init(); MX_USART2_UART_Init(); MX_DAC1_Init(); MX_DAC2_Init(); MX_TIM6_Init(); MX_SPI1_Init(); MX_I2C1_Init();   uint8_t aTxBuffer = 0x3F; //some command to send HAL_I2C_Master_Transmit(&hi2c1, DEVICE_ADDRESS, (uint8_t*)aTxBuffer, 1, 1000); }The Initialization code was generated by CubeIED Device Configuration Tool.