Solved

Hi @Peter BENSCH Greetings of the day!I am using the controller STM32G491MCT for one of my development project. It is given in the datasheet that the VIL of the FT pin is 0.25*VDD & 0.3*VDD. My input signal fall within the range of 0.753V to 3.83V.Considering the worst case 0.25*3.3 which is 0.825V. When estimating noise margin, 0.825-0.753 equals 0.072mV.Could someone clarify whether the 72mV is sufficient to pull the logic low?Anticipating the earliest response.Thanks & RegardsMahalakshmi S

Is there any driver or sample code available M95P32 EEPROM?Can modern MCUs work with this EEPROM in memory-mapped mode?

Hi,If I understand right USART1 is used in STM32H747I-DISCO board for VCOM. I could not find any example for my board. I would like to want for an 8-byte host command using:HAL_UART_Receive_IT(&huart1, hostCommand.buffer, 8); Once a command is received then I process it, I create the answer and wait for the next command. So simple. Noe: on CN13 pin 13 I see the command from my PC on scope, but the HAL_UART_RECEIVE_IT() never receives anything. Can sombody send me a short example?Thanks,Louie

Hello everyone,it was required that my software periodically measures the internal chip temperature for comparison with the externally measured temperature. As the time distances between measurements are several minutes, the ADC is to be completely turned off in between. I mostly copied the code from the LoRaWAN_End_Node example, but the measured temperature is always too low, around 5-6 °C when it should be around 20-21 °C.The ADC code is generally generated by CubeMX.MCU is the STM32WLE5CCU.I've pasted the code here: void MX_ADC_Init(void) { /* USER CODE BEGIN ADC_Init 0 */ /* USER CODE END ADC_Init 0 */ /* USER CODE BEGIN ADC_Init 1 */ /* USER CODE END ADC_Init 1 */ /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */ hadc.Instance = ADC; hadc.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4; hadc.Init.Resolution = ADC_RESOLUTION_12B; hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc.Init.ScanConvMode = ADC_SCA

Hi team, I am new to the STM32 Cube IDE environment and would like to interface and control the VL53L4CX Time-of-Flight sensor using an STM32F030 DEMO Board. I kindly seek your guidance and support in achieving this. Here are the details of the hardware I am working with:MCU Board: STM32F030 DEMO BOARD V1.1TOF Sensor Module: VL53L4CX I only have an STM32F030 DEMO Board to work with, When I try to do the Pin assignments for the MCU (STM32F030F4P6), by including the software pack X-CUBE-TOF1 in simple ranging mode; the BSP APIs for the pins TOF_INT_PIN and VL53L4CX_XSHUT are unknown, Please find the attached image for your kind reference,   Additionally, is vl53l4 only compatible with Nucleo boards? Correct me if I am wrong, but if that is not the case, can you please guide me in establishing communication between STM32F030 and VL53L4CX? I am also available to schedule a call with the ST team to discuss and resolve thi

Hello,We are trying to run Tamper block in VBat (Vsw) mode. When we powered off the device, Vbat pin consumes 3 - 5uA from the battery as specified in device user manual.As we understood from the documentation, the source of Vsw domain (either Vbat or VDD) is switched automatically by internal switch harware, so zero power consumtion is expected from battery when VDD is on. In our custom board, when the board is powerd-up, VDD is on, VBat pin's power consumtion from battery increases up to 50-60uA. Any recomendation about hardware or software would be very helpfull.   -The PDRON pin is pulled-up to VDD on the schematics.  - Battery is CR1216 - 3V Lithium Manganese Dioxide- Battery is connected to the Vbat pin directly, no serial diode,resistor, etc...- Battery cahrging feature is not enabled form device tree.    

Hello!Is any body aware about how to wakeup a STM32 series MCU from sleep over I2C? So far I was aware of wake-up over GPI/Brown out Reset etc, but wake up over I2C?? Is this really possible? Please let me know if anyone has prior experience at this. Have a great day!

Hello everyone,  I am currently working on SPC5 microcontrollers and a bit new with SPC5 studio can anyone guide me how to make an application for running SPI , I am clear with the basic of SPI communication.      

i am using stm32f41ceu6 with RTC and RCC in that we are using LSE  with 100HZ if i set  Alarm  for 1H or more then still working but after 2 or 3 days it wakeup early befor one Minexample i set alarm at 11:30 then it will wakeup after one hour that time after 2 or 3 days wakeup day 11:29there need of any other calibration or any other solution  

As per .ioc  the maximum value length for BLE data transfer can be 512 bytes. but  aci_gatt_update_char_value has char_Value_Length and Char_value pointer set for  uint8_t . so it means we can update only max 255 bytes .aci_gatt_update_char_value( uint16_t Service_Handle, uint16_t Char_Handle,uint8_t Val_Offset, uint8_t Char_Value_Length, const uint8_t* Char_Value )pls suggest 

Hello, as the title goes: is it at all possible to enable both DMA and an analog window watchdog (AWD1) simultaneously on the ADC4?What I'm trying to achieve is the following:ADC4 configured to operate in Stop2 mode and triggered by LPTIM1/CH1 (PWM), clocked by MSIK.AWD1 enabled and also in autonomous mode so it works in Stop2 mode and can wake-up the CPU.DMA enabled at the same time and filling a buffer with the ADC4 acquisitions, same channel as the one which has AWD1 enabled, using LPDMA1, also configured to work autonomously in Stop2.I managed to make the first 2 points work and I'm pretty happy with the results: I get an average current of ~ 7 µA (SMPS enabled) in Stop2, with ADC4 sampling at 500 Hz autonomously (triggered by LPTIM1/CH1) and AWD1 working as expected. So that's pretty good.I then tried to implement a DMA transfer concurrently on the same ADC4 channel using LPDMA1, and this is where things go wild. DMA transfers and AWD1 on ADC4 don't seem to play well together. I h

Hi,I noticed on the GUI Silicon Portfolio that the SPI is used by quite a few micro families for resolutions of up to 480 x 272.I was wondering:1. Do you know if SPI for those micros allows refresh without the tearing effect (i.e. refresh of the whole screen at once)?2. If so, at what colour depth? Do they assume 8 bits per colour?3. Finally, are small animations supported without seeing the tearing effect?Thank you

I'm trying to control a strip of 9 SK6812RGBW LED's with an STM32H757XIH6 microcontroller. I've been through a couple of tutorials on how to use DMA to control the PWM, and I've gone with this tutorial as a base.I've read a few threads on the forum but haven't managed to find any solutions from them.I'm fairly new to this level of microcontroller programming with timers, DMA, etc.These are the timings for SK6812RBGW:The clock is configured as so:The APB1 Timer clock is at 240mhzI'm using TIM3 configured as shown:Now I've tried a few different configs of the DMA stream, currently I'm trying with half word as TIM3 is a 16 bit timer.The LED strip is connected to PC7 via a 1.3kohm pullup resistor to 5V.Here's the code I'm using, mostly following the digikey tutorial code: /* * led.h * * Created on: Jan 27, 2025 * Author: Graeme */ #ifndef APPLICATION_USER_CORE_DASH_APP_LED_LED_H_ #define APPLICATION_USER_CORE_DASH_APP_LED_LED_H_ #include "header.h" #include "tim.h" #

Hi,I have interfaced an STM32H723 to an MRAM that is SRAM compatible, using FMC.. The memory is SRAM compatible, 20bit address and 16bit data. The main control pins for the memory are: CHIP ENABLE (~E), WRITE ENABLE (~W) and OUTPUT ENABLE (~G). FMC clock is 64MHz. System clock is 64MHz.The problem(s):1. in my example, HAL_SRAM_Read_16b works correctly. ~E and ~G are triggered, and data is read correctly. 2. in my example, HAL_SRAM_Write_16b does not trigger either ~E, nor ~W. Writing happens (can see it in Memory View in STM32CubeIde) but it is not actually saved in the MRAM. Therefore, data is lost in the next reset of the uC.3.  Surprisingly, if I open a Memory View in STM32CubeIde and write in memory "by hand", ~E and ~W get triggered (correct functionality!).  All examples give HAL_OK as result. I have two questions regarding this:How come Memory viewer works correctly but calling the HAL functions does not trigger the ~W and ~E in the memory? How does Memory Viewer

Hello everyone, I am writing some code to control an IS31FL3736 LED Matrix Driver which communicates over I2C. I am using a Nucleo H563 as the devboard. I have 4.7k pullup resistors on the SDA and SCL lines. I am using I2C4 with PG6 & PG7 as the SDA & SCL pins respectively. The problem I am running into is that occasionally when I try to call HAL_I2C_Master_Transmit(), both the data and clock lines get pulled low by the microcontroller. The original call to HAL_I2C_Master_Transmit() fails because of a timeout, and all successive calls to HAL_I2C_Master_Transmit() timeout. The only status bits I see set in the peripheral's I2C_ISR are TXE and BUSY. I didn't see any behavior like this listed in the errata, as well as I couldn't find any references to this behavior elsewhere online. The exact configuration of I2C4 is as follows (all code was generated by CubeMX):250MHz peripheral clockI2C_CR1 = 0x00000001 (only PE is set)I2C_CR2 = 0x020220A6 (SADD=0xA6, START=1, NBYTES=2

Hi,Made a prototype board with a STM32WB55RGV. For testing the wake up I reduced to only UART1, incoming SYS WAKEUP PIN 4 (PA2), control LED on PB10, Serial Wire debugging. HSE/LSE present, but not used. BLE is not used, the firmware deleted, etc.If I test by HAL_GPIO_ReadPin I can clearly detect Vcc on the Wake up pin (configured then as input) while pressing the button connected to this pin. Loosening falls down to 0/GND. A multimeter confirms 3.1V while pressing, 0V while loosening the button / in rest.Just a simple code: if (__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET) { __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB); } HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN4); HAL_Delay(1000); HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN4_HIGH); __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU); HAL_PWR_EnterSTANDBYMode(); The device reaches standby mode, I notice the debugger lost contact after some seconds, pretty normal I guess. While pressing the button, confirming high level on PA2/SysWakeUp4 nothing happens. If I

I have a Sensor Tile.Box pro and I want to communicate using I2C to an external peripheral using the PG7 and PG8 pins, which are the I2C3 SCL and SDA pins. However I am unable to get as much as basic GPIO working on those two pins, let alone I2C.I have created a small standalone project for the ST32U585 chip, and using that project I can get I2C and GPIO working without any issues. But when I copy over the working code for initializing the clock and GPIO pins from the standalone project over to the SDDataLogFileX project (which I got from here, and uses the Azure RTOS) the GPIO pins no longer work. Below is the relevant code I'm using. int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Conf

I'm trying uart loopback and checking if I'm receiving the transmitted data on the receive buffer, I'm using nucleo-u575zi board , uart2 I'm using , baudrate is 57600 , the tx pin & rx pin are configured as shown below  GPIO_InitStruct.Pin = GPIO_PIN_2; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; GPIO_InitStruct.Alternate = GPIO_AF7_USART2; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); GPIO_InitStruct.Pin = GPIO_PIN_3; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; GPIO_InitStruct.Alternate = GPIO_AF7_USART2; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);   I'm using receive in interrupt mode and in ISR function I'm trying to receive byte by byte, And also, before going to receive callback it goes error callback function where the error-code is 4 and then it goes rxcallback where byte by byte reception happens,

Hi team, I was trying to establish CAN communication between Matlab Simulink and 2 nodes, through STM32 board. Our logic is working fine when checked individual device. But communication is not taking place when respective nodes are connected to Can1 and Can2 and checked parallelly. Is STM32 Nucleo-F446 series board really capable of handling 2 CAN channels simultaneously ?If no, how can we solve the issue of communicating with both nodes at a time ? Thank you,M Satya Prashanth9515992585

We are developing product with VL53L8CH integrated. Now I have to developed simple firmware that will extract data and control it and for that I need datasheet with registers description. After searching for over an hour, I cant find any datasheet, user manual or application note on this topic.

I'm just looking for some clarification on a few points, having watched one or two of the training videos.  I have bought a NUCLEO-G031K8 dev board, but was wondering if I could just go straight to my target board 1. in the project setup, it asks what board I want to use.  Can I not just use my target as the dev board and if so how do I do that 2. I have made the assumption that the SWDIO and SWCLK are fully functional even if I use my target.  Is this correct? 3. Will the IDE debugger will work with my target board, or will it only work with the NUCLEO 4. Asking the more experienced people here, is it just safer and quicker all round to go with the NUCLEO for s/w dev, and then flash the binary to the target? (the s/w is about 1000 lines of code, so it's a porting + partial rewrite exercise for this first project) Thankyou AndrewR  

I am using NUCLEO-U575ZI-Q eval board. I am trying to blink RGB LEDs. But RED LED which is connected GPIOG pin 2 is not toggling.

I have just purchased a STM32H573I-DK Discovery board, only to find it doesn't appear to recognise the ST-link V3.  Is this a true problem, or just me, and is there a solution?

hi,When I want to generate the code, it says that the STM32CubeMX version is not supported. Even though I downloaded the latest version, it still gives the same problem.  How can I solve this problem?Thank you

Hello everyone,I am using the X-NUCLEO-NFC08A1 NFC Shield that has the ST25R3920B chip. I want to know if it is possible to use this to make OOB Bluetooth with my android smartphone, and if so how can I achieve it. I read some documentation regarding the demos in X-Cube-NFC6 with card emulation, but I don´t if that is suitable for what I am trying to achieve.