STM32 MCUs Products

Hi,I started a design with STM32U5 series MCU. In the STM32CubeX's HSE settings, there is a new option "DIGBYPASS Clock Source'. What's the differences with the old 'bypass clock source'?Thanks.

I need help with configuring HYPERRAM for my STM32 on a custom PCB. The HYPERRAM pins are about 32mm away from the MCU pins.The HYPERRAM works, but I get strange flickering on the display even with static data in RAM which I think comes memory errors of the external RAM. My memory passes some basic memory tests, but I think things go wrong when the LTDC peripheral reads from the memory at high speeds. I could be wrong about this, but I need to tune the configuration of the memory anyway. I want to exclude this possibility.There are so many settings and contradictory advice that I'm overwhelmed.Turning on D-cache for the HYPERRAM doesn't help.If I calibrate the delay block the memory tests fail. If I don't calibrate it, it doesn't fail. If I disable it it also fails.I've implemented calibration according to the following forum post:

Hı everyoneI was trying to send the data to termite terminal. The data variables are coming from DS1307 (RTC Module) and BH1750 (Lux) sensor. However, The data coming from lux sensor is zero in termite. Rtc module variable is okey. Lux sensor variable is declared as lux. When ı debuged it, ı can see lux value properly but the USART transmit 0. By the way, both of sensor is connected to I2C1 bus. I have Stm32f4 discovery kit. How can ı solve that ? /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "DS1307.h" #include "bh1750.h" #include <stdio.h> #include <string.h> /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ char tx_buff[50]; uint16_t lux=0; /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/

This is a question regarding virtual COM port communication using CDC.A STM32F412 Discovery with CDC installed is connected to a Windows PC, and 70 bytes of data is sent from the PC via serial communication.However, when receiving with CDC_Receive_FS, it is divided into 64 bytes of data and 6 bytes of data.If I change the Define definition, can I receive 70 bytes of data without being split?

Hello,I would like to determine the ADC sampling frequency.I am initializing the ADC with following: hadc1.Instance = ADC1;hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;hadc1.Init.Resolution = ADC_RESOLUTION_12B;hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;hadc1.Init.ContinuousConvMode = ENABLE;hadc1.Init.DiscontinuousConvMode = DISABLE;hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;hadc1.

hi st-community,as i'm newbie embd engr.,i have limited knowledge of using to select mcu or mpu in stelectronics or any.so please suggest me for custom hardware making using stm32..as i have basic understanding of st-world..from past 5 month.I have tested the STM32F769I-DISCO for 12-lead ECG data acquisition and printing using a thermal printer, with a GUI  TouchGFX as the basis. Now, I need to finalize the choice of chip for our multi-parameter patient monitor application.1. is there any way for developing custom HW like using project files for discovery board to import in altium and able to customize to our need ..thats all i needed to do..2.  I've selected the STM32MP15 (dual core -800mhz main) as my processor for better handling, especially for external RAM memory like LPDDR3. Considering future development, would starting with custom hardware based on the high-level STM32MP15 be the best option?3.where, my previous post, i didn't g

Hi There,I am using STM32C031C6 evaluation board. I am using ADC_IN1 for the ADC measurement. I want to use internal clock source for my board. I want a stable ADC output. 1. Which internal clock source should I choose for the stable ADC output?a) HSI48 (48 MHz)orb) LSI (32 kHz) STM32C031C6 has sampling rate of 2.5MSps. I am going to use less samples. I want a stable ADC output.  Kindly give your suggestions and answers. Thanks in advance!

I am currently working stm32  issue with internal flash memory is that it requires erasing an entire page before rewrite  data .if i modify specific address data that page it demands erase of entire page.It affect other data of that page . so give solution for that what are other possibility without affect other data of that page ?         

Hi All, I am facing problem with RTC in STM32.i have written function in my code where i am updating display function for time every 1 min. But whenever i am trying to  see the updated time in free running mode i am unable to see that. But it works fine in debugging mode or at power on or when i program microcontroller. Please suggest what can be done to resolve this issue? Thanking you in advance.

I'd like to use an STM32C011F4P6 as a transceiver between USARTs 1 and 2.As a first approach, I've set both USARTs to 9600bd, and I want anything that's incoming on one of them to be directly sent to the other. In both directions at the same time.In the USART1 and USART2 configuration I enabled NVIC interrupts for both of them.I then created a HAL_UART_RxCpltCallback() in section 4 in my main.c: void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { /* Prevent unused argument(s) compilation warning */ //UNUSED(huart); if (huart->Instance == USART1) { HAL_UART_Transmit_IT(&huart2, huart1.pRxBuffPtr, 1); HAL_UART_Receive_IT(&huart1, huart1.pRxBuffPtr, 1); } else if (huart->Instance == USART2) { HAL_UART_Transmit_IT(&huart1, huart2.pRxBuffPtr, 1); HAL_UART_Receive_IT(&huart2, huart2.pRxBuf

Hi,I'm developing an audio device which will process incoming audio signals into a distorted output.Since there is a series of processes that will be executed, I thought it would be useful to use "double buffering" to process the collected audio, while simultaneously fetching new data in the background using DMA.Below is the essence of what I'm doing. My understanding is that this is a pretty basic way to go about it: Do processing when buffer is half-full, and then again when buffer is full. #define AUDIO_BUFFER_SIZE 128 #define AUDIO_BUFFER_SIZE_HALF (uint32_t)(AUDIO_BUFFER_SIZE * 0.5f) int32_t audio_rx[AUDIO_BUFFER_SIZE]; int32_t audio_tx[AUDIO_BUFFER_SIZE]; static volatile int32_t *audio_rx_p; static volatile int32_t *audio_tx_p = &audio_tx[0]; void Audio_Transmit(){ for(uint8_t n = 0; n < (AUDIO_BUFFER_SIZE_HALF - 1); n += 2){ //left channel audio_tx_p[n] = FLOAT_TO_INT32 * A

Hello, I use STM32F429IGT6 MCU I am trying to communicate with TI's DLPC through HW connection. To use this, use LTDC. SW uses the Standard Peripheral Library and Complier uses IAR. The HW GPIO settings were set using CubeIDE, and were set as follows according to the IDE's GPIO settings. I am trying to send a 24bit image by setting it to RGB888.  1. When sending as RGB888, the settings are as follows. Is this the correct format?   static void LCD_Config(void) { LTDC_InitTypeDef LTDC_InitStruct; LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct; /* Enable Pixel Clock --------------------------------------------------------*/ /* Configure PLLSAI prescalers for LCD */ /* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 8 /

HIIf the CAN message ID set to FIFO0 is received, HAL_CAN_RxFifo0MsgPendingCallback will be called correctly.but,HAL_CAN_RxFifo1MsgPendingCallback is not called even if the CAN message ID set in FIFO1 is received.The following is strange.step1Send CAN message set in FIFO1 from CANoestep2HAL_CAN_RxFifo1MsgPendingCallback is not called.step3Send CAN message set in FIFO0 from CANoestep4HAL_CAN_RxFifo0MsgPendingCallback is called.After this, HAL_CAN_RxFifo1MsgPendingCallback is called! !The data received in FIFO1 is from FIFO1 and is correct. Below is the code.Any help is welcome. #define FILTER_ID(id)      ((id << 5) | (REMOTE_FRAME << 4)) HAL_CAN_DeactivateNotification( &hcan, CAN_IT_RX_FIFO0_MSG_PENDING );HAL_CAN_DeactivateNotification( &hcan, CAN_IT_RX_FIFO1_MSG_PENDING

I have a question regarding interrupt handling for CDC_Receive_FS.After receiving CDC_Receive_FS we do any process we created, but we do not want to do CDC_Receive_FS during the process.Is there an API to disable or enable CDC_Receive_FS interrupts?

STM32F103Im using HAL_UART_Transmit_IT but doesnt work, if change to HAL_UART_Transmit all works fime but add delays to move in motors. Where are my error? i see all videos on youtb and cant find the problem.I have enabled the IT on MX the priority are on 0, (try other combinations but same result)i call the enviar4Variables_IT on  the while of movement motors, for update the position without delay the motors.Out side the while i call with out IT with no problems.I check the debug up to return HAL_OK (not are busy, the addres of pointer its correct inside of HAL_UART_Transmit_IT )I think must works but i dont know what happenThanks in advancevoid HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart) { uartIT_free = 1; } void enviar4Variables_IT(uint16_t variable, uint16_t valor1, uint16_t valor2, uint16_t valor3, uint16_t valor4) { if(uartIT_free) { uartIT_free = 0

Hi !I use Lwip and FreeRtos Cmsis_v2, I set this config in cubemx, but in ping test ops!what is my mistake?!Thanks.1-sys config   2-ethernet  config3-freertos

  As mentioned above, I encountered a similar issue before when using the L0 series, and at that time, I chose to abandon hardware I2C in favor of software emulation. Now, with the STM32G431, when I use LL_I2C_HandleTransfer to configure continuous reading of multiple data along with LL_I2C_MODE_AUTOEND, after the first read operation completes the specified number of bytes, it automatically triggers a STOP condition, which is as expected. However, upon the second invocation of this code segment, I noticed that after reading the last byte, the SCL remains pulled low. This behavior seems equivalent to the I2C peripheral being stuck. The STM32, as the master, should not keep the SCL pulled low without performing any operation at any point.

I am trying to write own startup file in c++ till now everything is working but I am having issue when declaring and defining something in the global scope it's most probably related to the static constructor that cpp need but I don't know how to fix this can anyone help me with this? Thanks in advance 

int main(void){HAL_Init(); SystemClock_Config(); MX_GPIO_Init();MX_SPI1_Init();MX_USART3_UART_Init();/* USER CODE BEGIN 2 */----> HAL_SPI_Receive_IT(&hspi1, (uint8_t*) &rx_data, sizeof(rx_data));/* USER CODE END 2 */while (1){HAL_SPI_Transmit(&hspi1, (uint8_t*) &test,sizeof(test), HAL_MAX_DELAY);delay(10000);}}I use SPI1 module in FullDuplexMaster Mode.I use interrupt to receive data from the SPI Slave.The Thing is that if I add

Posted on March 02, 2017 at 20:43Hi,I'm using the Waveshare Open746I-C Package B based on the STM32F746 development board with StemWin with 2 Meg SDRAM, on FreeRTOS, GT811 touch screen interface and 7 inches 1024x600 LCD.After many hours of debugging everything works fine but I’m still facing a strange issue. Doing a simple two buttons GUI, the board goes directly into goes directly into my HardFault_Handler manager if the Framewin_CreateIndirect first coordinates are 0, 0. staticconstGUI_WIDGET_CREATE_INFO_aDialogCreate[] = { { FRAMEWIN_CreateIndirect, 'Framewin', ID_FRAMEWIN_0, 0, 0, 1024, 600, 0, 0x0, 0 }, { BUTTON_CreateIndirect, 'Test 1', ID_BUTTON_0, 818, 390, 150, 67, 0, 0x0, 0 }, { BUTTON_CreateIndirect, 'Test 2', ID_BUTTON_1, 818, 470, 150, 67, 0, 0x0, 0 }, // USER START (Optionally insert additional wi

Can you please suggest an about 25x35 mm LCD that will work with STM32U575 microcontroller and has a low power consumption. Thanks Michael 

I want to set up error handling for my CAN messages, and I wanted to start with errors from sending messages to IDs not on the CAN bus net. However, every message I send is acknowledged. There is only stm32 chip set up on the net and the rest are currently TMC Pandrive motors. I am sending messages to individual motors with different IDs without issue - they're received and the motors react accordingly. So I am not sure how or why these messages to other CAN IDs are acknowledged. Below is the code I use in my CAN interface file.  #include <CANInterface.h> CAN_RxHeaderTypeDef rxHeader; CAN_TxHeaderTypeDef txHeader; std::vector<uint8_t> canRX(7, 0); CAN_FilterTypeDef canfil; uint32_t canMailbox; void HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef *hcan1) { std::vector<char> sendBuf(60, 0); uint8_t bufLen = sprintf(sendBuf.data(), "response triggered\r\n");

"Hi,I am trying to read an ADC value from the feedback of a PWM signal generated via TIM3 PWM.TIM1 generates a PWM signal with 4 channels, including complementary channels. The CCR value updates from the Sine table using DMA.The ADC is being read when the TIM1 update event occurs. The ADC data is saved to the buffer via DMA.However, when I try to read the ADC, the data is only saved alternately.Why is this happening?"  

hi, that's the first time a i wrote to this comunity because i'm stuck with this *** problem since one week right now, i made a custom board with stm32h750vbt6 , 4 stereo audio dac and 2 4ch audio adc, eth phy , clock gen ic and etc.. now my idea was to send and receive audio over udp unconnected socket. since i've allredy made the pc app, audio driver etc... and this i'm sure that function because i've already tested in local netwwork with multiple pc and different device. i made also the fw for this board, tested all the component and work everithing perfectly fine (the dac work the adc work ETHERENT WORK FINE !) i'm sure about. i've tryed using freertos, bsd socket, netconn, raw api, no OS and raw api and so on... the resul it's always the same: i'm able to send the audio over udp and the receiving app work fine BUT i'm not able to receive the audio and play it correctly! , the udp packet arrive but when i fill the buffer, (no data corruption i checked) the output is distorted so

Hello everyone,I bought a tool that uses a STM32F103C8T6 with a program on it to transmit some CAN data. I would like to read the program that is currently on the tool and edit it.Is it feasible ? Or is the memory protected ?Thanks in advance for your help ! :grinning_face: