STM32 MCUs Products

Hi,I have the following board : NUCLEO-F429ZIThe datasheet says that UART3 is the STLINK UART that can be used over USB.I configured this UART but when I try to receive anything from the terminal that is connected to the UART com port, I don't see the interrupt being triggered.The objective is to receive some data over UART3, process it, and send the processed data over UART6.UART3 init in main.c/** * @brief USART3 Initialization Function * @PAram None * @retval None */ static void MX_USART3_UART_Init(void) { /* USER CODE BEGIN USART3_Init 0 */ /* USER CODE END USART3_Init 0 */ /* USER CODE BEGIN USART3_Init 1 */ /* USER CODE END USART3_Init 1 */ huart3.Instance = USART3; huart3.Init.BaudRate = 115200; huart3.Init.WordLength = UART_WORDLENGTH_8B; huart3.Init.StopBits = UART_STOPBITS_1; huart3.Init.Parity = UA

In an STM32F427, according to the Backup domain reset subchapter of RCC chapter of RM0090rev.19, backup domain can be reset by setting RCC_BDCR.BDRST. There is no other condition to this mentioned in that subchapter nor elsewhere in related material (e.g. in description of RCC_BDCR.BDRST bit) in the RM.However, experimentally I found, that backup domain reset does not happen after setting RCC_BDCR.BDRST, if PWR_CR.DBP is not set.JW

Hi, i'm dealing with fdcan and have problems with high speeds, 1Mbps works good, but 8Mbps (which works in loopback mode) doesn't, I tried with delay compensation, but didn't work, or maybe i used it wrong way? static void MX_FDCAN1_Init(void){ /* USER CODE BEGIN FDCAN1_Init 0 */ /* USER CODE END FDCAN1_Init 0 */ /* USER CODE BEGIN FDCAN1_Init 1 */ /* USER CODE END FDCAN1_Init 1 */hfdcan1.Instance = FDCAN1;hfdcan1.Init.ClockDivider = FDCAN_CLOCK_DIV2;hfdcan1.Init.

Hi,I will be using STM32H747XI with a MIPI or RGB-24bit display and design screens using touchGFX. My question is does it support OTA  via QSPI flash storage as the Arduino framework has support for the OTA does the Cube IDE support it or can I use Arduino framework for the MIPI or RGB-24bit displays?

  Hi I followed this yt-guide for CAN-bus https://www.youtube.com/watch?v=JfWlIY0zAIc&t=918s I'm however using a different type of nucleo board (L433RC-P in my case and F103C8tx in the video) and a different type of CAN-transceiver (MCP2561T-E/SN vs MCP2551 in the video). My board uses a different type of can periphery (can1 vs can). My solution to this difference was to just change all of the code where he writes can to can1. Yet checking with an oscilloscope, I don't seem to be sending any CAN signal. relevant code:

hi,i couldn't chase which location address allotted for OTP memory ?.As per data sheet of MCU - Stm32f401ccu6– 512 bytes of OTP memory allotted . Can anyone please detail me OTP location Start Address - End Address 

Hey guysIm using stm32h743 and nand flash connected with fmc.I searched to see how I can create my own external loader for nand(i couldnt find any for nand flash).I think i just need to adapt Loader_Src.c file to nand flash hal function and a linker to build the .stldr?Am I on a right way?

Apologies if I've missed something simple (and I probably have!), but I'm trying to convert ADC readings on the STM32F072 into actual millivolts and I cannot seem to put all the pieces together.Where I am currently stuck is the formula at the top of page 260 in the reference manual RM0091 Rev 10:VDDA = VDDA_Charac x VREFINT_CAL / VREFINT_DATAAccording to the note just under that formula, "VDDA_Charac is the value of VDDA voltage characterized at VREFINT during the manufacturing process. It is specified in the device datasheet."I've been all over the STM32F072xB (DS9826 Rev 6) datasheet and I cannot find any reference to such a thing as VDDA_Charac or the voltage at which the VREFINT_CAL is characterized at. Am I supposed to assume it is 3.3V? Is there some constant in the HAL that I should be referencing? I found a "VDD_VALUE" in stm32f0xx_hal_conf.h, but I don't think that's it.Thank you for any guidance you can provide. 

Hello, I am having an issue turning off trustzone on my device. While checking that the example project to blink the LEDs was properly working on my device (it wasn't, it kept getting secure faults.) I had gone into the STM32 Programmer to change some options to see if it would fix anything in regard to why I kept getting secure fault errors on my device. I accidentally locked WP1A and WP1B. Then I attempted to fix this by turning on and off the trusted level. Now I am stuck with WP1A and WP1B locked, trustzone enabled, and my RDP stuck at 55. I've tried this article with no avail: community st / s / article / how-to-disable-trustzone-on-stm32u5-seriesAnd I've even tried accessing it with BOOT0 set to VDD. Is my board bricked? Is there anything I can do to fix this? Any help is greatly appreciated. Additionally, is there any guide to make sure that GPIO_IOToggle_TrustZone is properly working and setup other than the Readme?

Hello. I have three question about using classical CAN frame with FDCAN controller.I am using STM32H743VIT6 MCU on my PCB. 1. If system clock(label in ioc file: SYSCLK) is too low, can it make impossible to use CANbus? 2. If I using only classical CAN frame, does Nominal bit timing parameter(Nominal Sync Jump Width, Nominal Prescaler, Nominal Time Seg1/2) only consider and Data bit timing parameter ignored? or both bit timing parameter use for CAN 2.0 communication?    2.1 I am using KVASER Bit Timing Calculator to set timing parameter. what is appropriate sample point value for STM32H743?    2.2 There is Tseg1, Tseg2, SJW at KVASER Bit Timing Calculator for CAN FD. Does Tseg1 = Time Seg1, Tseg2 = Time Seg2 and SJW = Sync Jump W

Hello,maybe someone has an idea or can share an similar experience. Since I'm currently in the evaluation phase for selecting an MCU for our new industrial embedded project. I want to inspect and analyze this problem, to be sure the used MCU is working fine and i can use it (STM32H735IGK6).Issue:Pushbuttons on different EXTI-Interrupt  randomly fires twice or more times. Some GPIOs are effected, but not all, i have tested.Setup:Own PCB-Layout, 6 Pushbuttons, every one is debounced with 10kOhm and 10nF. Signal looks fine on scope, no bouncing can be seen with scope, absolutely clean signal.Test 1:apply a 200mHz sine-wave directly to the button pin. Expected behavior is: one interrupt on rising one interrupt on falling signal (due to the 200mV hysteresis on every input pin, as mentioned in datasheet). Behavior in RealLife: as soon as the voltage level on the pin reaches the s

While replicating the method of integrating DSP libraries into my STM32 project as discussed in the following thread: tutorial , I encountered the error #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" during the project compilation. I'd like to share a solution that proved effective in resolving this issue. Upon inspecting the "arm_math.h" file, I observed that, after the preprocessor directives, there is an inclusion of the header file containing information related to the device's peripheral access layer, in my case, "stm32f407xx.h". The solution involved simply moving the `#include "stm32f407xx.h"` directive to the beginning of the "arm_math.h" file. Following this modification and performing a clean build of the

I want to use tim 2 at the frequency of APB1 and not to the sysclock how i can do that, can somoene explain me or look at my code at the bottom to help me i want to use the 0.09375 frequency for my projet. thanks 

I'm wondering what happens with the EDATA sectors when bank swapping is enabled.In the GetBank_EDATA() helper function in the FLASH_EDATA_EraseProgram example, the FLASH_OPTSR_SWAP_BANK flag is not checked, so it would seem the EDATA areas do not swap when the banks are swapped.Is that indeed the case?

Hello Community :), I'm using the I2C of the STM32F302:I2C configuration:7 bit data standard mode "100 KHz"mode pollingWhen initiating communication between the STM32 and the sensor, the "HAL_I2C_Master_Transmit" function returns "HAL_ERROR." Upon investigation, I discovered that this error is associated with an error code. Does anyone know the significance of the error code?I catch the error in line 679 of the HAL function: Thanks,

Hello, I have a problem with my NUCLEO H503RB. I'm trying to make it work with Pmod I2S2 module (ADC+DAC). For now I've connected only ADC via I2S1. This is my HW configuration: I2S config: GPDMA config:

I' m using ADC2(with 4 channel ) and ADC3 (with 2 CHANNEL) i need them to measur current from 6 sensor ACS712 the process was fine with DMA  and works pretty good, but the problem  is with the while loop.  the while loop never runs. i found some tutorial said that  When the ADC channel frequency is high, the DMA interrupts gets triggered very often and the control always remains in the callback function, and the while loop remains inactive forever.i'm using STM32F746ZG , ADCCLOCK (36 MHZ)  the sampling time for all channel is set to 480 ? please any advice  /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "adc.h" #include "dma.h" #include "tim.h" #include "usart.h" #include "gpio.h" /* Private includes --------------------------------------------------

The STM32CubeMX tool (I'm using 6.10.0) continuously hangs after GENERATE CODE on "Generating user source code..."The STMCubeMX.log file (within the .stm32cubemx directory) shows a java.lang.NullPointerException: 2024-02-13 13:36:22,290 [ERROR] CodeEngine:200 - catch error: There are no more files 2024-02-13 13:36:22,290 [ERROR] ProjectBuilder:2205 - java.lang.NullPointerException: Cannot invoke "com.st.microxplorer.codegenerator.TemplateFile.getPath()" because "this.template" is null at com.st.microxplorer.codegenerator.CodeEngine.genCode(CodeEngine.java:243) ~[STM32CubeMX.exe:?] at com.st.microxplorer.codegenerator.CodeGenerator.generateOutputCode(CodeGenerator.java:5673) ~[STM32CubeMX.exe:?] at com.st.microxplorer.codegenerator.CodeGenerator.generateMSPCode(CodeGenerator.java:4685) ~[STM32CubeMX.exe:?] at com.st.microxplorer.codegenerator.CodeGenerator.generateCodeFiles(CodeGenerator.java:2171) ~[S

Posted on October 09, 2016 at 23:26What is the best way to restart a DMA servicing a UART using the HAL drivers?On the first iteration the DMA works correctly; transfers new data and fires interrupt.On second iteration, the DMA transfers only one new data reading but doesn't fire an interrupt.On the third iteration and beyond, the DMA doen't interrupt or transfer data. It is in HAL_DMA_STATE_BUSY.I've tried using HAL_DMA_Abort, HAL_UART_DMAStop, and recalling the DMA initialisation routine but it still doesn't restart correctly.I can't find any documentation on how to restart the DMA with HAL drivers.Any help would be greatly appreciated. Thanks.

Hello,I am working on a sensor device acting as a SPI slave with transmit only and without chip select signal. I am using a STM32G070 microcontroller.I configured 4 bytes transmissions using DMA. The problem I have is that the external master can perform incomplete reads of any number of bits under the maximum of 32, so the next transmissions will be shifted.I am using a timer to restart the SPI transmission so that the transmitted buffer is restarted after some time since the beginning of the first clock, but the SPI data is still shifted after incomplete reads. What is the way to restart the transmission from the beggining of the buffer? My current flow is:1. Start 4 bytes transmission by DMA SPI2. When the first clock is detected by EXTI, start the timer.3. An incomplete read is performed by the external serial master (21 bits, for example).4. The timer timeout is triggered.5. The SPI tr

We work with STM32F070RBT6 . There is an internal POR/PDR controller in microcontroller but it seems to be active when VDD below 1.8V according to the product datasheet but the operating voltage seems between 2.4V to 3.6 V.In Run Mode, If the input voltage VDD fall below 2.4V but not below VDR detect level (1.8.. 2V), in other words between (2.4 V and 2V) what will be happen? 

Hello I hope you can help.We have developed a production programming solution for the range of STM32G474 devices which uses our own hardware controller interface.Is it possible to replicate the "run after programming" --go command externally?(eg, without using the STM32CubeProgrammer CLI.exe)As currently the boards do not boot after configuration.Kind regardsAtz. 

Hello,  I'm experiencing a problem with PB6 pin on STM32G474 MCU when any type of reset occurs. The pin goes low for the whole duration of the reset pin being low, and stays low to around when the FDCAN is initalized. This is a significant issue, as it causes error frames to be sent whenever such device is restarted while connected to a working CAN bus.  I thought it might be linked to the UCPD Dead battery feature (UCPD1_CC1) - indeed a fresh project without the HAL_PWREx_DisableUCPDDeadBattery(); does not pull the PB6 pin low, however adding this call causes the low state to occur while under reset. The same goes when a FDCAN init is used. It looks as if whatever peripheral touched the PB6 the problem shows up.  Did anyone experienced anything like this?   

Hey guys. I'm trying to use the SPI1 interface on the aforementioned nuncleo board, but no luck whatsoever.I want to transmit 2 3Byte commands to a dac device. The first one is 48,0,0 and the second one is 55,255,255. My code is:   uint8_t msg_Tec[3]={0x30,0x00,0x00}; HAL_GPIO_WritePin(CC_GPIO_Port, CC_Pin, GPIO_PIN_RESET); HAL_SPI_Transmit(&hspi1, spiCommand, 3, HAL_MAX_DELAY); while(HAL_SPI_GetState(&hspi1) != HAL_SPI_STATE_READY); HAL_GPIO_WritePin(CC_GPIO_Port, CC_Pin, GPIO_PIN_SET);   I manually asssigned a pin as CC, set to MSB First and spi mode to 01. Here are some pictures from an oscilloscope that i used to check the  SPI signal outputs. I've also noticed a couple of concerning things here, like a good ammount of background noise ( even though i used a 70 Ohm resistance in series with the signal outputs to reduce it)

Hi,I have question, I wanted to check whether a condition has reached below threshold level. How many check do I need to do whether it has reached the level below. Does it need to be three check or do a 20 check and average out to see if it below that level. Is there better way of doing ? alogortihm perhaps.