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Hi , i am using the stm32mp157DAC processor , where in custom board i added the emmc with SDMMC2, in my hardware there is 3 bootpin, boot0 boot1 boot2 .i did changes in u-boot DTSi did changes in Linux DTS  only in u-boot DTS i added this line in SDMMC2.&sdmmc2 {pinctrl-names = "default", "opendrain", "sleep";pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_a>;pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_a>;pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_a>;non-removable;no-sd;no-sdio;st,neg-edge;bus-width = <8>;vmmc-supply = <&v3v3>;vqmmc-supply = <&vdd>;mmc-ddr-3_3v;status = "okay";};---------------Pinctrl pinmux---------------------------------------------sdmmc2_b4_pins_a: sdmmc2-b4-0 {pins1 {pinmux = <STM32_PINMUX('A', 8, AF9)>, /* SDMMC2_D4 */<STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */<STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */<STM32_PINMUX('B', 4, AF9)&g

Hi,I designed a screen like the one below. The page works very well in the simulator. However, when I load it into the demo kit (STM32N6570 DK), nothing appears on the screen. When I hide one of the texts, thinking it might be related to the buffer, the screen appears on the kit without any problems.Increasing the Canvas buffer did not solve the problem. Where can I see the size of all the text icons etc. loaded on the screen? How can I calculate it?I use a special font in the texts I add. Also, the product will support more than one language. What should I pay attention to regarding size?I'm sharing my settings.BR,Onur   

Hi.I am currently working on a custom board using the stspin32g4. This was derived from the evspin32g4 development board alone with the stm32 motor workbench. Uploading the motor workbench code to the evspin32g4, works and can tune the motor parameters through serial.Moving away from the development evspin32g4 to a custom board has become a tad tricky. I am able to possible flash the custom board's stspin32g4 microcontroller using the ST-link/V2 programmer/ debug tool. However, I couldn't get the serial uart port working. I can confirm the source code is exactly the same (Being uploaded) to the evspin32g4 (So I don't think it's a programming issue).At first, I tried confirming the UART is working correctly. I used the SFR in the stm32 IDE debug tab and modified the registers (When it is in debug mode) (Register USART1 --> RDR (Checking byte sent from the computer serial port application matches the hex value present) and (Register USART1 --> TDR (Writing a hex value and confirmin

Hello, I am trying to build a power supply to power a vehicle tracker.  Can I use two RBO40 in series, so the output of first RBO40 connected to input of second RBO40?  Reason, when a thief steals a vehicle they want to stop the tracker working and sending out GPS coordinates, and quickly.  If they find the tracker's power cable but cannot find tracker because they are quickly working in a public area like a car park they might consider using high voltage like connecting up to 230volts to kill the tracker.  While we can never be sure what actions the attacker will do my thinking is the first RBO40 will be toast and assuming it has created an open circuit, the second RBO40 will continue to ensure nothing bad happens to the battery backed tracker. Putting the above scenario aside, and it isn't my question because there are too many ifs and buts, my question to ST Community is can I safely use two RBO40 in series for about $2-4 to protect $200-400 of components? Thanks

I encountered two problems while learning the Extrapolate library:One of the issues is that I am not very clear about this extrapolation value, and I don't know if there is a problem understanding it. I have always believed that this extrapolated value is a predicted data value made by AI after reading the raw data of my sensor and predicting the trend of sensor changes. However, while studying, I found that this value seemed to need to be set by myself, which made me very confused.Another question that I derived from the first one is that I am not sure what kind of data should be included in Add Singal. In my personal understanding, if I have two columns of data, is the first column the predicted value I set myself? Is the second column my original sequence?Then I tried to search for information in comments and online, but I found that I still couldn't find more information about the Extrapolate library in this NanoEdge AI studio. If you know, can you help me solve these two confusion

Dear all, I am trying to make sense of the pin descriptions / pin-mapping of the STM32H7 Nucleo-144 boards, vs. the MCU STM32H723 which it is equiped with.User manual UM2407 (rev. 4) of the board reads:pin PA3 has function ADC12_INP15pin PC0 has function ADC123_INP10pin PC3 has function ADC12_INP13pin PB1 has function ADC12_INP5pin PC2 has function ADC123_INP12 (i.a.)pin PF10 has function ADC3_INP6 (i.a.)However, in the reference manual RM0468 (rev. 3) of the MCU:ADC12_INP15 appears only in Figure 163 for ADC2 connectivity; how come is it called ADC12?ADC123_INP10 doesn't appear at all in the .pdf. What could the reason be?ADC12_INP13 appears both in Figure 162 for ADC1 and in Figure 153 for ADC2, this is plausibleADC12_INP5 appears in Figure 162 for ADC1 and also in Figure 153 for ADC2, this is plausibleADC123_INP12 doesn't appear at all in the .pdf. What could the reason be?ADC3_INP6 appears both in Figure 231 for ADC3, this is also plausible Many t

hi, im using stm32g474vet6 mcu for power converter. when the supply is turned on initially first time, controller is behaving like hang or stuck somewhere. if i do a pushbutton reset, the mcu starts working fine. after that no issue. whenever im turning off and on the power supply, that time controller is not responding or hanging.what to do for this. since nrst pin not pulled down or pull up. only boot pin is pulled down with 10kohms. i think in debugging mode, controller will alive only, this problem will not come. initially some code issue or init issue or configuration issue if there also, but after the reset mcu starts working finely.so what happens with the initial supply on time. since i have changed power supplies also. after changing the power supply, if i turn off and on(POR) , during that time also hanging is happening.whenever main supply turn off and on this probelm is coming one time, after push button reset only mcu starts working fine.can anyone suggest what to do&

Hello. I am doing stepper motor step control. I am using the "HAL_TIM_PWM_PulseFinishedCallback" function for this operation. Is there a more functional usage method than this? I can't get the max torque of the motor. Can you help me? Motor Driver "TB6600" / Step Motor "Nema17"

Hi, As I am doing a Pspice simulation, for which I am using STM32F030R8, I need the Pspice model of STM32F030R8. To use the GPIO Functionality to connect the MCU to the simulation circuit in LTspice or OrCAD Pspice.

Hi, I am planning to use STM32WL5MOCH6TR which you have suggested. So, to start with can I use this expansion board which contains the same chip for prototype purpose. Can I order this board https://www.st.com/en/evaluation-tools/b-wl5m-subg1.html?ecmp=tt9470_gl_link_feb2019&rt=db&id=DB4904 . or do you suggest any other development board.   Thanks, Praba

I'm using the VL53L1X in the Arduino environment. During the initialization phase, I can read the device address as 0x29, and the device ID is EACC — so there's no issue with that.However, when I try to read the register VL53L1_FIRMWARE__SYSTEM_STATUS, a problem occurs — its value is not 0x01 as expected.I printed out the register value and it shows 2.Here's that section of the code: uint8_t system_status = readReg(VL53L1_FIRMWARE__SYSTEM_STATUS);SerialUSB.print("System Status: ");SerialUSB.println(system_status, HEX);  while ((readReg(VL53L1_FIRMWARE__SYSTEM_STATUS) & 0x01) == 0 ){    if (millis() - timeoutStart > 5000) {  // 延长等待时间至5秒      SerialUSB.println("Error: Boot completion timeout.");      return false;    }  }  SerialUSB.println("Boot completed successfully.");

I am putting together a water level sensor based on the vl53l4ed. The device will be in an outdoors setting with wild swings in environmental conditions. I am having hard time to design a cover / cover glass system for the TOF sensor. I have now concluded that it would be best to purchase a pre-made cover glass assembly for this sensor.  I expect accumulation of dust and other contaminants on the cover glass over time so I would prefer a zero calibration option with individual emitter and receiver covers separated by a divider. Are there commercial cover glass options available for the vl53l4ed model? I found a few options on the ST website but none for the vl53l4ed. Also, are there vendors in the USA who carry these cover glasses? If available, the vendor has to be NDAA-compliant. Thanks

Moved from this post. Hello,   I'm currently working on the STM32H735G-DK dev board, using CubeIDE version 1.18.1 and integrated CubeMX version 6.14.1.202504091515, and this bug is still here. When I launch a debug, the firmware get stuck in the ExitRun0Mode function. After deleting the definition of USE_PWR_LDO_SUPPLY as you explained, everything works.  Regards,

I am trying to get 800KHz frequency with Timer 3 and timer clock is 64MHz and i am using below setting to initalize the timer, but its frequency is 666.66KHz. Pls provide a solution of this problem ASAP......   static void MX_TIM3_Init(void) { /* USER CODE BEGIN TIM3_Init 0 */ /* USER CODE END TIM3_Init 0 */ TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_OC_InitTypeDef sConfigOC = {0}; /* USER CODE BEGIN TIM3_Init 1 */ /* USER CODE END TIM3_Init 1 */ htim3.Instance = TIM3; htim3.Init.Prescaler = 0; htim3.Init.CounterMode = TIM_COUNTERMODE_UP; htim3.Init.Period = 79; htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_Base_Init(&htim3) != HAL_OK) { Error_Handler(); } sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; if (HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig) != HAL_OK) { Error_Handler(); }

I am writing to inquire about the thermal resistance of the L6201PS. The datasheet provides information on the thermal resistance for an aluminum PCB, but I need to know the thermal resistance when using a glass epoxy (FR4) PCB.Could you please provide the thermal resistance values for the L6201PS on an FR4 PCB?Thank you for your assistance.

hi,my question is why i can't analyze my model about onnx and cubemx don't back type about my error.my model about onnx size is nearly 3mb,so the compression which i used is high.but the cubemx still can't analyze.emmm i hope their have a handsome guys can help me.i will very appreciate to you!

Hi, I have a problem with CMSIS RTOS v1 using STM32F103RET6. I have about 6 - 7 tasks. The first task is the StartDefaultTask, after finishing initializing, when running to osSemaphoreRelease, it gets to configAssert(pxQueue) and loop forever. The semaphore is reference to another task, which the task combines at least two semaphores to work. Can anyone meet this before? Also the task which combines two semaphores work like this, where the callback_timeout is released from the StartDefaultTaskif(osSemaphoreWait(save_data, osWaitForever) == osOK){ if(osSemaphoreWait(callback_timeout,osWaitForever)==osOK){ 

Hi, I'm using the code generated by CubeMX ver 16.14.0 following the following link to develop a USBPD sink. https://wiki.stmicroelectronics.cn/stm32mcu/wiki/STM32StepByStep:Getting_started_with_USB-Power_Delivery_Dual_RoleI added an APDO to the PDO list but it is not working. I traced the issue to be coming from the USBPD_DPM_RequestMessageRequest function when it calculates the allowable power. It uses the DPM_SNKRequestedPower.MaxOperatingCurrentInmAunits found in the DPM_USER_Settings structure. The issue is that this value is not initialized. If I use the cubeMonitor-UCPD app, I can see that APDO is defined in the SINK capabilities tab, so the data is there somewhere. Additionally, if I press "SEND TO TARGET", the DPM_SNKRequestedPower.MaxOperatingCurrentInmAunits found in the DPM_USER_Settings is now correct. Is this an issue related to missing initialization in the code generated by the cubeMX which is leaving the DPM_USER_Settings to

Hello, I am currently using a STM32l433 with the following configuration: CAN_FilterTypeDef CAN_FilterInitStructure = {0}; CAN_FilterInitStructure.FilterBank = filterNum; CAN_FilterInitStructure.FilterScale = CAN_FILTERSCALE_16BIT; // 11-bits StdId left-aligned on the 32-bits word register CAN_FilterInitStructure.FilterIdHigh = id << 5; CAN_FilterInitStructure.FilterIdLow = 0; CAN_FilterInitStructure.FilterMaskIdHigh = mask << 5; CAN_FilterInitStructure.FilterMaskIdLow = 0; CAN_FilterInitStructure.FilterFIFOAssignment = CAN_FILTER_FIFO0; CAN_FilterInitStructure.FilterMode = CAN_FILTERMODE_IDMASK;   It globally works. So if my ID is 0x701 and my mask 0xFFFF, the callback will be called for every message ID 0x701. However, when I change the mask, for exaple to a value like 0x700, in order to only get the '7' from the standard ID, my callback is not called for every message with ID 0x7__.I also notice the that the 16bit filter lenght require the RTR, IDE and E

I have an STM32G0B1CBT6 board and am trying to get CANFD / FDCAN working. I have STM32CubeIDE code that works, but I am unable to get it to work with Arduino. Here is my code; any help is appreciated. CubeIDE code /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2025 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 ------------------------------------------------------------------*/ #include "main.h" /* Private includes --------------------------------------

Hello! I'm creating my own board based on the STM32H745I-DISCO board. I want to use the LQFP208 package of the STM32H745, which has fewer pins than the original package of the DISCO board. I need to connect Ethernet, a display, and QSPI, among other peripherals. I've encountered a conflict where the LCD_DE pin connects to PF10, which is also used by the QSPI_CLK pin. I saw that QSPI_CLK is also available on PB2. However, PB2 is occupied by MII_TX_ERR/nINT.My question arises when I notice that this pin is not defined in the Ethernet configuration in MXCube (I'm new to the CubeIDE environment and ST's frameworks, and I'm worried I might be missing something). In fact, I disconnected this pin between the Ethernet driver and the STM32H745, and communication with a test server still works. So my question is: Is it really a good idea to leave the MIIMII_TX_ERR/nINT pin unconnected? Could it be that communication works for now, but if some kind of error occurs, it could cause proble

Hello, I have Version STM32CubeIDE : 1.18.0, and I get a program that was communicated to me, but I have this message below :  And I downloaded and installed STM32CubeMX 6.14.1 version, but it seems that it is not taken into account in the environment of STM32CubeIDE version 1.18.0.  Here is the path I installed the STM32CubeMX 6.14.1 version How to link STM32Cube IDE with STM32CubeMX so I can open the program. Thank you for your helps.

Hello, I'm learning embedded development (junior level) and picked up a free STM32u575zit6q Nucleo Dev Board.My goal is to build an embedded system that captures a VIN string and saves it to a .csv file. Ideally done through embedded and low level. Later I'd like to incorporate cloud systems to easily see the csv as a spreadsheet on an app or webpage and phase out the LCD/IPS display.My main question is, how important is an FIFO for this board and would it hurt if I don't buy a camera that has one installed? What cams would be ideal for this project? Is there a system for scanning VINs and converting them to strings easily? I was thinking of incorporating Yolo/OpenCV but not sure if this microprocessor would be powerful enough.Any advice on my design choices? Display:2.4 inch SPI onilne shop factory ESP32 LCD TFT Electronic Module colorful RGB 65k ILI9341 Display 320*240  Camera Module:b_u585i_iot02_: when looking through the projects, I noticed the STMU5 alrea

In SPC5 Studio, I have an example of CAN communication using the SPC58xGxx board. When loopback mode is enabled, the transmission works correctly. However, when I disable loopback mode, the transmission fails. Could you provide guidance on how to successfully transmit CAN messages without using loopback mode? Additionally, I would like to know how to monitor the CAN signals using Peak-CAN.

hello, I ask for the following clarification: I am using a two-channel encoder, A and B, and I want to estimate the rotation speed of the encoder shaft as precisely as possible. I started setting the TIM2 in encoder mode.My encoder generates 1200 pulses per revolution.I called the function: HAL_TIM_Encoder_Start_IT(&htim2, TIM_CHANNEL_ALL); and : void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim) { counter = __HAL_TIM_GET_COUNTER(htim); }which increases the counter variable every time a channel A (and B) get a variation (rising/falling edge settable from CUBE IDE).At one full revolution of the encoder, with my settings of frequency = 160 MHz, Ps =0 and ARR = 4800, the counter variable starts at zero and goes to the value 4800 at each full revolution, then goes back to zero, and so on (all visible via serial on my laptop by using Putty software). My question is: how can I estimate the rotation speed? I have read a lot of information about this but I am still confused. An