STM32 MCUs Embedded software

Friends, which algorithm do you use to control the LEDs in this structure? I need your ideas. I have prepared a table of the LEDs' turn on order. 

Hello,I'm working on an adapter USB to Ethernet and it is working only as a DEVICE. Now I would like to do the same but I want my STM to work as HOST.Is ST providing the same code stm32-mw-usb-device but for host?Thanks,G.

Dear ST,   After signing the NDA agreement, I received STM32CubeExpansion_STL_G0_V2.0.0.   I tried testing the projects for NUCLEO-G071RB in STM32CubeIDE 1.14.1, but to no avail. Edit: Removed screenshots as package is under NDA. After importing the projects: Edit: Removed screenshots as package is under NDA. When I compile, I get the following error: Edit: Removed screenshots as package is under NDA. Any suggestions?

HelloI have two boards. Both of them are based on STM32 MCUs. One is a SPI master and the second is a SPI slave.Settings for master (STM32H723): mHandle.Init.Mode = SPI_MODE_MASTER; mHandle.Init.Direction = SPI_DIRECTION_2LINES; mHandle.Init.DataSize = SPI_DATASIZE_8BIT; mHandle.Init.CLKPolarity = mSclIdle == SclIdle::kLow ? SPI_POLARITY_LOW : SPI_POLARITY_HIGH; mHandle.Init.CLKPhase = mSclEdge == SclEdge::k1 ? SPI_PHASE_1EDGE : SPI_PHASE_2EDGE; mHandle.Init.BaudRatePrescaler = mPrescaler; mHandle.Init.FirstBit = SPI_FIRSTBIT_MSB; mHandle.Init.TIMode = SPI_TIMODE_DISABLE; mHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; mHandle.Init.CRCPolynomial = 0x00; mHandle.Init.NSS = SPI_NSS_SOFT; mHandle.Init.NSSPMode = SPI_NSS_PULSE_DISABLE; mHandle.Init.NSSPolarity = SPI_NSS_POLARITY_LOW; mHandle.Init.FifoThreshold = SPI_FIFO_THRESHOLD_01DATA; mHandle.Init.TxCRCInitializationPattern = SPI_CRC_INITIALIZATION_ALL_ZERO_PATTERN; mHandle.Init.RxCRCInitializationPattern = SPI

Hi,I have a STM32U535 microcontroller, I would like to send data to the display via SPI using GPDMA with LLI. The Frame buffer is about 150kB, so due to the fact that in a single transfer I can send max. 64kB of data, I want to divide it into three LLI nodes create a queue and send via SPI.For the test, I created two LLI nodes in CubeMX:DMA_NodeTypeDef YourNodeName; DMA_QListTypeDef YourQueueName; DMA_NodeTypeDef YourNodeName2; /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ uint8_t ScrAdrPart1[] = {0xAD, 0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD, 0xAD,0xAD,0xAD,0xAD,0xAD,0xAD}; uint16_t DataSizePart1 = 20; uint8_t ScrAdrPart2[] = {0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x

Hello ST Community,I'm working on a project using STM32U595 with INMP441 MEMS microphone and NS4168 audio DAC. The system is configured to capture audio data from the microphone using SAI1_Block_A in DMA mode and then output it to the speaker using SAI1_Block_B.Issue:I've implemented the SAI RX half-complete and complete callbacks, but they are never triggered. I've added printf statements to display the received data, but nothing is being printed. The DAC seems to be initialized correctly (NS4168_INIT() returns without error), but no audio data is being processed. Code：/* USER CODE BEGIN Header */ /** ****************************************************************************** * File Name : SAI.c * Description : This file provides code for the configuration * of the SAI instances. ****************************************************************************** * @attention * * Copyright (c) 2025 STMicroelectronics. * All rights reserved. * * This so

Hi, all.I'm using STM32H747I-DISCO.I tried STemWinHelloWorld example, and "Hello world!" string was displayed on LCD properly.I added EXTI IRQ. And I confirmed when EXTI IRQ occur, it went to EXTI15_10_IRQHandler.Then I added proccess that display "How are you?" string in EXTI15_10_IRQHandler, as shown below.void EXTI15_10_IRQHandler(void) { /* USER CODE BEGIN EXTI15_10_IRQn 0 */ /* USER CODE END EXTI15_10_IRQn 0 */ HAL_GPIO_EXTI_IRQHandler(GpioInt_Pin); /* USER CODE BEGIN EXTI15_10_IRQn 1 */ GUI_DispStringAt("How are you?", (LCD_GetXSize()-100)/2, (LCD_GetYSize()-20)/4); /* USER CODE END EXTI15_10_IRQn 1 */ }But when EXTI IRQ occur, "How are you?" string was not displayed on LCD, although it go to EXTI15_10_IRQHandler.And I confirmed below action.I added proccess that display "Fine!" string in MainTask() followed by GUI_Delay(1000), as shown below.void MainTask(void) { GUI_Clear(); GUI_SetFont(&GUI_Font32_1); GUI_DispSt

Did you come to a conclusion on this approach? I am having the exact same dilemma. There is an approach to do it through TF-M, but then how is the support from ST on that part? https://github.com/zephyrproject-rtos/trusted-firmware-m/tree/release/2.2.x Again, I want to emphasize on what is available from ST and not compare it to nRF. This way I can decide which approach to take for the secure boot solution on STM32U5. @Sarra.S  Edit: Moved from mcuboot bootloader update.

I am attempting to transmit four bytes via I2C to a device with address 0x27, using the code below.data_t[0] = 0x01; data_t[1] = 0x02; data_t[2] = 0x04; data_t[3] = 0x08; HAL_I2C_Master_Transmit (&hi2c4, 0x27U,(uint8_t *) data_t, 4, 100);My understanding is that the structure of an I2C message is7 bit addr | R/W bit = 0 (for write) | DataThe address is 0x27 = 0b0100111The RW bit is 0 for WSo the header byte is then 0b01001110 = 0x4ESo I would expect one of two possible things to happen when I use this command. EitherEach byte is separate and preceded by the address byte. Then 8 bytes will be clocked out to the I2C bus[0x4E],[0x01],[0x4E],[0x02],[0x4E],[0x04],[0x4E],[0x08]Or there is one address byte, followed by 4 bytes of data. Then 5 bytes will be clocked out[0x4E],[0x01],[0x02],[0x04],[0x08]What I actually see on the logic analyser below. So there is 5 bytes, which is something I would have expected, but it seems to be just repeating the address each time, and never actually wri

Hi,I'm currently working on STM32H733 MCU powered by Azure RTOS (Threadx + NetxDuo), My application is divided into two parts: custom bootloader[For Firmware Updates] and application[Business logic Implementation]. I was able to update the application from the bootloader. After a successful download of the application, the bootloader Soft Resets the device. The device boots into the bootloader again and checks if there is a valid application, then jumps to the application.Everything was working as expected until I updated ld file(to move .tcp_sec and .nx_data sections to start of D1_RAM) from .tcp_sec (NOLOAD) : { . = ABSOLUTE(0x24036C00); *(.RxDescripSection) . = ABSOLUTE(0x24036C60); *(.TxDescripSection) } >RAM_D1 AT> FLASH .nx_data 0x24000100 (NOLOAD): { . = ABSOLUTE(0x24036D00); *(.NetXPoolSection) } >RAM_D1 AT >FLASHto ... .tcp_sec (NOLOAD) : { . = ABSOLUTE(0x24000000); *(.RxDescripSection) . = ABSOLUTE(0x24000060); *(.TxDescripSection) } >RAM_D1 A

I get errors in many of the headers files in the Drivers, for: unknown type name 'HAL_StatusTypeDef'. All of these files include the file with definitions, in my case #include "stm32u5xx_hal_def.h",  so I do not understand why it is a problem to find. I have all necessary include paths. When I searched on the internet I see that others had the same issue but did not get any good solution. Do you have any tips why it happens and how can I solve it?Thanks in advance!

Hi Master:Platform: STM32H743HAL library firmware: STM32Cube FW_H7 V1.12.1Question:As shown in the following code, it takes a long time to update 'sTime', perhaps a few minutes.  RTC_TimeTypeDef sTime = { 0 }; RTC_DateTypeDef sDate = { 0 }; ASSERT(HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN) == HAL_OK); ASSERT(HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN) == HAL_OK); But when I switch the order of execution, it is updated every secondRTC_TimeTypeDef sTime = { 0 }; RTC_DateTypeDef sDate = { 0 }; ASSERT2(HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN) == HAL_OK); ASSERT2(HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN) == HAL_OK);What is the reason for this? Thank you so much

Hello all, I am trying to compile STM32F7xx_HAL_Driver using gcc toolchain in mingw. I am trying to build the example project GPIO_EXTI for the STM32F746ZG-Nucleo.   Here's a snip of my console output:     Would appreciate any help!

Hi everybody,i just noticed a bug in the HRTIM HAL library for the STM32G4 controller. The defines for the HRTIM deadtime prescaler in stm32g4xx_hal_hrtim.h are swapped between MUL and DIV.For example: MUL8 should be 110 binary but it is 000. DIV8 should be 000 but it is 110. Is there any way to transmit this officially to STM?

I have a basic FSBL Load and Run application on the NUCLEO-N657 that loads an application from flash into the internal SRAM of the MCU.   Since the N6 has no internal flash, I would like to allocate a portion of the external flash memory to a Fat/FileX volume that the loaded application can use. What's the preferred method of creating a custom LevelX nor driver in Application for using the OSPI Flash?  Should I use the EXTMem manager to abstract the read/writes, or should I integrate the XSPI2 driver directly into the custom LevelX nor controller?   Current Attempt, using EXTMem_manager within custom nor controller: In my FSBL, I successfully init XSPI2, XSPIM, and the EXTMEM_Manager to load and run the application from flash. (Tutorial)    However, once the application begins initialization, the app cannot re-init XSPI2 and times out with a busy error.  If I bypass the init of XSPI2, then the EXTMEM manager times out trying to access the XSPI2 periph

1.i flash the app in flash address 0x08010000 2.and flash the bootloader in flash address 0x08000003. use bootloader jump 0x08010000, but i can not found the app run(because led cannot Flicker)please see my project bootloader and app,how i can let it run normal ????

I am using NucleoH563ZI board with threadx and netxduo.I have the following code, it makes http requests.The first completes ok, but the other 2 has a problem where the dns returns with 0xA3, basically can't resolve the host url. With wireshark i noticed that the url somehow contains one additional character: "firestore.googleapis.comD" and with the second case: "firestore.googleapis.comH"calloc (or malloc, does not matter which i am using) returns a valid and good pointer then strcpy copies the url string.In debug I can see that the url is copied succesfully. But after the next calloc suddenly an excess character appears at the end of the string, thus the dns fails to resolve.It does not matter what I put between the strcpy and the calloc, it always fails the same way.if I compile the program with only a single request, then it sometimes works. Any idea what is going on? //get public IP char* public_ip_str = calloc(30, 1); if(public_ip_str == NULL) { Error_Handler();}

I have read some posts about this topic already but unclear if this works or not. I used the STMCubeMX to create a project using FreeRTOS and USB Device CDC (USB-Serial) together and some LED GPIO's.I can only get one or the other to work, but never at the same time. I have tried adjusting the memory settings heap/stack as suggested in some of the forums but that didn't help. Just wanted to check if anyone has this working or if I should switch to a different scheduler/OS? I am using a STM32F303RE; any help would be appreciated. Thank you

Hello there, I'm using USB CDC application. I'm in a situation of receiving more than 250 bytes of data from the Windows(QT). Now my doubt is when the data is more than 64 bytes the USB FS it'll not consider right.But i revised some websites from there i came to know that "you can send larger than 64 bytes the usb will take care for multiplying the packets". But in my case it was not working. Later from our STM community i came to know that by changing this " CDC_DATA_FS_MAX_PACKET_SIZE" to larger number we can achieve receiving large number of packets.initially CDC_DATA_FS_MAX_PACKET_SIZE is 64U. Now I've changed to 256U. Now it's working fine, but i don't know about later. Does it cause any problems?

Hello,first, this is my first try on Keil uVision & MDK toolchain.My goal is to compile and run the same source using ST CubeIDE and Keil uVision.For this a generate code and 2 project files, one for CubeIDE and one for Keil, for a demo project with FreeRTOS and LWIP.I can sucessfully compile and run the project on CubeIDE. But if I compile the same code on Keil MDK, I get the following errors:Error: L6218E: Undefined symbol errno (referred from if_api.o).FreeRTOS.h(71): error:  #5: cannot open source input file "reent.h": No such file or directory I googled around and I found out that I have to tweak some settings in CubeMx which dependent on choosen toolchain. But my intention is to use the same source and CubeMx configuration files for both toolchains. So I choose patching two configuration files. The 1st patch I added to the user code part of FreeRTOSConfig.h:/* The following flag must be enabled only when using newlib */ #define configUSE_NEWLIB_REENTRANT 1 : /*

I'm working on getting a minimum viable example functional using a U575 IC and a micro SD Card.  The hardware I'm using is the Nucleo-U575 board along with an SD Card breakout from Adafruit. I've wired it up as an SDIO 4-bit setup.  With just the autogenerated code when I enable the SDMMC peripheral, I'm finding that it runs into an error.  HAL_SDIO_Init() -> SDIO_InitCard() -> SDMMC_CmdSendOperationcondition() -> SDMMC_GetCmdResp4() returns a errorstate of 4 (SDMMC_ERROR_CMD_RSP_TIMEOUT).  What is timing out here?  Is there something I need to do to set the SD Card into SDIO mode? Also, the SDIO_CLK looks to be running non-stop at ~800kHz.  Is this normal? I would expect it to run only when something it happening on the bus (just like SPI), but this is my first foray into SDIO.This is using STM32CubeIDE 1.19.0 with the latest firmware pack (I installed it and it downloaded it today)

Hi All,I have constant measurement offset in Vbat internal channel from ADC3, ~30mV above the supplied value.Vref calculated by macro:__HAL_ADC_CALC_VREFANALOG_VOLTAGE((uint32_t)(measure->adcDataAverage[measureVref]) , ADC_RESOLUTION_16B);i see offset of 4 mV above the configured 2.5V (reading is 2.504 - 2.505)Vbat also calculated by macro:__HAL_ADC_CALC_DATA_TO_VOLTAGE((uint32_t)(systemObj->dump[MIN_NET_ADDR_NUMBER - 1].measurement[measureObjVref][dbgObjectNameVoltage - dbgObjectNameCurrent]) , measure->adcDataAverage[measureVbat] , ADC_RESOLUTION_16B);but offset is higher: 30mV above the input voltage.i check with NUCLEO-H753ZI by run of  STM32Cube\Repository\STM32Cube_FW_H7_V1.11.2\Projects\NUCLEO-H743ZI\Examples\ADC\ADC_InternalChannelConversionand also observed offset around 20mV.According to  DS: https://www.st.com/resource/en/datasheet/stm32h743vi.pdf page 109, Vref has max.15 mv "spread", but the Vbat deviation is not specified.Please advise.

Hi :I want to switch my project from HAL to LL because of flash size.But SPI doesn't work after switching.When I using HAL, the code below in main function works fine, uart will print OK.When I switch to LL, it will print NG.After switching to LL, I already add LL_SPI_Enable(SPI1); to MX_SPI1_Init function.Cubemx project and all code is as attachment. uint8_t data = 0x80; CS_GPIO_Port->BSRR = (uint32_t)CS_Pin << 16u; #ifdef USE_HAL_DRIVER HAL_SPI_Transmit(&hspi1, &data, 1, 100); HAL_SPI_Receive(&hspi1, &data, 1, 100); #else while (!LL_SPI_IsActiveFlag_TXE(SPI1)); LL_SPI_TransmitData8(SPI1, data); while (!LL_SPI_IsActiveFlag_TXE(SPI1)); LL_SPI_TransmitData8(SPI1, 0xff); while (!LL_SPI_IsActiveFlag_RXNE(SPI1)); data = LL_SPI_ReceiveData8(SPI1); #endif CS_GPIO_Port->BSRR = CS_Pin; if(data == 0x05) { while (!LL_USART_IsActiveFlag_TXE(USART2)); LL_USART_TransmitData8(USART2, 'O'); while (!LL_USART_IsActiveFlag_TXE(USART2)); LL_USART

Hello, I'm trying to use the HAL function to calculate a file MD5 on my STM32H750 MCU. I successully managed to calculate the MD5 of little files using HAL_HASH_MD5_Start. Now I want to calculate the MD5 of a large file, so I'm not able to store all the file content in RAM. How to use the HAL functions to calculate the MD5 in chunk? Thank you in advance,Matteo

Hi, I have a problem with pinging PCs with my adapter USB-Ethernet with an STM32F207. I'm currently working with CDC-ECM for Ethernet-Over-USB. First case: I have 2 VMs with Linux on them. The USB is connected to the first VM (VM1) and the Ethernet is connected to the second (VM2). I can ping VM1 with VM2 but I can't ping VM2 with VM1.Second case: I have one VM with Linux and a Windows machine. The USB is connected to the VM and the ethernet is connected to the Windows machine. When I ping the VM with Windows or Windows with the VM I have only loss packets... Does someone have any idea why ?Thanks,