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I'm using a STM32H563 Nucleo and the latest version of CubeMX along with the Keil (V6.19 C Compiler - uVision IDE V5.38)I have discovered a weird issue where even though CubeMX seems to be generating the initialization code for the baud rate for UART9 correctly, it does not actually get loaded into the UART9 Baud Rate Register (BRR) using the Lower Level (LL) libraries:UART_InitStruct.BaudRate = 19200;UART_InitStruct.DataWidth = LL_USART_DATAWIDTH_9B;UART_InitStruct.StopBits = LL_USART_STOPBITS_1;UART_InitStruct.Parity = LL_USART_PARITY_ODD;UART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;UART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;UART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;LL_USART_Init(UART9, &UART_InitStruct);LL_USART_ConfigAsyncMode(UART9);LL_USART_Enable(UART9);When I compile and execute the code, the USART_BRR value stays unchanged at 0 hex.  I have tried the same thing on UART7 and it works just fine.  I am trying to trace

Hello! I am trying to use MDMA with stm32h743zi, but when i set up it on cubeMX, i don't know which channel number to choose.I looked up information about MDMA but nothing useful found... Any help here to know which number to choose? As always, thank you so much!

Hello,Can you provide FIT rate data and pin FMEA for the M24C04-A125 EEPROM devices? M24C04-DRMN3TP/KM24C04-DRDW3TP/KM24C04-DRMF3TG/KThank you and best regards,Jessica Riley

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 

Hello,I am trying to achieve the maximum timer clock on the STM32H723ZG for input capturing. In the data sheet is written under Table 4: "The maximum timer clock is up to 550 MHz depending on theTIMPRE bit in the RCC_CFGR register and D2PRE1/2 bits in RCC_D2CFGR register."I tried to achieve this in the Clock Configuration but it seems like the only solution I found is invalid (see screenshot below). Can I still do that? Or is there another way to do that?I tried to compile it and it worked without a problem. Sadly I cannot test it on hardware due to delivery.Thanks in advance!  

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?

Hi Community,I´m trying to import this driver for my custom board,fp-sns-stbox1/Drivers/BSP/Components/st25dvxxkc/st25dvxxkc.c at main · STMicroelectronics/fp-sns-stbox1 (github.com)could someone explain this more? why should NULL be written in ICREF_REG ? Thanks in advance!Danny

Hi,I am trying to do multi-channel single conversion in polling mode in a scan sequence on an Nucleo-STM32G070 board, there is a multi-channel ADC example with this board, but it needs a trigger for every channel. What I need is:start the conversion for all channels successively, one by one, and after one second,collect the result in an array and start the conversion again.So the questions are:1. how to configure so that the multi-channels could be converted one by one with just one trigger?2. how to retrieve the conversion data for all channels?I checked the HAL driver stm32g0xx_hal_adc.c, it provides only one function to get the result: uint32_t HAL_ADC_GetValue(const ADC_HandleTypeDef *hadc)It returns the DR register value. I did not find a similar function that returns a pointer which points to an array of the conversion values for the multi-channels.The following is my MX_ADC1_Init:static void MX_ADC1_Init(void){ADC_ChannelConfTypeDef sConfig = {0};/** Configur

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. 

I am using the LSP22HB on an I2C bus. I can read the "who am i" register and get the expected value. I can also read various configuration registers and see the default values. So, I believe I am communicating with the device.I don't set any registers since it seems the default values have the device in power down mode which is needed for ONE_SHOT operation. To get the pressure and temperature values I do the following steps:1. Write to CTRL_REG2 the value 0x11. This sets the IF_AUTO_INC and the ONE_SHOT bits. I am under the impression the ONE_SHOT bit starts the operation to get the pressure and temperature.2. I loop on reading the CTRL_REG2 and check the ONE_SHOT bit waiting for it to go to zero. This should indicate that the readings are now available.3. I then read the pressure and temperature registers. I get values but they are not correct. I have tried both multi-register access to get all the values in one I2C interaction and looping through and just getting one pressure and te

Hi,I am currently trying to receive uart message when the MCU is in stop mode on a Nucleo-L073Rz board.To do this I first wake up the mcu on uart start bit, and when the mcu receive the uart idle event.I can then treat the received message in the main loop before entering again the main loop.It works great when the received message is only one char long.However if the received message is longer, the HAL_UARTEx_WakeupCallback is called a second time after all treatment has already be done.Which is a problem, because it wake up the MCU whereas It doesn't trigger HAL_UARTEx_RxEventCallback in order to stop the mcu again.I am quite new in embedded software so maybe I have to make some routine or clear flag, but I have no idea.How does I assure the HAL_UARTEx_WakeupCallback not to be called twice ? #define RX_BUFFER_SIZE 20 uint8_t charBuffer = 0; uint8_t rxBuffer[RX_BUFFER_SIZE] = {0}; volatile uint8_t uartMessageCompleted = 0; uint8_t enableStopMode = 0; void enterStopMode() { HAL_

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 Width? 3. If I using only classical CAN, may I use CAN transceiver which is not supporting FDCAN?(I already make PCB and I use CAN transceiver which didn't supporting FDCAN...) Thank you. 

No idea what this does.  Can't find any documentation.I installed it and am looking at the panel.  Maybe add a help button on the panel so people have a trail to the information.Thanks!

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 am working working with a PMSM FOC project in MC Workbench 6.2.1 and I am wondering if there is a way to change the mcu's analog vref input voltage. From the numbers I'm seeing on the current measurement page, it seems like MC Workbench is expecting the mcu to have a 3.3v reference on the vref input pin of the mcu. However, I don't see a way to change that in MC Workbench or a field for it in any of the board files for the control or power boards. The custom board I am using has a 3.0v input to the vref+ pin on the mcu. Is it possible to input this information anywhere?

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?

I have the following code that I call from a freertos task scheduled with a period of 100 ms.It reads the voltage applied to a pin and return the voltage value as a float.   float pinin_pv(void) { /* Return the pin voltage in the interval [0, PIN_VOLTAGE] */ extern ADC_HandleTypeDef hadc1; const uint32_t ADC_RESOLUTION_BITS = 10; const uint32_t pippo = hadc1.Init.Resolution; // Only for explanation const float PIN_VOLTAGE = 5000.0F; // [mV] const float ANALOG_IN_RESOLUTION = PIN_VOLTAGE / (float)(1 << ADC_RESOLUTION_BITS); // [mV]HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY); size_t analog_read = HAL_ADC_GetValue(&hadc1); float pin_voltage; pin_voltage = ANALOG_IN_RESOLUTION * (float)analog_read; return pin_voltage; } As you see, I have hard-coded const uint32_t ADC_RESOLUTION_BITS = 10; but I would like to pull this information from hadc1.Init.Resolution; (as example, I defined a variable named pippo in the code abov

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,With Kind Regards,Aymen

Hi,I recently got the X-NUCLEO-IKS01A3 MEMS inertial and environmental expansion board. I followed the Getting Started with X-CUBE-MEMS1 video to set it up using an STM32F446RE NUCLEO-64 board.Everything went perfectly.  No errors or warnings during debug. Connected it to COM9:STMicroelectronics STLink Virtual Port (COM9), clicked OK, and the screen fills with gibberish.Any ideas what could be going on?Thanks in advance.-B 

Hi, we are using ST21NFCD in one of our wearable products. I am referring to the document: "AN_21NFCD_Antenna_Matching_RF_Config Rev 7" to know about the NFC antenna design and tuning. It is mentioned here about the application tool used for impedance network matching. I tried to find the tool on the ST Micro website and unable to get it. Can you help me to access this tool?

Hi all,I have a setup where many devices need to to respond to a message on 868MHz from a sender. At the moment I am using random delay to space the responses but I will like to use the RadioIsChannelFree() function.Do anyone use this function? Is it a recommended way for avoiding transmission collision and if so are there good example on how to properly utilize this function?Ola 

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 transmission is aborted and started again. (HAL_SPI_Abort(), HAL_SPI_Transmit_DMA())&nbsp

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? 

Hi Guys, I'm new about VScode. I try to use arm_math.h in my program. but after i set include path in json file, the vscode can't find the function. and give me the message <<Function definition for 'arm_mat_init_f32' not found.C/C++>> my board is nucleo -H723ZGand i also try to connect the library in the st-project.cmake like belowtarget_link_libraries(${TARGET_NAME} PRIVATE"arm_cortexM7l_math")target_link_directories(${TARGET_NAME} PRIVATE"${PROJECT_SOURCE_DIR}/Middlewares/ST/ARM/DSP/Lib/") and set add_definitions(-DARM_MATH_CM7)add_definitions(-D__FPU_PRESENT)but it still doesn't work. anyone can give me some idea about it?

Hello community,Currently, I have Lorawan gateway: p-nucleo-LRWAN1 and Lorawan node: B-L072Z LRWAN1.I'm looking forward to suggestions from you, which company gateway and node will be better than this current gateway and node. with current devices, I'm facing data rate as well as long-distance communication. In the current node when I fill a 242-byte buffer and try to transmit data it only transmits data at SF7 and SF8 and not at SF9,10,11,12. At this SF I'm getting empty packets. And at distance of 50 meters only from gateway SF turns from 7 to 12.Thank you.