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Hello there. I've been developing a project with STM32WLE5CCU with LoraWAN included. I've used ST's utilities like LMhandler, UTILITIES_timer, and SEQUENCER to handle tasks and different functions.I've encountered a strange behavior though. When I change the optimization level to O3 there are times where code asserts to an error and the error handler is called to reset the device.I've done some search regarding the state of the registers in the MCU and I've found out that BFSR.IMPRECISERR register was set.    .... STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/MMARVALID:0x0 STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/IBUSERR:0x0 STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/PRECISERR:0x0 STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/IMPRECISERR:0x1 STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/UNSTKERR:0x0 STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/STKERR:0x0 STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/LSPERR:0x0 STM32WL5x_CM4/SCB/CFSR_UFSR_BFSR_MMFSR/BFARVALID:0x0 ...    I've export

In the guide to using the VL53L5CX multizone Time-of-Flight ranging sensor it's described that for periodic temperature compensation the function vl53l5cx_set_VHV_repeat_count has to be called.I can't find the function in any header or c file.

Hi,[EDIT 3] there is no need to configure GPIOC pin 0,1 and 2 as secure to be used by ADC1 since all GPIO are secure by default when TZEN = 1. cf. RM0456 § 3.5.6 "activating TrustZone security". This is why you do not find an of this in generated code by MX. [EDIT 2] : I fixed few typo, and also fixed my explanation : I made few confusion when reporting my notes ==> both DMA channel 10 source and destination are secure, with source == ADC1 channel 10 and destination (via linked list) is a buffer in SRAM3.A bit of context: I have to start ADC conversion on 3 channels, with ADC1, and it must be done in Secure world.To do things step by step I first started with no TrustZone activated, and from STM32CubeMX I successfully generated code to use ADC1 on 3 channels, with DMA in linked list mode, without Trust Zone activated.Note: the code generated by MX does not include anything to "link" the ADC1 with the DMA linked list, so I had to take the code from the example available "ADC DMA

Iam using STM32WBA55 and i tried to configure STM32_WPAN BLE application but the generated code has a file not found error.ask me for any further details regarding this problem because i don't know what to put in my post that might help in this problem.

Hi,Currently, my development boards are X-NUCLEO-NFC08A1 with STM32G0B1-Nucleo.May I know how the X-CUBE-NFC6 library demonstrates Bluetooth pairing on the X-NUCLEO-NFC08A1 expansion board?And next I would like to modify the Bluetooth device address, local name of Bluetooth record when ST25R3916B in Card Emulation mode.Could ST give me some advice? Thank you.Best regards,Sam Cheng

Hello together, I'm using a STM32F769-DISCO Board with STM Cube IDE.LWIP is activated.No DHCP, static IP.Most of the LWIP is default only disabled the DHCP and TCP parts.First, sending UDP packages is working fine. My Issue is:that the receiving udp callback function delivers a udp data length of 22 (p->len = 22). But I only receive 2 Bytes of data in the Rx-buffer (p->payload). The 2 Bytes are filled correctly with data. The rest of the data array is 0.   Does someone have any advise regarding LWIP UDP receiving?I tried allocating (pbuf_alloc) the buffer and using pbuf_take() , but I did not see any difference. I think there could be some issues with the buffer address, but I'm honestly at a loss here... Here the udp init and the receive callback function in "lwip.c":   uint8_t testbuffer[100] = { 0 }; err_t udpServer_init(void) { err_t err = ERR_OK; ip4_addr_t destIPAddr; ip4_addr_t myIPAddr; upcb = udp_new(); IP4_AD

Greetings. Please help me identify this component. Thank you Another variation? 

Instead of completing development of STM32CUBE Programmer - every one now need to follow some manual steps with unknown versions of firmware with many undefined startup addresses and even when all steps are completed with success - development board still not programmed properly - examples are not working!!!

I am asking a question of application rather than capabilities of MCU itself.I hope to build an handheld board that is powered by batteries and using this board update other board's settings, especially date/time configurations.This requires a parser and i hope i can find some JSON for MCU that will work fine. However, i hope to use this method with pogopins instead of dupont or similar to even more simplify this process.It is obvious that as addition to TX RX couple, GND pin should must be included for different power sources. I can start communication with a button on handheld board to simplify process. But during pin connection, it is obvious that some noise will be generated that ruins data transfer.I am not very familiar with UART itself, i just used it on modules. Is there any adequate method for this kind of updating progress? How can i ensure a stable communication randomly just whenever i touch pins? Or what should i use additionally to these RX TX GND pins?Software is another

Hi all,I am currently designing a board based around the STM32F303xC MCU, and had a few questions regarding information on the datasheet.- For boot modes, the data sheet states the following:"At startup, Boot0 pin and Boot1 option bit are used to select one of three boot options:• Boot from user Flash• Boot from system memory• Boot from embedded SRAMThe boot loader is located in the system memory. It is used to reprogram the Flash memoryby using USART1 (PA9/PA10), USART2 (PD5/PD6) or USB (PA11/PA12) through DFU(device firmware upgrade)."How would the BOOT1 option bit be set? I do not see a pin or specific firmware instructions for where BOOT1's option bit is located. I plan to boot from Flash memory by sending data through USB.- In the datasheet, Table 21 states there can be a maximum V_DD-V_DDA voltage difference of 0.4 V. All my analog inputs can output a maximum of 2.0 V, and ideally I would like to power the MCU with 3.3 V. Would there be issues with these voltages, as it exceeds t

Hi,when you have multiple projects loaded in the IDE (pane on the left hand side) and also multiple files opened (each from different projects) how do you know which one belongs to which project? AND... how can you tell which project is the active one being compiled? In pretty much every other IDE environment when you open a file it automatically highlights it name in the tree on the left side. But not on the CubeIDE... For example if you have two main.c open you have no idea which one belongs to which project currently loaded in the IDE... Thank you :)

The power supply part of the board I made myself did not use "stpmic", but used a discrete power supply. I encountered an issue when porting OpenSTLinux (5.1.0). After modifying the power supply in the "u boot" device tree and using "STM32CubeProgrammer" to download, it kept downloading repeatedly, as shown in the following figure:I have modified these positions: under "i2c4", the "pmic: stpmic@33 All nodes have been deleted, and the following content has been added to the root node:vddcore: regulator-vddcore {        compatible = "regulator-fixed";regulator-name = "vddcore";regulator-min-microvolt = <1200000>;regulator-max-microvolt = <1350000>;regulator-always-on;        regulator-boot-on;};     v3v3: regulator-3p3v {        compatible = "regulator-fixed";        regulator-name = "v3v3";        regulator-min-microvolt = <3300000>;   

Hello,I want to write my own ID in the STM32WL55 memory. For this I use STM32Cubeprogram and the ST-LINK V3.My question is: is there a small flash area where I can write this identifier and which does not interfere with the code and data so as not to be deleted.I looked at the memory organization in the documentation but it's a bit confusing.Thanks.

Hello ! I've been working on with LIS3MDL a magnetometer from STM, but there was one problem because reading X,Y,Z it was showing good values but sometimes instead of value it just spitted 0, for example X = 0.14, Y = 0.30, Z = 0.14 and sometimes it just randomly zeroed random axis like X = 0.14, Y = 0.0, Z = 0.14The culprit was here :   uint8_t data[6]; HAL_I2C_Mem_Read(&hi2c1, LIS3MDLTR_Address, LIS3MDLTR_X_Y_Z_Axis, 1, data, 6, HAL_MAX_DELAY); The problem  firstly I used int8_t data[6] instead of uint8_t data[6], I don't know why HAL had problem with it ?? Binnary it should be the same data but somehow it didn't work. Someone know maybe why ?  *x = ((int16_t)data[1] << 8 | (int16_t)data[0]); *y = ((int16_t)data[3] << 8 | (int16_t)data[2]); *z = ((int16_t)data[5] << 8 | (int16_t)data[4]); Here I still changed it into int16_t so the binary data is not interpreted differently decimally, but in HAL_I2C it should make any differ

In the code I have written here, I am trying to send data from UART4 within the main function and simultaneously receive data through interrupts if data arrives. However, the data transmission part works for a very short time and then stops, and the data received from the interrupt is corrupted. I am providing the code from the main.c and stm32f4xx_it.c files below. Can you help me?main.c: #include "main.h" #include "kibar_nextion.h" #include <string.h> uint8_t main_buffer[5]; uint8_t main_buffer1[8]; int main(void) { __HAL_UART_ENABLE_IT(&huart4, UART_IT_RXNE); uint8_t last_data[] = {255, 255, 255}; while (1) { for(int i = 0; i < 360; i++) { HAL_UART_Transmit(&huart4, (uint8_t*)"main_screen.z0.val=", 19, 100); HAL_UART_Transmit(&huart4, (uint8_t*)kibar_return_array_char_from_32_t(i), kibar_size_integer_data_32_t(i), 100); HAL_UART_Transmit(&huart4, last_data, 3, 100); } } } stm32f4xx_it.c: #include "main.h" #include "stm32f4xx_it.h"

HEY.I'm testing the ST25DV64KC on IOS (Iphone 14) to save/change the password but I'm not able to get the error: Tag connection lost Example of data sent with the command in Swift: tag.sendRequest(requestFlags: Int(data[0]),commandCode: Int(data[1]), data: data.advanced(by: 2)) { (res: Result<(NFCISO15693ResponseFlag, Data?), date values ​​= 00B30201B8F355AA00000000 transform into decimal How to resolve the error?

We are using two STM32 platforms, one is running STM32H735RGV6 and the other is running STM32F103C8T6, they are connected by a single wire and connecting as UART Half Duplex.Note that we did make it work in a UART in full duplex mode for STM32F103C8T6 previously without any problem using another platform. The STM32H735RGV6 is transmitting messages as expected, we do not know it by seeing bytes using a logic analyzer, and we do not know if it can receive yet, and it is configured as this: ======= huart7.Instance = UART7; huart7.Init.BaudRate = 19200; huart7.Init.WordLength = UART_WORDLENGTH_8B; huart7.Init.StopBits = UART_STOPBITS_1; huart7.Init.Parity = UART_PARITY_NONE; huart7.Init.Mode = UART_MODE_TX_RX; huart7.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart7.Init.OverSampling = UART_OVERSAMPLING_16; huart7.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart7.Init.ClockPrescaler = UART_PRESCALER_DIV1; huart7.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO

Hi.I use a trigger source to trigger  SPI tx/rx linked-list DMA (not circular). But have no clues how to jude if the tx/rx DMA is done. I traced the IRQ handler, it calls, the code below:    /** * @brief DMA SPI transmit receive process complete callback. * hdma: pointer to a DMA_HandleTypeDef structure that contains * the configuration information for the specified DMA module. * @retval None */ static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma) { SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; if (hspi->State != HAL_SPI_STATE_ABORT) { if ((hspi->hdmarx->Mode == DMA_LINKEDLIST_CIRCULAR) && (hspi->hdmatx->Mode == DMA_LINKEDLIST_CIRCULAR)) { #if (USE_HAL_SPI_REGISTER_CALLBACKS == 1UL) hspi->TxRxCpltCallback(hspi); #else HAL_SPI_TxRxCpltCallback(hspi); #endif /* USE_HAL_SPI_REGISTER_CALLBACKS */ } else { /* Enable EOT interrupt */ __HAL_SPI_ENABLE_IT(hspi, SPI_IT_EOT);

When compiling code for the U575 from the IOC file a warning pops up that SMPS must be enabled.  However, we cannot find this setting under the PWR tab nor via the A-Z listing of properties.  What must be done to clear this warning?

Hi,I have a background in electrical engineering but am a complete beginner with embedded engineering. I've bought two nucleo f767zi boards with the goal to send information between them using Ethernet with the built in rj45 port. My goal right now is to utilize the built in user button to light a LED on the other board. Once i get a working initial code ill be able to build on it from there. However, im struggling a lot to even get the initial code working. I'm using the stm32cube and after a lot of reading i've decided to go for FREErtos(cmsis V2) and lwip using the netconn API (although raw would work as well). The two boards will utilize the same code but i will manually comment out one of these two lines (743 or 744) in the code before flashing the boards.//tcpecho_init();ping_init();  My problem right now is that the code leaves the ping_thread after this line and do not seem to come back no matter if i press the button. (line 601)semaphore_status = xSemaphore

Hello community! We are trying to develop an application based on Ethernet using  LwIP stack in STM32H755ZI-Q nucleo board which supports only RMII mode of configuration. We need a communication to be based on TCP protocol. For this we need some solutions for how to enable the required modules and functions in generated files and please suggest us the example files to transmit and receive the data via ethernet from board to board, board to PC or Board to PLC (Especially the functions and how to configure and pass the function parameters with data). 

How can I permanently write values into the registers of the VL6180x? I tried modifying the loadSettings() in begin(), such as changing the value at 0x0041 to 0x60 and then marking it. However, after repowering, the value at 0x0041 in the VL6180x reverts to 0. Does this mean that the register is volatile memory? Or how should I modify the NVM to write the values I want?Thanks in advance.

Dear,Some images are not shown on STM32 MPU OP-TEE overview and STM32MP15 OP-TEE overview.Thanks!   

Hello, i am trying to configure the on-board TFT-LCD on STM32F429-Disc0 board and i want to do it without using HAL drivers, every tutorial on youtube or other platforms i see, are using CubeMX or HAL or both. I understand we need SPI5 to configure the ILI9341 peripheral (unlike the STM32F7 where only LTDC config is required), i feel there are less resources to - 1) understand the data sheet of the LCD peripheral, its way complicated for a beginner  2) understand the LTDC registers in the reference manual, and what default values should be put into them3) creating functions to write something on the LCD screen, to draw and more, very complex and no one has explained them properly on youtube. I know there is a CubeMX example available which shows stm logo on screen but it also uses HAL and is complicated to understand a proper code structure and the flow of the code and what to do and when. Any suggestions/guidance?

Hello,the VL53L5CX and L7CX ULD guides mention that a target status of 6 and 9 should be considered with a confidence of 50 %, while a comment in the api.h file says that  "5 & 9 means ranging OK", which gives the impression of a higher confidence ration than 50 %. Therefore, my question is: how to exactly deal with measurements with the status 9?