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Hi All,I have implemented EEPROM Emul Middleware in STM32WL project (https://www.st.com/resource/en/application_note/an4894-eeprom-emulation-techniques-and-software-for-stm32-microcontrollers-stmicroelectronics.pdf) in lieu of writing directly in FLASH the NVM Lorawan Context Structure.LorawanEndNode example store the NVM Lorawan Context Structure in FLASH, directly as follow( function OnStoreContextRequest in lora_app.c):if (FLASH_IF_Erase(LORAWAN_NVM_BASE_ADDRESS, FLASH_PAGE_SIZE) == FLASH_IF_OK) { FLASH_IF_Write(LORAWAN_NVM_BASE_ADDRESS, (const void *)nvm, nvm_size); }I changed this function to my own function using EEPROM Emul //store nvm in eeprom writeNVMContext_EEPROMemul ((const void *)nvm, nvm_size);And something similar to restore the context.It is working properly as desired: I store the NVM lorawan context every Uplink/Downlink message. This works for my OTAA session is always ok after poweron/off or hard resets.Save lifetime of FLASH in this case of use:EEPROM Emul: E

I am following this video link showing step by step to create OTA app.https://www.youtube.com/watch?v=mRzZOa3jmuM.I am successfully to create the custom application, download the OTA loader app at 0x08000000, and the custom's app at 0x08007000. The problem I am facing is whenever I sent some data to OTA Reboot characteristic, the custom app is just reset, then go back to the custom app. It didn't enter the OTA loader app. Am I missing something like the erase current app function? I also notice in my custom app, once the ST BLE tool box or ST BLE Sensor app connects to my device, it didn't show the OTA reboot option like when I tried the BLE_p2pServer_ota.

Hello All, We have been stuck with this particular issue for more than a month.For STM32H745, we have enabled only cortex M7 and it has freertos with some logic using a math library.The code runs for some time (between 30 minutes and 2 hour) and gets a hard fault.Looking at debugger it states that a "new" operation was called and it failed due to out of memory.We use __heapstats() in a background task which runs every one second.It doesn't show any leak in the memory as the free heap remains the same.Has anyone faced similar issues?Any pointers is deeply appreciated.

Hi,try setup clock above 200 Mhz (try for revision Y and V) and get error: Error has occured also if you try set D1PRE set above 200 Mhz:

I'm using a mutex to share the I2C bus between an OLED display and an EEPROM. I'm using the IDE to generate the FreeRTOS configuration and tasks initialization (freertos.c file). I have an external file where all the LCD writing occurs. How could I access the mutexes handle generated on freertos.c file from this other file?...   /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN Variables */   /* USER CODE END Variables */ /* Definitions for defaultTask */ osThreadId_t defaultTaskHandle; const osThreadAttr_t defaultTask_attributes = { .name = "defaultTask", .stack_size = 128 * 4, .priority = (osPriority_t) osPriorityNormal, }; /* Definitions for modbusTask */ osThreadId_t modbusTaskHandle; const osThreadAttr_t modbusTask_attributes = { .name = "modbusTask", .stack_size = 64 * 4, .priority = (osPriority_t) osPriorityNormal, }; /* Definitions for dispTask */ osThreadId_t dispTaskHandle; const osThreadAttr_t dispTask_attribu

As the radio equipment standards are very important for entering EU, CN, and USA markets, could you help to communicate with the supplier to provide the information about the standards that must be confirmed as the radio equipment? Such as EN 301489-1.Thanks a lot for the supportIdan A.

Hello everyone! Sorry for a dumb question - I am a piano major. I want to squeeze extra 2-3 bits of the built in DAC and so I have heard that it was possible to increase a DAC resolution by adding jitter. Could please anyone share a link to some not-too-difficult article that explains how to do that and how it works?Thank you!

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I am build an andriod app,device is using ST25DV04K NFC chipi should read first 256 bytes using commnad 0x02,0x23,0x00,0x3fbut failed to read last 256 bytesI try 2 commands:send 0x02,0x23,0x40,0x7f,respone:0x01,0x0fsend 0x02,0x33,0x40,0x00,0x7f,0x00,respone:0x01,0x0fhow to read last 256 bytes?Thank you

I have been reading reading anything i could find on Timers, but I'm still confused about the setup in CubeMx.I just want to trigger a timer in software, that generates a SINGLE pulse with a set width (and if possible after a set dely) on a pin, but the CubeMx configuration is incredibly badly documented and pretty confusing, if you don't already know what you are doing.can someone please point me in the right direction?Also please don't post a bunch of register setups and then say "I don't use CubeMx", that's not what i am asking, and I have seen it on so many forum posts.

Hello Geeks...Hope all are doing wellRecently, I'm working on STM32WB FUOTAI know the FUOTA terminology of the STM32WB through the application document AN5247Moreover, I have gone through the YouTube Tutorial series of the FUOTA for WB seriesI'm trying to update my application over FUOTA but, some how it's verification always fails and it's rollover to BLE OTA loader app!here are the steps which I'm followingUpdated the linker script as per the "BLE_HeartRate_ota" example commented SCB->VTOR from system_stm32wbxx.c file BLE_CFG_OTA_REBOOT_CHAR set to 1 in ble_conf.hAdded the OTA reboot characteristic (which is working well, and MCU able to reboot during the OTA request) Flashed "BLE_Ota" Firmware starting from 0x08000000 flash memory location Flashed the main application Firmware with OTA enable char. starting from 0x08007000 flash memory location Verified the MagicKeywordAddress address 0x08007140Problem statements & Test procedure 1. Application firmware seems work

Reason for asking is that I need to determine which it is as I would like to make use of the ROI capability of the VL53L1 and my understanding is this is not supported by the VL53L0 range. I have the SATEL eval boards, but can for the life of me not remember which one it is as I bought it quite a long time ago. Thanks in advance!Friedl

Hi, I would like to set all 8 pins in port Z to unsecure so i use these pins as other ports. I read data sheet portz is set to secure mode as default after reset. And I tried write into it and system crashed.Thanks

Hi, I'm trying to start a research project using B-G431B-ESC1 and some BLDC motor. I am trying to measure the models of the motor using ST Motor Profiler.However, after connecting the esc to the PC using USB - micro USB cable, it continuously fails to profile the motor.Any suggestions would be helpful. Here's where I'm stuck at. 

We have a product(PCB) in mass production as using VL53L0X.There is a problem with some of our products.We tested before sending customer. There is no problem. But, over time we have received complaints from customers. In this case, We can't communicate with VL53L0X.I want inspection report from the soldering company.Can anyone explain and comment on the report? What is the meaning of gray circle that mentioned with red marked? Why are some small and some big? Could the problem I'm having be because of soldering?I attached full report as a google drive link.https://drive.google.com/file/d/1TuGtgAzskEg01juk0zyNGUpHgvrcmMKi/view?usp=sharing

I'm using an STM32F779 on a known working custom board connected to an EMMC chip (8 wide). I'm using the SDMMC2 peripheral with a DMA channel for Rx as well as Tx and the SDMMC interrupt enabled. My application has two modes, in the first I log data and in the presence of USB it acts as a MSD. When connected via USB the host computer reads out blocks and interprets the file system correctly. However, after some period the SDMMC2 - DATA_TIMEOUT interrupt occurs when it shouldn't and breaks the system (DMA_TX is zeroed and then eventually a hard fault occurs).The DCTRL register does not self clear after a transaction but is cleared at the beginning of a new read or write. This implies that as long as a read/write is performed at least once before the timer expires there is no issue.

I have a question, I don't know if 3911 in the image below is jtag download code or SWD.

what's the dimension of STM32F746IEK6. Especially for thickness, is there any tolerance ?

Hi, I have an ELF file modified to write to the main memory address 0x08004000 instead of 0x08000000. Please find the screenshot below and the ELF file in the attachment.But instead of writing to 0x08004000 it constantly writes to 0x08000000. Why is this happening?

I have a custom board with the l452cc controller. I am trying to run an sd card with fatfs through spi. I have generated cubemx fatfs files, but there is no interface layer for spi to fatfs. Are there some examples I can reference off of, or what is the best way to approach this?Thanks.

Edit: It's always embarrassing when you ask a question and immediately afterwards you find what you where looking for...Please ignore this question.---Original question: I'm starting to work with the STM32WB5MM-DK, but I can't find the schematics. Are they not available yet?For some first visual feedback I wanted to use the RGB LED, but the user manual of the DK says: "In this configuration, GPIO_SELECT2 (PH1) is the chip select for this RGB device on SPI1.The RGB LED is driven by the TLC59731 PWM LED driver from Texas Instruments."Unfortunately theTLC59731 doesn't have a chip select. And the data protocol is not SPI, but some weird "EasySet" single wire interface.So I would like to check the board schematics, to understand how the TLC chip is wired to the STM.

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Does the SPC560 can program in appilication (IAP) ?How CAN I do to implement the user bootloader? Is there any document about it? and the Chip has the BAM, is it means that ,I can user the factory bootloader to update the program via usart or FlexCan? Is there any document about the factory bootloader protocol , and the windows dll or the APP?

When developing touchGFX applications you tend to get a pretty high memory need.I'm working with the CubeIDE integration of TouchGFX and tried to add a third screen (with a third background image). I got an error saying that the application would not fit in my FLASH. After a bit of digging it seems that the linker files don't mention the QSPI at all. I can add that to the linker files but I would like to know if there is an official way of doing this?I found some documentation on this but I'm not sure if this is the right way to go about it.What goes where in the memory and how do I control it? if at all?Thanks!