STM32 MCUs Embedded software

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1. If we are logging data for the long period (48hour or 96 hour) Sometimes garbage file create in sd card other than our create file. 2. Some times file corrupt and not open on the computer. What is the reason of this issue??

Dear Community Member, I am working on the data acquisition and logging is SD card. In this project i am using stm32l452RET6 uC to interface SD card in SDIO mode with fatfs. It is working file when we are logging for the shorter time. I am creating o...

KPras.2 by Associate III
  • 2935 Views
  • 8 replies
  • 1 kudos

Resolved! LWIP + D-Cache problem (STM32H747I-DISCO)

Greetings, I have a problem with LWIP when the D-Cache is enabled. My test program:int main(void){ /* USER CODE BEGIN 1 */  /* USER CODE END 1 *//* USER CODE BEGIN Boot_Mode_Sequence_0 */  int32_t timeout;/* USER CODE END Boot_Mode_Sequence_0 *//* E...

hzoli by Associate II
  • 2011 Views
  • 3 replies
  • 3 kudos

I'm having problem with B-L462E-CELL1 evaluation board to connect to truphone network via eSIM in Australia. I'm able to use plastic sim card from telstra to stablish the connection. I'm receiving this error:

AT%CEER?<CR>  <CR><LF>  %CEER: 1,"NAS-EMM","ATTACH","REJECT",#15,NO_SUITABLE_CELLS_IN_TRACKING_AREA<CR><LF>  <CR><LF>  OK<CR><LF>Here is the modem configuration:Cellular Service InfosModem state     : 4 (Modem registered on network)Signal Quality    ...

Desh by Associate
  • 1356 Views
  • 3 replies
  • 1 kudos

Resolved! while loop requires semicolon or not

When I run the below code snippet, it just runs for once, however when I added semicolon as in latter code piece, it runs as expected, continously. Could you please tell me why is the difference? /* USER CODE BEGIN WHILE */ while (1) { /* USER COD...

demir by Senior II
  • 1119 Views
  • 5 replies
  • 1 kudos

Resolved! Help debugging a USB composite HID device

I'm trying to create a composite HID device, mouse+joystick. I'm using the HID mouse profile as a starting point and then add a second interface. I also used an already existing example as a guide: the Arduino core based on the HAL is maintained by S...

fbar by Senior
  • 3941 Views
  • 7 replies
  • 4 kudos

STM32 Nucleo-u5a5zj USB host

I have a Nucleo-u5a5zj board and I want to connect a NewLand FM430 scanner that works as a virtual COM port. In the example, I only saw the USB CDC ACM device, but I only need the configuration for the host. Can you give me more explanation of what I...

GhostVVS by Associate II
  • 1988 Views
  • 7 replies
  • 1 kudos

Resolved! Is Azure RTOS free for STM32F767xx MCUs?

Please let me know if I can use the Azure RTOS free with the STM32F767xx MCU and if it is free how can I use the same on my NUCLEO-F767ZI board? Please response as soon as possible. I need this to use the file system and also the ethernet/USB communi...