STM32 MCUs Embedded software

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Resolved! How to get a ADC resolution?

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_VOL...

ubaldot by Senior
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  • 6 replies
  • 5 kudos

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
  • 2552 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
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  • 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
  • 1225 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
  • 1004 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
  • 3469 Views
  • 7 replies
  • 4 kudos