STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Does the STM32 v1.5.1 GCC 7.3.1 toolchain have a limitation of 32-bit arguments for variable argument lists (stdarg.h) ? I am trying to pass 64-bit arguments via a variable argument list and I only see the upper 32-bits set (lower 32-bits are zero).

I'm using the standard ANSI va_args approach here: int64_t arg64 = va_arg(args, int64_t);When stepping through the code the debugger clearly shows me a value like: 0xbeefbeef00000000

MNeed.1 by Associate
  • 758 Views
  • 2 replies
  • 0 kudos

high baud rates dropping carachters

hi i'm using the stm32h750 and in it using the baud rate of 500000 well i want ot go higher but everytime i increase the baud rate there is some charachters dropped or missing in the final received message i tried DMA its worst not filling the buffe...

bakhti by Associate II
  • 2053 Views
  • 16 replies
  • 0 kudos

Different ways(syntax) to write resgisters in Keil IDE

Hi all, i saw someone use a different way to write instructions in keil IDE , where they would write something similar to what i tried to do in the photo.i usually would write which workis just fine , any ideas how to write what im trying to ?

AMat.1 by Associate II
  • 602 Views
  • 1 replies
  • 0 kudos

Write data to flash when power supply drops

Hello,I am using a STM32G473VET6 on my board, and I want to save a few data bytes in Flash when the 24V power supply drops. I have more than 400ms available between the detection by the MCU and the 3.3V dropping. When the ADC triggers this event, the...

ATurp.11 by Associate II
  • 4842 Views
  • 22 replies
  • 0 kudos

Resolved! Copy input pin to output.

What would be an efficient, low latency way to reflect the state of an input pin onto an output pin?Is there anything more automated than configuring the input pin as an EXTI, then in the interrupt handler, reading it and setting the state of the out...

BCoch by Senior
  • 3773 Views
  • 12 replies
  • 0 kudos