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

Resolved! Accurate ADC reading with Bluepill

Hello all,for my DIY Radio Controller (LoRa and STM32F1C8) i am using two joysticks and one poti.I am reading ADC with the DMA but what i noticed is that the ADC values are not so accurate.I know with not (professional, expensive) Potis and joysticks...

hamo by Senior
  • 1210 Views
  • 3 replies
  • 0 kudos

Resolved! STM32L552CCT6 Unable to erase flash memory

I can't erase the flash in the STM32L552CCT6 with the code below. I wonder if my code is wrong. When I check the memory, the 2kB from the flash address 0x803F800 is not 0xFF. The reason it wasn't 0xFF originally seems to be because something other th...

Resolved! Too high current draw in shutdown mode

I'm just getting started with my STM32WB15CC nucleo board, and my first goal was to put in shutdown mode to check the current draw, which I expected to be around 1 uA. I'm measuring the current on the JP3 header with a joulescope which should represe...

minded by Associate II
  • 196 Views
  • 3 replies
  • 1 kudos

STM32G4 Interrupt Enables I2C

Is it necessary to enable interrupts in I2C_CR1 if I only want to look at the flags but don't want to go into the interrupt service routine? For instance, I want to be able to look at the status of RXNE and see if it is set, but I don't actually want...

tomm5771 by Associate III
  • 116 Views
  • 1 replies
  • 0 kudos

Resolved! STM32F103: HSE Crystal Capacitors

Hello Which are the correct Capacitors to use for HSE on STM32F103 with the following Crystal?Frequency: 8 MHzLoad capacitance CL: 20 pF Thank you in advance for a quick hint.RegardsMichael 

Resolved! Crystals and load capacitors for stm32l432

Posted on July 10, 2018 at 14:37I've been designing sub-gram boards for data logging on songbirds using the stm32l432.  Although mostly I use ultra-low power external RTCs, I recently built a test board using a 4pf 32768 crystal.  The question was t...

Geoffrey1 by Associate III
  • 2473 Views
  • 5 replies
  • 0 kudos

Resolved! STM32 HSE Crystal

Hello, I'm using an STM32H750VB and am trying to use the HSE crystal to communicate over USB to my computer, but it isn't able to connect to my computer. I suspect that the issue lies with the crystal since I tried to probe it with an oscilloscope an...

Avid_0-1740015744386.png Avid_1-1740015879677.png
Avid by Associate II
  • 520 Views
  • 3 replies
  • 0 kudos