STM32 MCUs Products

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Forum Posts

Reducing interrupt latency on STM32U575

I'm trying to implement a serial bit-stream input (PCM-style) on an STM32U575. I have set up an EXTI channel to capture the incoming clock signal and then I'm using the following code in the ISR to capture the data bits:__attribute__ ((section(".RamF...

Resolved! STM32H7 SPI 32BIT CRC Confusion

Hello, I am having an issue implementing a 32 bit CRC 0x04CDB117I am quite confused by the documentation on how to set the a 32 bit CRCI don't understand section 53.5.3 on the most significant bit in in CRCPOLY must be larger than the data size.I don...

kip18 by Associate II
  • 88 Views
  • 5 replies
  • 1 kudos

STM32L071 draw more current than expected

Hello,  I'm using a STM32L071KZT6 on a custom PCB and it was working fine, until after some programming iterations, it suddendly started drawing more current than expected. It reached 220mA to power with 3.3V. This happened twice, in two different mc...

Resolved! What is the DBATTEN Setting in UCPD_CR register

The DBATTEN setting in the UCPD_CR register claims the following But as far as I know, the dead battery functionality is always present. It would have to be to work unless this is stored in NVM.Maybe this DBATTEN is some other Rd value? Maybe the ANA...

Carl_G_0-1751138441369.png
Carl_G by Senior II
  • 244 Views
  • 6 replies
  • 2 kudos

Resolved! STM32 GPIO NMOS

What is the maximum current that the STM32 GPIO can withstand when set to open-drain mode and the NMOS is on without getting damaged?

jacklin by Associate II
  • 134 Views
  • 6 replies
  • 8 kudos

STM32L412RB - Programming

Hi, Is there an option to program the STM32L412RB with DFU / Serial interface? I was programming the STM32F407 with DFU and Serial before and now I want to use the STM32L412RB and program it the same way. I can't find any information on the BOOT1 pin...

ronnabh by Associate
  • 89 Views
  • 4 replies
  • 1 kudos