STM32 MCUs Products

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STM32L051C8 comparator consumption

Hi,I have a strange problem on an STM32L051C8 with the comparators enabled in window mode.If I put the system in stop about 20 seconds after powering the microcontroller, the current draw is about 250 uA. If I then exit the stop mode with a soft rese...

Ufoit by Associate II
  • 82 Views
  • 2 replies
  • 0 kudos

STM32G070 software reset issue

I was doing reset through SPI command and expected results are not happening. this is the line i was expecting to reset the MCUSCB->AIRCR = (NVIC_AIRCR_VECTKEY | (SCB->AIRCR & (0x700)) | (1 << NVIC_SYSRESETREQ));where#define NVIC_AIRCR_VECTKEY (0x05F...

aravindpv by Associate III
  • 81 Views
  • 10 replies
  • 4 kudos

LWIP + FreeRTOS Ping Issues

Hi all,I've been working through this tutorial: How-To-Create  to bring up LWIP + FreeRTOS on the STM32H735IGK development kit. I'm using STM32CubeIDE 1.18.0, FreeRTOS with CMSIS-v1, and STM32Cube FW_H7 version 1.12.1I noticed that pinging is very sp...

arp_stops_responding.png ping_intermittent_wireshark.png intermittent_ping.png ethernetif.png
merakian by Associate II
  • 529 Views
  • 2 replies
  • 0 kudos

STM32H7: SPI problem with SPI_RXDR

I am using the STM32H725RE (68-pin package).My goal is to have full duplex SPI communication with a 16 bit shift register using the stm32h7 as the SPI master (with no dma controller).I am using the SPI3 with the following pin (12MHz)PA15 (SPI3_nCS), ...

Fabian3_1-1738063907629.png
Fabian3 by Associate
  • 832 Views
  • 3 replies
  • 0 kudos

Trying to source a 12.288MHz clock for STM32L433

 I am trying to source a 12.288MHz clock for an STM32L433 but having difficulties finding something.The clock is required for I2S playback with a bluetooth receiver (BT401).I have tried using the internal MSI RC to generate the 12.288MHz clock for SA...

freeflyer_0-1766340884039.png

I2C with repeated start.

I have seen the question asked many times, references made but the question never gets answered with precision.  So, once again...I want to use HAL_I2C_Master_Seq_Transmit_IT along with receive to read an I2C device register.1. START SLAVEADDRESSWR (...