STM32 MCUs Products

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I2C1 Negative Overshoot - STM32U5G9

We are using STM32U5G9's I2C with a diff-I2C to single ended I2C converter IC PCA9616. PCA9616 is used to program the STM32 MCU over I2C1 by converting diff-I2C to single ended I2C.However, while probing the I2C1 of the STM32U5G9, we are seeing negat...

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
  • 127 Views
  • 12 replies
  • 4 kudos

STM32G474 FDCAN tx buffers

Since the description of the FDCAN controller in the reference manual ofthe STM32G474 was not detailed enough, I looked around for more Informationand found the Application Note AN5348 ("FDCAN peripheral on STM32 devices ").But that didn't make me fe...

ULehm.1 by Associate III
  • 3431 Views
  • 5 replies
  • 1 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
  • 540 Views
  • 3 replies
  • 0 kudos

"Jumps" in ADC output of stm32G474RET6 using DMA

I am running the ADC using a timer trigger and DMA to sample a sinusoidal signal.The captured samples are transmitted to a PC via UART.However, as shown in the attached image, the ADC output appears to be step-like and does not capture smoothly chang...

1000028368.jpg

USB-PD attention callback never get's triggered?

Problem When i call * USBPD_PE_SVDM_RequestAttentionI get a OK message response but the callback never gets called.  * USBPD_VDM_SendAttention Curious to know if there's any good way to debug this?  Current debugging stepsI have a STM32G0-Disco board...

Current2.png Current capture.png Screenshot 2025-12-21 at 10.12.14 AM.png Screenshot 2025-12-21 at 10.01.39 AM.png

STM32G4 -- Flash via I2C-Bootloader Problem

Hi,We are facing the same issue like the below community post. https://community.st.com/t5/stm32-mcus-products/flash-via-i2c-bootloader-problem-for-stm32g0b1kbu6/m-p/636467#M234685 But we are using  'STM32G431RBT6' in our project, kindly let us know ...

Ananthu by Associate II
  • 217 Views
  • 8 replies
  • 0 kudos

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
  • 89 Views
  • 2 replies
  • 0 kudos