STM32 MCUs Products

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SPI data size reducuction to 1-bit

I have a rather strange request, but I am communicating to a Digital Potentiometer (AD5227) over SPI.  The chip has 64 available positions, but can only increment or decremement its position by 1 for each clock cycle.  To increment by 1, a 1 is place...

JSext.1 by Associate II
  • 5298 Views
  • 12 replies
  • 1 kudos

STM32F 407 &&& 2 USB MASS STORAGE DEVICE

Good evening guys, I have an educational project for the USB protocol on the stm23f407 discovery board I made the project on two sensors and each sensor is written to a flash drive on a separate usb_otg_host port because the stm32f407 discovery board...

Resolved! STM32H723 ADC read stuck (using LL libraries)

Hello,In my project I just sometimes need to read ADC values. I figure I could simply connect two of my signals to ADC1 and ADC2 respectively.What it strange that it does sometimes working, but sometimes it is stuck at constant value ( maybe first re...

Linas L by Senior II
  • 2838 Views
  • 4 replies
  • 1 kudos

Resolved! SPI value doesn't update in STM32F746

Hello, I'm using a STEVAL-PLC001V1 card. It is based on a STM32F746ZGT7 that is linked to a CLT01-38SQ7 for inputs and ISO8200AQ for outputs, using SPI.I try to read datas sent through SPI by the CLT01-38SQ7 and then send it back to the ISO8200AQ.My ...

CGAUC.1 by Associate II
  • 3044 Views
  • 6 replies
  • 0 kudos

i am trying to wakeup stm32lo from sleep mode by interrupt push button connected to pA3

 HAL_SuspendTick();        /* Enter Sleep Mode,        *        */   HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);        /* Resume Tick interrupt if disabled prior to SLEEP mode entry */       HAL_ResumeTick();I HAVE THE ABOVE CO...

NASOK.1 by Associate II
  • 1390 Views
  • 1 replies
  • 0 kudos

Help me understand why my UART communication fails

Good morning, my product is made of 2 parts, each of which has a dedicated MCU. MCU1 is STM32L476ZG and MCU2 is STM32L4P5CG. The whole device is supplied through a wall adapter working at 24VDC. Internally,the voltage is converted to supply all the m...

mdiro by Associate III
  • 8798 Views
  • 7 replies
  • 0 kudos

CAN communication on STM32F429ZIT6 problem

Hello, I initialized CAN on STM32F429ZIT6 on registers. I would like to tranmitt and receive messages. But on transmission lines is silence. In my opinion I forgot about any register, but I don't know which. So could you help me what i sholud change ...

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michal3 by Associate
  • 914 Views
  • 0 replies
  • 0 kudos

P-NUCLEO-LRWAN3 ETHERNET: DHCP TO STATIC modify problem

I am using a P-NUCLEO-LRWAN3 product.1- At the beginning, I need to change  ETHERNET: DHCP to STATIC. Later, I wanted to change to DHCP again with this code: 13:12: AT+IP= DHCPAT+IP= DHCP+IP: NETMASK ERROR 2- I can not use Loriot server due to error ...

LProj.1 by Associate
  • 1221 Views
  • 0 replies
  • 0 kudos