STM32 MCUs Products

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Resolved! USBX CDC for the stm32u5 in standalone (no RTOS) problem

Hello,I implemented a virtual com port using the usbx stack for the stm32U575 in standalone mode and it basicaly works.My problem is that I just can't put more than 8 bytes in the TX buffer at the time. If I do the program gets stuck (in the main loo...

ckoec by Associate II
  • 301 Views
  • 2 replies
  • 1 kudos

Resolved! STM32 Peripheral lock (STM32h755)

I am working on an  application where I plan to relocate all non-safety modules to the CM4 core. To achieve full safety, I need a mechanism to lock the peripherals so that the CM4 core cannot access any peripherals configured in the CM7 core, includi...

sarun by Associate III
  • 266 Views
  • 3 replies
  • 1 kudos

assembly code analysis

Can anyone comment on the prologue and epilogue of following CM7 code, particularly the content of r7 when the routine returns? { 0: b480 push {r7} 2: af00 add r7, sp, #0 if ((ANADIG_MISC->MISC_DIFPROG & ANADIG_MISC_MISC_DIFPRO...

Observing a data shift in SPI receiption

Hi Team,I am observing a shift in a data each time i am sending same data from ESP8266 master to STM32f103RCT6 slave controller but each time i am getting different data and seems to be the shifted data as i can see some part of strings sent. I have ...

AADESH by Associate II
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  • 4 replies
  • 0 kudos

Resolved! writing flash memory failure

Hi everyoneI'm using a STM32F401RCT6 to control a valve actuatorThere is a counter of number of cycles for the actuator (RunTime), and when its value changes, the value of that counter must be stored in the memory for tracking and support.The actuato...

Resolved! Troubleshooting bricked Discovery STM32H745I board

I tried flashing a project created for the STM32H745I-DISCO board in CubeMx. The only change I made was disable a few unused peripherals, enable memory caching. I set the clock speed for the M7 core to 480MHz and the M4 core speed to 240MHz. I add...

Resolved! Timer 1 Retriggerable One-Pulse Mode

Hi, I want to do something extremely basic. Trigger a pulse using software for Timer 1 which is configured in Retriggerable One-Pulse Mode. Background: I can do the above if the Timer 1 is in normal One-Pulse mode. By simply Writing the CEN bit in TI...

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STM32F103C8T6 Firmware for Bootloader

Greetings to the community,I have a problem with creating a firmware for the bootloader. I'll start a little differently:Some time ago I made a bootloader for STM32F407VET6. The only thing I did was change the memory length in the STM32F407VETX_FLASH...

Chlaban by Associate
  • 372 Views
  • 2 replies
  • 1 kudos

USB connection problems with STM32F7

Hello,In one of our products we've moved from a PIC32 to a STM32F7. The product is self powered and has a USB connection (USB-Device Full-Speed, HID). Everything works as expected normally. Sometimes however, when I plug in the USB cable, I get an er...

os81 by Associate III
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  • 5 replies
  • 5 kudos