STM32 MCUs Products

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STM32G491 FDCAN: Issue with error counters

I have been simulating errors on the bus by removing the other node (a motor controller). As expected I see a number of failed transmissions. I can see that the FDCAN peripheral signals an Active Error on the bus (presumably as a result of not gettin...

Resolved! Unable to perform multi-byte SPI; Single OK

Hello -Board - STM32 NUCLEO-L476GPeripheral board ADXL313 (16 byte data registers)Interface - SPII  can perform single byte read, combine the 2, 8 bit values and the data is correct. Yet, when I try to perform a 2 byte SPI read, it's garbage. This wo...

roger99 by Associate III
  • 2200 Views
  • 12 replies
  • 1 kudos

STM32G4 without VSSA pin

I'm using the STM32G431CBU3 in a project that shares the same ground for digital and analog supplies, but the UFQFPN-48 package doesn't have a VSSA pin like the others. What should I do in this situation? Should I consider VREF as my VSSA? 

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Liann1 by Associate
  • 793 Views
  • 2 replies
  • 2 kudos

Resolved! Problem with LCD 128x160 ST7735S

Hi, have any of you communicated with a display based on the ST7735S controller? Based on this library: https://github.com/afiskon/stm32-st7735  I converted it from SPI communication to 8080 parallel control, but display does not work properly, while...

MSzła.1 by Associate III
  • 1800 Views
  • 5 replies
  • 1 kudos

Resolved! Locking micro to prevent download of code

Hi,where do you set programmatically (perhaps through a preprocessor directive) the option to lock the micro to prevent read/download of the flashed code but while obviously still allow for firmware updates?Also I could not seem to find any such opti...

Ricko by Senior III
  • 845 Views
  • 3 replies
  • 2 kudos

STM32F411 embedded bootloader USB

Hello, i am trying to use system bootloader in STM32F411 for software update via USB. I use a freertos in my project.Workflow is here: By sending a "BOOT" via Virtual Com Port USB, MCU executes folowing code: SpoilerUSBD_Stop(&hUsbDeviceFS);uint32_t ...

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