STM32 MCUs Products

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Resolved! UART loopback test receives only first character

Hi all, I have an STM32L071VBT6 and want to test the UART functionality. I configured UART4 RX and TX and physically connected them to do a loopback test.  I define 2 arrays to start with /* USER CODE BEGIN PV */ uint8_t Send_buffer[] = "Gateway tes...

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AADW by Associate
  • 196 Views
  • 3 replies
  • 2 kudos

Resolved! STM32F401/RM0368 bad GPIOA->MODER reset value

As reported here, this is obviously incorrect.Also, this has been already reported by Uwe Bonnes for 'F411/RM0383, which has indeed been corrected in the registers description, but the GPIO register map still contains the incorrect value. So, could S...

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Resolved! Timer Problem driving Neopixel (WS2812) LED

Hi everyone. I am driving a Neopixel LED with a PWM signal in DMA mode using a timer. Even though all variables are the same, my code works with timer 3, but the same code doesn't work with timer 2 with the same timer configuration. Why could this be...

Resolved! SRC236 Sample rate converter, noisy

Hy,I have tried to resample a 16bit/8kHz audio signal to 16kHz and 48kHz.Conversion works, but the audio is noisy. I am tested it on development board STM32H747 CM7 core.I have tried libraries: SRC236_CM7_GCC.a and SRC236HQ_CM7_GCC.a without quality ...

KBéla.1 by Associate III
  • 1504 Views
  • 10 replies
  • 6 kudos

STM32H7 DMA issue

HelloMy current requirement is to generate an FSK waveform with two frequencies around 3-5 MHz, a rate of about 700K, and output a square wave using PWM. The method involves switching frequencies by updating ARR and CCR using two timers—one for PWM o...

zhaowhong by Associate III
  • 303 Views
  • 6 replies
  • 0 kudos

Resolved! The “Virtual Port Comm” issue on STM32F407

Hi everyone.I tried adding USB_OTG_FS/Virtual Port Comm to STM32F407VET6 as a device only, but the problem is that when I try to connect the STM32 USB to my PC/laptop, it says “USB not recognized” on my PC/laptop, and I think it might be a problem wi...

images.jpeg stm32f407vet6-mini-development-board-development-boards-motorobit-35797-34-B.jpg
No_Name by Associate III
  • 139 Views
  • 1 replies
  • 0 kudos

How to set the Device Number/Serial Number on stm32

Hello, everyone.So, I want to assign a serial number/device number to all my devices, and each device has a different serial number/device number. My question is, how can I change the serial number/device number with the same firmware without having ...

No_Name by Associate III
  • 119 Views
  • 1 replies
  • 0 kudos