STM32 MCUs Products

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Resolved! I2C Not Working

I am unable to get the I2C line on my STM32H750VB to connect with my PCA9685 PWM driver on my custom PCB. The I2C line is constantly high, which I have seen on multiple oscilloscopes. I got the software online from a tutorial on the PWM driver and wa...

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Avid by Associate III
  • 1033 Views
  • 3 replies
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Resolved! DTCM cache DMA issue

Device is STM32F765VI.I'm using DMA to fill data allocated from DTCM, for some reason this seems to be caching.My understanding is that DTCM doesn't need cache management, help me if wrong here.  If I don't enable the data cache everything works as e...

_EFrie by Senior
  • 369 Views
  • 1 replies
  • 0 kudos

STM32G0 NRST input structure and clamping diodes

 Hello, i am interested in the input structure of the NRST pin of the STM32G0x0 series. The datasheet shows a reduced diagram. My question is: is there a more detailed version of the input structure. Is a clamping diode to Vcc build in? If so, which ...

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pp_ee by Associate
  • 299 Views
  • 1 replies
  • 0 kudos

Resolved! CAN Cyclic Frame with 100ms using a timer

Hi everyone,I'm using the STM32F407 for CAN Communication with the Loopback Mode. I'm trying to send a cyclic frame using a timer.I'm using the timer2 with a clock of 84MHz (APB1), a prescaler of 8399 so i will have a tick every 1ms and a period of 1...

Azizz by Associate III
  • 1571 Views
  • 9 replies
  • 3 kudos

STM32 PDM Interfacing with DFSDM Nucleo-L476RG

I'm trying to use a STM32 Nucleo-L476RG to get audio from a PDM MEMs Microphone (Infineon IM66D120A) using DFSDM and save the audio to an SD Card. I'm able to write to the SD card using SPI but I'm not able to get any usable audio recorded onto the S...

STM32F103 RTC + VBAT date resets after power off

Posted on February 28, 2017 at 12:35Im using STM32F103C8T6 and have issues with RTC and VBAT. Project generated in CubeMX 4.19.0 for Keil, I commented date and time setup in MX_RTC_Init() and time restores fine after reset/power off, but date become...

rokko by Associate II
  • 5577 Views
  • 14 replies
  • 0 kudos