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STM32U575VIT6Q I2C interface with LIS2HH12TR is not stable

Hi ST Team,We are using an MCU “STM32U575VIT6Q” and we have connected an ST accelerometer (LIS2HH12TR) to the MCU via an I2C interface. Our schematic design (accelerometer) section is attached. Out of 5 boards we built, accelerometer I2C interface is...

Resolved! USB DFU configuration / use

Hi,I used a F105RCT6 in a custom board, i want to use the DFU mod.When I generate the project with cubemx I select USB DEVICE and DFU mid, i change the clock configuration corectly. I generate the FW, and i flash him.The DFU is running, i open cubepr...

Resolved! tolerance for the decoupling

I'm working on hardware design and have some doubts regarding selecting the tolerance value for the decoupling capacitor for stm32l4 series I have read the application note and data sheet I could not find the value for tolerance.so how can I find the...

vasikarans_0-1698914895304.png

sending same data over DMA

I'm using stm32u535 and LIS3DHTR accelerometer. The accelerometer has a 32 FIFO buffer, and I set it up so that it sends a signal to interrupt pin when FIFO is full. To read data, I need to send 0xE900,0x0000,0x0000 (saved in uint16_t  ACC_READ_ALL_D...

btd5 by Associate II
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Resolved! Hardfault while using TrustZone STM32H573i-DK

Hi everyone,I'm currently experimenting with a STM32H573i-DK and TrustZone and facing some issues.First I tried enabling TrustZone in the Project Creation Process. When i try to run this empty project using the steps:SpoilerSelect and build the xxxxx...

funkii by Associate III
  • 1434 Views
  • 1 replies
  • 1 kudos

Resolved! What is the cause of erratum "2.10.6 Wrong ADC result if conversion done late after calibration or previous conversion"?

I have a mature project utilizing the STM32L4R5xxx series. The main function uses uC's ADC over about 15 channels. As a rule, the ADC readings are taken at a slow rate -- some triggered every 100 ms, others triggered every 5 seconds, and other trigge...

DDrin.1 by Associate II
  • 3153 Views
  • 7 replies
  • 1 kudos

Flexible SPI clock frequency

Hi,We have a need for arbitrary SPI clock frequencies. I looked at ~10 families and most STM32 micro-controllers seem to be limited to prescalers that divide the PCLK by a power of two. I found the STM32H7 but it is wildly over-specified for our appl...

pietrow by Associate
  • 1473 Views
  • 0 replies
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Wakeup from sleep or shutdown via TSC

Hello dear community. I am working on a project with a STM32L462CEU6 powered by battery. In this project we are also using TSC. Now I want STM32 to go in sleep or shutdown mode and wakeup when a touch pad has been touched. So the goal is that TSC mea...

Resolved! HRTIM 100% duty cycle

Hello,is there a solution to generate duty cycles between 0...100% with the HRTIM? I tried up-counting mode and center-aligned mode, but I wasn't able to achieve it. RegardsDominik Schmid

DSchm.3 by Associate II
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