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STM32L073 datasheet incomplete information

Hi,As per DS10685 Rev 7 (https://www.st.com/resource/en/datasheet/stm32l073v8.pdf), there are so much information missing, for example:1. Table 17 doesn't mention that the USB pins D+ and D- are bound to PA11 and PA12 ports, respectively, but Table 1...

XR.1 by Senior
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  • 2 replies
  • 1 kudos

Resolved! STM32L476 SPI3 Using DMA2 Chan 2. No Transmit.

Hello Everyone. My how the forum has changed. Just dropping a recent odd experience here to see if anyone might have any comments. No. I don't use CubeMx and no this isn't another 3 year anniversary item regarding initializing the DMA before any peri...

Octospi vs FMC

Hi,I am doing a new design of a board and I am wondering what is better to have as in interface for a external memory FMC or Octospi? Thank you

aabba.1 by Associate III
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  • 2 replies
  • 2 kudos

Resolved! STM32CubeIDE 1.13.2 not showing X-Cube-Mems1

Hi All,I have configured for STM32L071xx xx controller bare metal. I was not able to find X-Cube-Mems1 for the controller.Please me know if LIS2MDL (or Mems package) is not supported on STM32L0 series?PFA screen shot of the STM32Cube IdeThanks,Milind

mvk by Associate
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  • 1 replies
  • 0 kudos

Resolved! RTC clcok slow when turning on LTDC

Hi,I am using a custom board to do some application (https://www.waveshare.com/openh743i-c-package-b.htm). On this application I should turn on LTDC (to use it with touchgfx) and I am also using the RTC.When I am only using RTC alone, the RTC clock i...

aabba1_0-1702234030670.png
aabba.1 by Associate III
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  • 2 replies
  • 0 kudos

Resolved! CORDIC for phase(atan2) not much faster than math.h atan2

I have two functions to calculate the phase via DFT. In both functions, real and imaginary parts are first calculated, and then the phase is determined using different methods.The first function employs the standard atan2f function from the math.h to...

GHrib.1 by Associate III
  • 2344 Views
  • 2 replies
  • 3 kudos

Resolved! flags to use to enable FPU on STM32H5 MCUs

In this document it's stated that STM32H5 devices implements the FPv5 floating-point extensions.From there, how do I know the proper flags to pass to gcc to enable the FPU? -mfpu=fpv5-sp-d16 -mfpu=fpv5-d16other ? 

HPhar.1 by Associate
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  • 2 replies
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STM32F334C8T6,main program is stuck

I wrote an interrupt service function HRTIM1_TIMA_IRQHandler() for PID tuning at a frequency of 200kHZ. Is this frequency selection reasonable, after I enabled this IRQHandler, the main program in main.c no longer works, what is the reason?

LXCCCC by Associate
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  • 4 replies
  • 1 kudos

RTC Not Running

Hi, I had configured the clock to LSI RC 37KHz using cubemx with AsynchPrediv is 124 and synchPredivdivider is 295 after the RTC initialisation i'm trying to read the time using HAL_RTC_GetTime() but i'm getting the values what i initialised but d...

Resolved! Reading temperature from adc value(Non linear)

Hi,I am using STM32G491RE. I have to read temperature values from ADC. We  used voltage divider circuit to map the voltage values with temperature values it is non linear change between volatge and temperature.I tried below wayconst uint16_t adc_valu...