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Forum Posts

SPI only gives 16 clock cycles, but my data is 64 bytes

I am trying to communicate with a wifi module with stm32f769's spi interface. My data packet is 64 bytes, but the spi only provides 16 clock cycles, Hence the datapacket sent is invalid. Can anyone tell me what could be the possible solution for this...

Rtomy.1 by Associate II
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  • 2 replies
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LPUART is stuck after HAL_UART_Receive. L081KZT6

Hello,I have some Issues with LPUART1 on a STM32L081KZT. What I want to do is:- Receive Data of variable length via LPUART1 using the HAL_UART_Receive function.- Reading bytewise in a loop- Using an External Interrupt to start the receive.My Code loo...

HRaup.1 by Associate II
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  • 2 replies
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Sampling PWM pulse

Hello,In my project I need to sample single PWM pulse with ADC (Current and Voltage). I'm using STM32L451CCU.I have configured timer 15 to produce PWM signal with channel 1 and used channel 2 as the clock source for triggering timer 2 through ETR1 , ...

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H7A3 HSE crystal choice

I'm going way out on a limb and designing a small uController board based on the STM32H7A3. I've been prototyping the software for a while now on a STM32 Nucleo H7A3 and a STM32 H7B3 Disco board. The Nucleo board uses the 64 Mhz HSI clock but calls...

magene by Senior II
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  • 2 replies
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Resolved! very strange STM32F40x RTC issue

I have a very strange issue with an STM32F405RG/407VG regarding the RTC: it only works, when I am in debugging mode and add the “hrtc�? struct into live expression and the instance handle is open!My code is pretty simple: I have 2 globals:RTC_TimeTyp...

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CBerg by Senior II
  • 880 Views
  • 3 replies
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HAL-Lib MPU Configuration Question

Hello,I would like to know if there is a possibility to readback the MPU confiugration for each configured region? HAL only provides a setter function. If I take a look into the internal implementation, it seems that regions get overwritten, when I ...

Floki.1 by Associate II
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  • 0 replies
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STM32H745I-Disco PWM Input Frequency Not detecting

Hi, I am trying to detect a 3v PWM frequency with my STM32, I have my live expresions setup for my variables, but the values do not budge from 0. Im sure it is something up with my code. Any help would be appreciated cheers.

CChri.5 by Associate III
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  • 6 replies
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