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Resolved! Copy input pin to output.

What would be an efficient, low latency way to reflect the state of an input pin onto an output pin?Is there anything more automated than configuring the input pin as an EXTI, then in the interrupt handler, reading it and setting the state of the out...

BCoch by Senior
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  • 12 replies
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SD Bus speed mode

Hello,as I see at the AN5200 only in DS and HS the signal level is 3.3V.Does it mean that the IO signal level in SDR50 for example will be 1.8V on the host side?The MCU has internal LDO for it ?Or the host size is always 3.3V, and the signal voltage ...

Pkats.1 by Associate II
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  • 2 replies
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ADC DMA Double / Multiple Buffer Example

Hello,I was searching in every STM32 CubeMX pack examples for ADC DMA with Double / Multiple Buffering. But I found nothing.I found in dma_ex hal file the functions like HAL_DMAEx_MultiBufferStart (or HAL_DMAEx_MultiBufferStart_IT), but they aren't u...

Does main() require an infinite loop?

This page says:"With a custom main() on Arduino, do not return from main(). As there is no operating system running on a standard Arduino, there is no where to return to. If you do return, abort() is called, then exit(). On the AVR-8 MCU ( Uno, Mega ...

The BOOM by Associate III
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  • 21 replies
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Let the LED flash 3 times without using a blocking code

The point is that when you press a button, an LED should flash three times.If you press the button again while it is flashing, the LED must flash 3 times again.The whole thing should be implemented without blocking code.I could could use a loop to ma...

FLamb.2 by Associate II
  • 818 Views
  • 1 replies
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Floating point error not working.

Dear ST Hello,I have a big problem with floating point calculations,I am trying to implement the IIR filter to filter a current but the result is Zero.Sometimes the watch expression window shows me 0 but the input filter is not zero. /* Get the HImax...

Tsemr.1 by Associate II
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  • 6 replies
  • 0 kudos