STM32 MCUs Products

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STM32-HAL CAN transmits empty messages

I'm trying to transmit messages through CAN using HAL library. For test I repeated code from the first part of this video I have the same bluepill so I just did the same. Also I've tried his project, but changing Nucleo RE to ZE model. I've looked th...

0693W00000KaJJxQAN.png 0693W00000KaJKbQAN.png
LFili.2 by Associate
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  • 0 replies
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SPI Slave mode using DMA and soft NSS

I'm trying to transmit some data using DMA as a slave SPI device. I'm sending 8 byte but the peripheral always gives me 9 byte on the MISO line (first byte twice). The Master NSS is connected to a GPIO input (SPI_ENABLE) using external interrupt Mode...

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wh by Associate III
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  • 5 replies
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Please improve DFSDM section of reference manual.

I've managed to get the DFSDM working with a PDM microphone (on a STM32L496 board) - using direct access to registers. But the documentation often made things more difficult than they needed to be. Just a few extra sentences, less ambiguous language ...

gregstm by Senior III
  • 2326 Views
  • 9 replies
  • 1 kudos

How to switch the operator for B-L462E-CELL1 board?

Hello,I wanted to experience data transmission through NB-IoT in Canada by using a Cellular Discovery Kit (B-L462E-CELL1).The eSIM is activated and the board communicates with echoclient, but it selects the operator automatically. Unfortunately, the ...

S.R.M. by Associate
  • 448 Views
  • 0 replies
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Effect of pull up without supplying power to MCU

As shown in above figure.The EXT/GPIO pin directly connected to MCU with pull up resistor (10K).So once the switch press the PMOSFET start switching supply to MCU.Please let me know the effect of voltage on EXT/GPIO pin without suppling power to MCU.

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cWagh.1 by Associate
  • 900 Views
  • 4 replies
  • 0 kudos