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connect the pin to stm32 so i can controll it
pengujn

pengujn

@copilot connect the pin to stm32 so i can controll it
2y

copilot

To connect the ST25R3911B RFID reader IC (U2) to the STM32G031G8U6 MCU (U1) for control, you'll likely want to use the SPI interface. Here are some typical SPI connections you might want to make:
  • Connect STM32G031G8U6's SPI1 MOSI (PA7:13) to ST25R3911B's MOSI (U2:30).
  • Connect STM32G031G8U6's SPI1 MISO (PA6:12) to ST25R3911B's MISO (U2:29).
  • Connect STM32G031G8U6's SPI1 SCK (PA5:11) to ST25R3911B's SCLK (U2:31).
  • Connect STM32G031G8U6's SPI1 NSS (PA4:10) to ST25R3911B's /SS (U2:32).
You'll also need to connect some additional signals:
  • Connect the IRQ (U2: 27) to an input pin on the STM32G031G8U6 (such as U1: PA0:6) to handle interrupts from the ST25R3911B.
  • Connect a common ground. Connect VSS/VSSA (U1:4) to VSS_1 (U2:21) and VSS_2 (U2:33)
  • Connect the supply voltage (3.3V). Connect VDD/VDDA (U1:3) to VDD_IO (U2:1), VDD (U2:8), VSP_D (U2:3), VSP_A (U2:7), and VSP_RF (U2:9)
Note: Pin numbers and names for the STM32 can vary between models and packages, so be sure to double-check these against your specific MCU's datasheet.
It's crucial to initialize the corresponding SPI and GPIO modules in the STM32's firmware. Please check the datasheet and reference manual of STM32G031G8U6 for more information on how to setup SPI communication, and how to properly configure these pins.
The assumptions so far are based on a common use-case, but your actual connections may also depend on more factors such as any additional external components used, physical PCB layout, power requirements among others.
Let me know if you have any other questions, or if there are more specifics about your project that could affect these connections!
2y
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