Raspberry Pi - SPI Communication
Which method is used to send and receive data simultaneously over SPI using spidev?
Which method is used to send and receive data simultaneously over SPI using spidev?
easy🧠 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the method for full-duplex SPI transfer
spidev'sxfer2()method sends data and receives response in one call.Step 2: Eliminate other options
open()opens the device,read()andwrite()are not spidev methods for full-duplex transfer.Final Answer:
spi.xfer2() -> Option CQuick Check:
Full-duplex SPI transfer = spi.xfer2() [OK]
Quick Trick: Use spi.xfer2() to send and receive SPI data together [OK]
Common Mistakes:
MISTAKES- Using spi.open() to transfer data
- Assuming spi.read() or spi.write() exist in spidev
Master "SPI Communication" in Raspberry Pi
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