StarFive VisionFive 2 - Loopback Test; Figure 6-2 Connect Pin 19 with 21; Figure 6-3 Example Output


6.2.1.LoopbackTest

 
Figure6-2ConnectPin19with21
 spidev_test.c
cd /linux/tools/spi
 
make CROSS_COMPILE=riscv64-linux-gnu- ARCH=riscv
Result:
spidev_test 
 spidev_test 
chmod +x spidev_test
 
ls /dev/spidev*
Result:
Figure6-3ExampleOutput
spidev1.0 
 
./spidev_test -D /dev/spidev1.0 -v -p string_to_send
Tip:
spidev1.0 
Result:



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