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gpios=reset:0,dc:3 rotate=90 speed=65000000 bgr=1 txbuflen=65536
4) When the fbtft_device kernel module is loaded, the correct output log of the dmesg
command is shown below, and the log can know that the framebuffer used by the LCD
screen is fb8
root@orangepipcplus:~# dmesg | tail
[ 99.471345] fbtft_device: SPI devices registered:
[ 99.471383] fbtft_device: spidev spi0.0 33000kHz 8 bits mode=0x00
[ 99.471405] fbtft_device: 'fb' Platform devices registered:
[ 99.471554] fbtft_device: Deleting spi0.0
[ 99.472469] fbtft_device: GPIOS used by 'fb_ili9341':
[ 99.472493] fbtft_device: 'reset' = GPIO0
[ 99.472510] fbtft_device: 'dc' = GPIO3
[ 99.472525] fbtft_device: SPI devices registered:
[ 99.472554] fbtft_device: fb_ili9341 spi0.0 65000kHz 8 bits mode=0x00
[ 99.796157] graphics fb8: fb_ili9341 frame buffer, 320x240, 150 KiB video memory,
64 KiB buffer memory, fps=20, spi0.0 at 65 MHz
5) Then use the following command to display the Orange Pi logo picture on the LCD
screen
root@orangepi:~# apt update
root@orangepi:~# apt -y install fbi
root@orangepi:~# fbi -vt 1 -noverbose -d /dev/fb8 /boot/boot.bmp
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