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Chapt 5. Android 12 TV system instructions
5.15.3. 26pin SPI test method
1) The SPI that can be used in 26pin is SPI1, and the corresponding device node is /dev/spidev1.1
2) Here is a demonstration to test the SPI1 interface through the w25q64 module, first connect the w25q64 module to the SPI1 interface
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It doesn’t matter if there is no w25q64 module, because there is a SPIFlash connected to SPI0 on the development board, and the configuration of SPI0 is also enabled by default in Android, so we can also directly use the onboard SPIFlash test.
3) Then open the wiringOPAPP on the desktop
 Img 5.69
4) Then click the SPI_TEST button to open the SPI test interface
 Img 5.70
5) Then select the spi device node in the upper left corner.
If you directly test the onboard SPIFlash, then keep the default /dev/spidev0.0. If you connect the w25q64 module to the 26pin spi 1, then please select /dev /dev/spidev1.1
 Img 5.71
6) Then click the OPEN button to initialize the SPI
 Img 5.72
7) Then fill in the bytes that need to be sent, such as reading the ID information of the onboard SPIFlash, fill in the address 0x9f in data[0], and then click the TRANSFER button
 Img 5.73
8) Finally, the APP will display the read ID information of the onboard SPI Flash
 Img 5.74
9) If it is to read the w25q64 module connected to 26pin SPI1, then the read ID information is shown in the figure below
 Img 5.75
10) The MANUFACTURER ID of the w25q64 module is EFh, and the Device ID is 4017h, corresponding to the value read above (h stands for hexadecimal)
 Img 5.76
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