Communication between the 3.5" Primary Display Cape and the Raspberry Pi is interfaced with a high speed 48Mhz SPI connection, which utilizes an on-board processor for direct command interpretation and SPI communication compression, and features a customized DMA enabled kernel. This combination allows this display to output 17FPS when displaying a typical image/video, and can achieve higher depending if the image can be compressed.
The Primary Display Cape is designed to work with the Raspbian Operating System running on the Raspberry Pi, as that is the official Raspberry Pi operating system.
The Primary Display Cape features a breakout header (P2), which enables all of the Raspberry Pi GPIO pins to be accessed while the cape is connected. These can be access with jumper wires or with an IDC ribbon cable.
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