Abstract: To build an embedded system platform based on WinCE system, the first thing to consider is to design a good HID (human interface device) device to meet the needs of users; however, the existing standard PS2 keyboard and USB keyboard are too large to meet the actual needs. This design aims at the special requirements of human-computer interaction devices in embedded applications, uses 8051 microcontroller to build the keyboard hardware part to communicate with the SPI interface of S3C2410 chip, and writes the SPI keyboard driver based on WinCE system to implement this application.
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