叙述了如何利用FPAG扫描矩阵键盘获取键值,配置CAN控制器MCP2515,从而实现CAN总线数据通信的方法。介绍了装置的硬件构成、芯片选择和组成原理,对FPGA的控制程序进行了分析和设计。实际试验表明,装置实现设计目标,与传统的控制方式相比,降低了功耗、体积,具有更优越的性能,该设计已经应用于厚煤层工作面现场。 Describes how to use the FPAG scan matrix keyboard to obtain key, configure the CAN controller MCP2515, in order to achieve CAN bus data communication method. Describes the device hardware, chip selection and composition of the principle of the FPGA control program was analyzed and designed. The actual test shows that the device achieves the design goal. Compared with the traditional control method, the device reduces the power consumption, the volume and has more superior performance. The design has been applied to the working face of thick coal seam.