Avalon总线SHT11的自定义IP核的开发

Development of SHT11 Customized IP Core Based on Avalon Bus

首先简要介绍了SOPC和Avalon总线,详细阐述了温湿度传感器SHT1自定义IP核的开发流程。该IP核根据其驱动控制器的规范以及时序要求,利用SOPC的Avalon总线,采用嵌套状态机,构建了基于NiosII嵌入式处理器片上系统。CPU通过自定义的IP核对SHT11控制读写,并在农业大棚中应用,测试所得数据准确。其他用户在使用SHT11进行项目开发时,SHT11自定义IP核可以缩短开发周期,降低工作量。

This article briefly describes the SOPC and Avalon bus. The development process of the SHT11 customized IP core is introduced. This IP core adopts the nested state machine according to the device controller specification and the timing request, then an em bedded system on chip based on Nios11 is built. CPU reads and writes SHT11 through the IP core. In the greenhouse of agriculture, the system accuracy is verified. The customized IP core can shorten the development cycle and reduce the workload when other users use SHT11 in the development.