摘要
SEP3203是东南大学自主研发的基于ARM7TDMI内核的一款微处理器.该处理器内置了LCD控制器,在与VGA接口的模块连接时需要对其进行转换.同时该处理器内部没有I2C总线控制器,在需要使用I2C总线进行通讯时要用GPIO口对其进行模拟.本文将介绍基于SEP3203处理器的LCD转VGA接口的硬件设计框架,以及用GPIO口模拟I2C总线的软件设计.
SEP3203 is a microprocessor which designed by Southeast University independently.When SEP3203 connects to module which has VGA interface,it need for transforming because the microprocessor only has LCD controller.We have to simulate I2C bus by GPIO of SEP3203 microprocessor,when we need transmit by I2C bus.In this paper,we will introduce the design of LCD to VGA interface,and simulating I2C bus by GPIO of SEP3203 microprocessor to achieve transmission of data.
出处
《电脑知识与技术（过刊）》
2007年第14期445-446,502,共3页
Computer Knowledge and Technology
