基于TMS320C6713的嵌入式网络接口设计

Design of embedded ethernet interface based on TMS320C6713

嵌入式设备接入以太网已经成为目前研究的一个新领域,为了解决TI C6000系列DSP与以太网的通信问题,本文首先介绍了一种新型的10/100 M自适应以太网控制器SMSC LAN9218I,然后在认真分析了DSP TMS3200C6713的EMIF(外部存储器接口)的基础上,给出了LAN9218I与TMS320C6713的硬件接口的电路设计,编写了LAN9218I网卡的驱动程序。经过实验表明该网卡达到了预期的设计目的,实现了DSP接入以太网。并且该网络接口应用广泛、可移植性强,可以经过修改在其他C6000系列DSP上实现软硬件移植。

At present, the connection of embedded equipment and ethernet is becoming a new realm, in order to solve the problem of communication between DSP of TI C6000 series and ethernet, the introduction of a new-type 10/100 M auto-adapted ethernet controller is given first, then after seriously analyse about the EMIF of DSP TMS3200C6713, the circuit design of hardware interface, SMSC LAN9218 and DSP TMS320C6713, is given, the driver of NIC（network interface card） LAN9218I is completed also in this paper. The experiment indicates that the NIC designed purpose has been achieved, so the connection of DSP and Ethernet is implemented. At the same time, the NIC has the characteristic of wide application, strong transplantablity, it＇s hardware and software can be transplanted after modified on the other DSP of TI C6000 series.