基于TMS320VC5509A的低功耗人机接口模块设计  

Design of Low Power Consumption Man-Machine Interface Module Based on TMS320VC5509A

作　　者：魏春娟[1,2] 郑喜凤[1] 丁铁夫[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院研究生院,北京100039

出　　处：《液晶与显示》2008年第6期751-755,共5页Chinese Journal of Liquid Crystals and Displays

基　　金：中国科学院东北振兴科技行动计划重点项目基金赞助(No.DBZX-2-017)

摘　　要：介绍了基于高速低功耗DSP芯片TMS320VC5509A的人机接口模块的设计方法。结合SED1335液晶显示控制器的特点,给出了DSP与慢速液晶显示模块接口的硬件电路,分析了DSP控制液晶显示的软件编程。对TMS320VC5509A低功耗控制的关键问题进行了讨论,详细分析了DSP、SDRAM、LCD模块等的低功耗实现。该设计方案取得了良好的低功耗效果,对于便携式仪表及手持设备的开发具有借鉴意义。Design methods of man-machine interface module based on high-speed and low-power DSP TMS320VC5509A were introduced. Combined with the characteristics of SED1335 LCD display controller, hardware connection between DSP and low-speed LCD module was given, and then software programming of LCD display controlled by DSP was analyzed. Meanwhile, low power consumption was focused on during the design, and several key problems of low power were discussed. Furthermore, the realization of reducing power on DSP, SDRAM, LCD module, etc. was deeply analyzed. The results show that the methods reduce power greatly, and they could be helpful to the design of portable or handheld devices.

关 键 词：TMS320VC5509A 液晶显示模块 SED1335 低功耗 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TP316.2[自动化与计算机技术—计算机科学与技术]