| AVR和TMS320VC5402的HPI接口通信设计 |
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| 引用本文： | 周国辉,王晓东,刘金国,郝志航.AVR和TMS320VC5402的HPI接口通信设计[J].微计算机信息,2005(25). |
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| 作者姓名： | 周国辉 王晓东 刘金国 郝志航 |
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| 作者单位： | 长春光学精密机械与物理研究所，长春光学精密机械与物理研究所，长春光学精密机械与物理研究所，长春光学精密机械与物理研究所 |
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| 摘 要： | TMS320VC5402(VC5402)不具有可编程的非易失片内存储器,必须外扩存储程序代码和参数的存储器,在多数场合仅仅简单的扩充此类存储器会造成系统设计的繁琐。利用AVR单片机片内大容量的flash存储器来存储DSP的程序和参数,使系统的整体设计更加紧凑,并弥补了VC5402控制和通用通信功能的不足,这不失为一种有效的解决办法。文中详细分析了AVR单片机(ATMEL64L)同VC5402的HPI接口通信硬件设计和DSP程序代码的加载方法。在通信软件的设计方面着重阐述了通信协议和DSP的bootloader实现方法。
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| 关 键 词： | AVR 主机接口 bootloader 数字信号处理器 |
Design of communication between AVR and TMS320C54x HPI |
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| Zhou,Guohui Wang,Xiaodong Liu,Jinguo Hao,Zhihang Zhou,Guohui.Design of communication between AVR and TMS320C54x HPI[J].Control & Automation,2005(25). |
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| Authors: | Zhou Guohui Wang Xiaodong Liu Jinguo Hao Zhihang Zhou Guohui |
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| Affiliation: | (Changchun Institute of Optics,Fine Mechanics and Physics,Changchun 130023)Zhou,Guohui Wang,Xiaodong Liu,Jinguo Hao,Zhihang (Graduate School of the Chinese Academy of Sci- ences,Beijing 100049)Zhou,Guohui |
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| Abstract: | TMS320VC5402 (VC5402) doesn ' t have pro- grammable non- volatile memory, so it is necessary to expand non- volatile memory for saving program codes and parameters. In many applications, this architecture makes design complex. It is a good way that DSP program codes and parameters are saved in on- chip flash memory of AVR. So, the compacted design is achieved and the disadvantages of VC5402 on control and gener- al communication functions are compensated. On the basis of analysis on VC5402 HPI interface, hardware design of communi- cation between ATMEL64L AVR and VC5402 HPI is provided. In the aspect of communication software design, communication protocol and DSP HPI bootloader are discussed in particular. |
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| Keywords: | AVR HPI bootloader DSP |
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