基于DSP芯片的高速数字电路模块BIT设计

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随着雷达数字化和智能化,含有多个DSP芯片的高速数字电路模块得到了越来越广泛的应用;针对基于DSP芯片的高速数字电路模块构成的信号处理系统诊断能力弱的问题,提出了通过优化模块BIT软件设计提高模块故障诊断能力的方法;分析了该类模块的BIT测试需求,着重介绍了模块主要BIT测试项目的测试原理和设计方法;通过模块自检软面板对模块BIT测试方法进行了验证;试验结果表明该方法具有实用性强、成本低等优点.

With the development of digital and intelligent radar, the high--speed digital circuit module comprising a plurality of DSP chips have been more widely used. The signal processing system is made of high--speed digital circuit modules based on DSP chips. Aimed at the weak diagnostic capability problem of the signal processing system, the paper puts forward the method of optimizing the module BIT software design to enhance the module＇ s ability of fault diagnosis. The BIT test requirements of the module are analyzed. And the main BITtest i- tem＇ s test principle and design method for the module are highlighted. The module BIT~ s test method is validated by the module self--test software panel. The test results show that the method has the adv...