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微程序汉字点阵生成器是系统的重要部件,它高速和无失真地把汉字压缩信息复原成高质量汉字点阵,并以低的代价实现文字变倍。 我们用DJS-130机程序模拟生成器的硬件操作来验证硬件设计的正确性,模拟中发现了几处逻辑设计错误,在硬件装配前及时改正了这些错误。实践证明:用回收和分析生成器输出数据总线的办法,进行故障诊断是廉价、有效的。
Micro-program Chinese dot-matrix generator is an important part of the system, it high-speed and distortion-free compression of Chinese characters into high quality Chinese dot matrix, and at a low price to achieve text zoom. We use the DJS-130 program to simulate the hardware operation of the generator to verify the correctness of the hardware design. Several logic design errors were found in the simulation and these errors were rectified in time before hardware assembly. Practice has proved that: the recovery and analysis of the generator output data bus approach to fault diagnosis is cheap and effective.