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本文先简单的介绍了I2C总线系统的结构组成以及其软件与硬件两方面的特征,然后重点阐述I2C总线系统的故障维修。故障维修具体包括进入I2C总线系统的维修模式排除软件故障,利用I2C总线自检判断故障部位和进行I2C总线系统的硬件检修的方法。另外还讲述了CPU的更换原则和存储器更换时的数据拷贝。最后通过两个维修实例对维修方法进行验证。
This article first briefly introduced the structure of the I2C bus system as well as its characteristics of both software and hardware, and then focuses on the I2C bus system fault repair. Specifically, the fault repair includes entering the maintenance mode of the I2C bus system to troubleshoot the software fault, using the I2C bus self-test to determine the fault location and performing hardware maintenance on the I2C bus system. Also describes the CPU replacement principle and memory replacement data copy. Finally, the maintenance method is validated by two maintenance examples.