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简单论述P89C51RD2的ISP和IAP功能,给出实现读取其Boot ROM源代码的硬件电路和程序;初步探讨ISP功能中的波特率自动跟踪技术、命令字的接收格式和执行方式,给出部分源代码。
Briefly discusses the ISP and IAP functions of the P89C51RD2 and gives the hardware circuits and programs for reading the source code of its Boot ROM. It also discusses the automatic tracking of the baud rate in the ISP function, the format and execution mode of the command word, Source code