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AT89C51基于闪速微控制器的片内可编程性的介绍
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2009-06-27
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This application note illustrates the in-circuit programmability of the Atmel
AT89C51 Flash-based microcontroller. Guidelines for the addition of in-circuit programmability to AT89C51 applications are presented along with an application
example and the modifications to it required to support in-circuit programming.A method is then shown by whichthe AT89C51 microcontroller in theapplication can be reprogrammedremotely, over a commercial telephoneline. The circuitry described in this application note supports five volt programming only, requiring the use of an
AT89C51-XX-5. The standard AT89C51requires 12 volts for programming.
The software for this application may beobtained by downloading from Atmel’sBBS: (408) 436-4309.
AT89C51 Flash-based microcontroller. Guidelines for the addition of in-circuit programmability to AT89C51 applications are presented along with an application
example and the modifications to it required to support in-circuit programming.A method is then shown by whichthe AT89C51 microcontroller in theapplication can be reprogrammedremotely, over a commercial telephoneline. The circuitry described in this application note supports five volt programming only, requiring the use of an
AT89C51-XX-5. The standard AT89C51requires 12 volts for programming.
The software for this application may beobtained by downloading from Atmel’sBBS: (408) 436-4309.
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