"AT89C51单片机编程电路应用及远程重编"

The AT89C51 microcontroller is a popular choice for embedded systems due to its Flash-based memory and versatile features. This application note focuses on the in-circuit programming capability of the AT89C51, highlighting the advantages and steps required to implement this feature in a circuit design. It provides guidelines on how to add in-circuit programmability to AT89C51 applications, along with a detailed application example showcasing the modifications needed to support in-circuit programming. One of the key benefits of in-circuit programming is the ability to remotely reprogram the microcontroller over a commercial telephone line. This adds flexibility and convenience to the development process, as programmers can update the firmware without physically accessing the device. The application note demonstrates a method for remote reprogramming of the AT89C51 microcontroller, enhancing its usability in a variety of applications. Overall, this application note serves as a valuable resource for designers and engineers looking to integrate in-circuit programming into their projects using the AT89C51 microcontroller. The step-by-step instructions and insights provided help optimize the functionality and performance of the microcontroller in embedded systems, making it a versatile and reliable choice for programming circuits.