This blog will share the production of the minimum system of 51 microcontroller and how to download the program.
The first materials to prepare are: a board, an 89c51/52 chip, a 51 chip socket, a 12MHZ crystal oscillator, a 10 resistor, and a 10uf electrolytic capacitor
Two 20-33pf ceramic capacitors, some wires, and a small switch
The circuit diagram is as follows:
That small switch is the reset switch. Once it is made, you can download a small program to see it. . . . . .
It is very easy to make a minimal system, but when I download the program, I always put the program on the development board and burn it before inserting it into the base. However, the general base has structural problems and the pins of the 51 microcontroller chip are too soft. It is easy to insert it several times. It is disconnected, so next I will share how you can burn any program without pulling out the chip (of course, if you have a USB to serial port, ignore this method)
First, unplug the chip from the development board and connect the VCC, GND, P3^0, and P3^1 of the smallest system you soldered to the development board:
In this way, you can burn the program directly.............
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Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.
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