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Microcontroller-minimum system design based on 51

Overview

Design a minimal system using 51 chips.
This is the actual picture:
There is no typeC interface, so it has not been soldered yet. During the soldering process, I found that the capacitor under the chip was a little outside, so I needed to move it inward.
![WeChat picture_20230516080029.jpg]

![WeChat picture_20230516074853.jpg]

Light up the LED. When burning, you must cold start, that is, cut off the power, in order to burn successfully.
Source program:
#include

void Delay500ms() //@11.0592MHz
{
unsigned char i, j, k;

i = 22;
j = 3;
k = 227;
do
{
do
{
while (--k);
} while (- -j);
} while (--i);
}

void main()
{
while(1)
{
P2=0xFE;
Delay500ms();
P2=0xFF;
Delay500ms();
}

}

Design Files

0ebb31900d73f0d78a06f7e9962c1273.mp4

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Update:2025-06-19 04:07:09

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