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C8051F311 Minimum System Board

Overview

C8051F311 Minimal System Board

Front view C8051F311, all IO leads, reserved for external crystal oscillator.

Board introduction

The configuration is basically the same as the official F330 board, but there is no RS232 interface reserved.
Use CH340N as USB-TTL chip, only RTS and CTS are left blank.
There is a 500mA self-restoring fuse onboard to prevent the USB from being burned by a short circuit.
Provides C2 debugging interface, which can be debugged using U-ECx.
USB power supply/debugger power supply optional.
Reserve the external crystal oscillator bit.
Provides a reset button.
One LED and one button are reserved for development.

pit

The 3V3 package was chosen to be a less commonly used one, in order to consume the voltage regulator chips that were used for free.
The 5V power supply has no lead, and the 3V3 has only one lead.
The QFN package soldering iron provided by Lichuang is difficult to solder.

Other pictures

Rear view (Back view) UART official routine (Official UART routine) (Keil debugging)

Attached are the Keil debugging driver, peripheral configuration tools and download software for U-EC6

Design Files

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