Chinese user manual for the Lecheng SD Card Reader + Ethernet Development Board, covering hardware features, software setup, and example applications.
The manual introduces the development board built around the CP2200 Ethernet controller and the C8051F340 MCU. It details the integrated web server, file upload, network protocol configuration, and SD‑card data storage functions, aimed at learning, development and secondary product integration.
It provides hardware specifications, a complete parts list, software installation steps for Silicon IDE and KEIL, wiring instructions, and a series of example programs (USB, UART, Ethernet, SD‑card) to help users quickly prototype remote monitoring, data logging, and other networked applications. This manual is written in Chinese.
| CPU | C8051F340 MCU |
|---|---|
| CPU Core Speed | Maximum 48 MIPS |
| Flash Memory | 64 KB on‑chip FLASH |
| RAM | 5 376 B SRAM |
| I/O Ports | 40 I/O pins |
| ADC | 17‑channel, 10‑bit, 200 ksps |
| USB Interface | Full‑speed 12 Mbps, 1 KB FIFO |
| Ethernet Controller | CP2200, IEEE 802.3 compatible, 3.3 V supply |
| Ethernet Flash | 8 KB non‑volatile FLASH |
| Supported SD Card Size | Up to 8 GB |
| Operating Temperature | -40 °C to 85 °C |
The SD card slot can handle cards up to 8 GB in size.
The board operates from a single 3.3 V supply and includes a 5 V‑compatible power‑LED indicator.