Technical documentation for the 74HC574 IO expansion module by Guanglun Electronics, covering hardware setup and software debugging on the Kelper11 board.
The 74HC574 module acts as an IO expansion chip for the Kelper11 smart hardware development board, significantly extending the board's capabilities. The document provides an overview of the module and references the chip's standard datasheet for detailed specifications.
Hardware debugging instructions include a physical view of the module, schematic interface diagrams, and a pin‑connection table for the microcontroller. Software debugging is based on Guanglun Electronics' TreeOS architecture, with guidance to use the TreeOS driver library for integration. This manual is written in Chinese.
| Number of 74HC574 chips used | 2 |
|---|---|
| Supported development board | Kelper11 |
It serves as an IO expansion chip on the Kelper11 smart hardware development board.
The schematic is included in the received AD project under the DeviceForDigitalExtended Interface folder.
The module is debugged using Guanglun Electronics' TreeOS architecture and its driver library.