TECHSHIP IS A GLOBAL SUPPLIER OF WIRELESS COMPONENTS
This guide instructs the kernel driver integration development for Huawei modules based on Linux operating system (OS), such as Android, Ubuntu and Chrome OS. It is intended for the driver developers of the products based on Linux kernel OS.
This document mainly describes the power supply design for Huawei modules. This document also provides Huawei modules' requirements for power supplies, which can be used as reference for designing power supplies for Huawei modules. This document is composed of four chapters:
Power Supply Requirements
Power Supply Design Requirements
External Power Supply Circuits
Recommendations for the Layout and Routing of External Power Supply Circuits
Communications through universal asynchronous receiver/transmitter (UART) serial ports is convenient and reliable. UART serial ports are widely adopted in Huawei modules. This design guide describes the serial port specifications of Huawei modules and provides recommended design schemes for peripheral circuits. When designing UART serial ports for Huawei modules, customers can refer to this document.
Most of Huawei modules provide 8-wire serial ports with flow control. These 8-wire serial ports can also be used as 2-wire or 4-wire serial ports.
This document describes the difference in the AT Command specification between the ME909s and the ME909u.
Huawei UpdateWizard for Embedded Linux is the tool which is just for updating the
firmware of Huawei module.
The tool complies with interfaces of Huawei device and is forbidden to apply to
devices of any other manufacturer.