原标题：TI AM3358 ARM Cortex-A8微处理器测试评估和开发解决方案

　　TI 公司的TMDXEVM3358是AM335x ARM Cortex-A8微处理器的评估模块,能对AM335x 处理器(AM3352, AM3354, AM3356, AM3358) 进行测试评估和开发，包括EVM基板,子板和LCD显示模块,主要用于游戏机外设,售货机,家庭和工业自动化,称重仪,消费类医疗设备,教育控制台,打印机,高挡玩具和智能收费系统.本文介绍了AM335x 主要特性,方框图,AM335x评估模块(EVM)系统框图,基板和子板方框图,电路图以及PCB布局图.

　　The AM335x microprocessors, based on the ARM Cortex-A8, are enhanced with image, graphics processing, peripherals and industrial interface options such as EtherCAT and PROFIBUS. The device supports the following high-level operating systems (HLOSs) that are available free of charge from TI:

　　• Linux®

　　• Windows® CE

　　• Android™

　　The AM335x microrocessor contains these subsystems:

　　• Microprocessor unit (MPU) subsystem based on the ARM Cortex-A8 microprocessor.

　　• POWERVR SGX™ Graphics Accelerator subsystem for 3D graphics acceleration to support display and gaming effects.

　　• Programmable Real-Time Unit Subsystem (PRUSS) enables the user to create a variety of digital resources beyond native peripherals of the device. In addition, the PRUSS is separate from the ARM core. This allows independent operation and clocking to give the device greater flexibility in complex system solutions.

　　AM335x 主要特性:

　　AM335x 应用:

　　• Gaming Peripherals

　　• Connected Vending Machines

　　• Home and Industrial Automation

　　• Weighing Scales

　　• Consumer Medical Appliances

　　• Educational Consoles

　　• Printers

　　• Advanced Toys

　　• Smart Toll Systems

　　图1.AM335x 功能方框图

　　AM335x评估模块(EVM)

　　The AM335x Evaluation Module (EVM) enables developers to immediately start evaluating AM335x processors (AM3352, AM3354, AM3356, AM3358) and begin building applications such as portable navigation, portable gaming and home/building automation, among others.

　　The AM335x general purpose EVM is a standalone test, development, and evaluation module system that enables developers to write software and develop hardware around an AM335x processor subsystem.

　　The main elements of the AM335x subsystem are already available on the base board of the EVM, which gives developers the basic resources needed for most general purpose type projects that encompass the AM335x as the main processor. Additional typical type peripherals are built into the EVM such as memory, sensors, LCD, Ethernet PHY, etc. so that prospective systems can be modeled quickly without significant additional hardware resources.

　　The System View of the AM335x General Purpose EVM consists the baseboard, daughterboard, and LCD display board stacked together and connected through standard throughhole connectors. See the pictures below of the EVM.

　　图2.AM335x评估模块(EVM)外形图

　　图3.AM335x评估模块(EVM)系统框图

　　图4.AM335x 15x15 基板方框图

　　图5.AM335x通用子板方框图