Freescale MCF5329 POS参考设计

Freescale公司的POS系统参考设计是基于MCF5329 ColdFire微处理器和MCS908QG8微控制器,是安全的工业POS系统,采用开源嵌入的µCLinux软件解决方案,能以低成本和很短的开发周期来实现灵活的连接选择和安全通信或人工接口.本文提供了参考设计的主要特性,POS参考设计的方框图以及MCF532x系列的主要特性和POS参考设计的完整电路图.

The Point of Sale Reference Design demonstrates how the control, security, and connectivity features found on the MCF5329 ColdFire Microprocessor and MCS908QG8 Microcontroller work together to create a secure Industrial Point of Sale System. Complete with an Open Source Embedded µCLinux Software Solution, the Point of Sale Reference Design serves as a great reference for any industrial design that requires flexible connectivity options, secure communication, or a human interface at a low cost and with a fast development cycle.

主要特性:
The Point of Sale Reference Design was designed with the following considerations:

Low system cost
Easy and intuitive graphical user interface
Multiple connectivity solutions to accommodate various POS system connectivity requirements
Secure networking communications, transactions, and memory accesses
Fast development cycle
The Industrial Point of Sale Reference Design also features an Open Source Software Solution:
µCLinux Operating System running on the MCF5329 Microprocessor
NanoX Graphical User Interface (GUI) Configuration Tool running in the µCLinux environment
Communication protocol for secure ethernet transactions
MySQL Server Database used to store/access sales transactions



图1.工业POS系统参考设计方框图.



图2.工业POS系统参考设计外形图.

The MCF532x family takes industrial control efficiency to the next level with an integrated super video graphics adapter (SVGA) LCD controller that helps reduce overall system cost by supporting a variety of LCD panels from one single embedded controller chip. Building on the competitive high-performance legacy of the 68K/ColdFire® family, these devices offer up to 211 (Dhrystone 2.1) MIPS at 240 MHz, placing them among the highest performing processors in their class. Advanced features include an enhanced multiply-accumulate (eMAC) unit, which handles DSP-like instructions, and an integrated SDRAM controller that supports either double data rate (DDR) or single data rate (SDR) memory.ConnectivityFor applications requiring enhanced human-machine interfaces, the MCF532x family enables higher performance and increased flexibility for virtually any combination of system-to-system, in-system or networked communication. MCF532x embedded controllers offer both an integrated universal serial bus (USB) host and an integrated USB On-The-Go (OTG) module, as well as three on-chip universal asynchronous receiver/transmitters (UARTs) for direct communication between computers, terminals and other devices. The MCF532x family also features an integrated queued serial peripheral interface (QSPI) and an inter-integrated circuit (I2C) for in-system communication and supports networked communication via the integrated Fast Ethernet controller (FEC) and controller area network (CAN) modules.

SecurityData protection is a critical requirement for connected embedded applications. The MCF532x family offers an optional on-chip hardware encryption module that is designed to support a variety of encryption algorithms and protocols while maintaining high overall system performance.
MCF532x 主要特性:

ColdFire V3 Core
Up to 211 (Dhrystone 2.1) MIPS @ 240 MHz
Enhanced MAC module and hardware divide
Integration
Integrated SVGA LCD controller
16 KB I/D-Cache
32 KB SRAM
USB 2.0 full-speed host controller
USB 2.0 full-speed/high-speed** OTG controller
10/100 Fast Ethernet Controller (FEC) (MCF5328 and MCF5329 only)
Hardware accelerated encryption (MCF5329 only)
Enhanced CAN 2.0B controller (MCF5329 only)
Three UARTs
QSPI
Serial synchronous interface (SSI)
I2C bus interface
4-channel, 32-bit timer with DMA support
4-channel PWM timer
16-channel DMA controller
16-bit DDR/32-bit SDR SDRAM controller
Up to 94 general purpose I/O
System integration (PLL, software watchdog)
1.5V core, 2.5V DDR, 3.3V I/O voltages
Availability
Temperature range: -40°C to +85°C
Package options MCF5329 and MCF5328: 256-ball MAPBGA MCF5327: 196-ball MAPBGA



图3.MCF532x系列方框图.



图4.POS系统参考设计电路图(1)



图5.POS系统参考设计电路图(2)



图6.POS系统参考设计电路图(3)



图7.POS系统参考设计电路图(4)



图8.POS系统参考设计电路图(5)



图9.POS系统参考设计电路图(6)



图10.POS系统参考设计电路图(7)



图11.POS系统参考设计电路图(8)



图12.POS系统参考设计电路图(9)