?? ?Xilinx（賽靈思）公司的汽車（XA）電子控制單元（ECU）套件" title="開發套件">開發套件是基于賽靈思公司滿足汽車應用標準的低成本Xilinx XA Spartan-3E 現場可編程門陣列（FPGA）器件。XA 汽車 ECU套件為快速開發車內網絡、信息娛樂、輔助駕駛以及駕駛信息系統提供了一個平臺。它該套件包括一個帶有預工程化硬件接口的開發板，支持眾多汽車應用IP。利用這一完整的開發環境，汽車設計人員可快速完成器件評估，迅速完成設計并開始運行。本文介紹了Xilinx的Spartan-3E FPGA系列主要性能，以及汽車電子ECU 開發套件 (HW-XA3S1600E-UNI-G)的主要性能和方框圖。
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?? ?賽靈思汽車（XA）電子控制單元（ECU）開發套件是基于賽靈思公司滿足汽車應用標準的低成本Xilinx XA Spartan-3E 現場可編程門陣列（FPGA）器件。XA 汽車 ECU套件為快速開發車內網絡、信息娛樂、輔助駕駛以及駕駛信息系統提供了一個平臺。
?? ?XA汽車ECU開發套件。該套件包括一個帶有預工程化硬件接口的開發板，支持眾多汽車應用IP。利用這一完整的開發環境，汽車設計人員可快速完成器件評估，迅速完成設計并開始運行。
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?? ?XA 汽車 ECU開發套件提供了開發完整子系統所需要的所有元器件，包括配有一片XA Spartan-3E 160萬系統門FPGA的XA1600E開發板，板上硬件接口，如CAN 2.0B 和 C、Ethernet 10/100、USB 2.0、SPI 和 SCI。預先驗證的賽靈思和第三方應用IP為開發MOST 系統、FlexRay 連接以及高速和低速CAN總結接口提供了必要的構建模塊。該套件還包括一個帶有通用適配器的電源、編程和定制串行電纜、快速入門指南以及包含方便評估的參考設計的資源CD。同時還支持賽靈思嵌入式開發套件和ISE設計工具評估版。
關于XA Spartan-3E FPGA
? ?XA Spartan-3E FPGA系列滿足大批量成本敏感汽車電子應用要求。該系列的五款器件提供從10萬至160萬系統門不同密度和不同封裝組合。XA器件同時提供擴展溫度范圍Q-Grade (-40°C 至 +125°C Tj) 和 I-Grade (-40°C 至 +100°C Tj)器件，并且符合業界公認的AEC-Q100標準。與此前的器件相比，這些90nm器件單位美元成本提供了更多功能和I/O帶寬，在可編程邏輯行業確立了新標準。由于其超低成本，XA Spartan-3E FPGA提供了優異的替代解決方案，避免了ASIC和ASSP的高掩膜成本和長開發周期。
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一．Spartan-3E FPGA系列
The Spartan-3E family of Field-Programmable Gate Arrays (FPGAs) is specifically designed to meet the needs of high volume, cost-sensitive consumer electronic applications.
The five-member family offers densities ranging from 100,000 to 1.6 million system gates.The Spartan-3E family builds on the success of the earlier Spartan-3 family by increasing the amount of logic per I/O, significantly reducing the cost per logic cell. New features improve system performance and reduce the cost of configuration.
These Spartan-3E enhancements, combined with advanced 90 nm process technology, deliver more functionality and bandwidth per dollar than was previously possible, setting new standards in the programmable logic industry.
Because of their exceptionally low cost, Spartan-3E FPGAs are ideally suited to a wide range of consumer electronics applications, including broadband access, home networking, display/projection, and digital television equipment.
The Spartan-3E family is a superior alternative to mask programmed ASICs. FPGAs avoid the high initial cost, the lengthy development cycles, and the inherent inflexibility of
conventional ASICs. Also, FPGA programmability permits design upgrades in the field with no hardware replacement necessary, an impossibility with ASICs.
Spartan-3E FPGA系列主要特性：
Very low cost, high-performance logic solution for high-volume, consumer-oriented applications
Proven advanced 90-nanometer process technology
Multi-voltage, multi-standard SelectIO interface pins
- Up to 376 I/O pins or 156 differential signal pairs
- LVCMOS, LVTTL, HSTL, and SSTL single-ended signal standards
- 3.3V, 2.5V, 1.8V, 1.5V, and 1.2V signaling
- 622+ Mb/s data transfer rate per I/O
- True LVDS, RSDS, mini-LVDS, differential HSTL/SSTL differential I/O
- Enhanced Double Data Rate (DDR) support
- DDR SDRAM support up to 333 Mb/s
Abundant, flexible logic resources
- Densities up to 33,192 logic cells, including optional shift register or distributed RAM support
- Efficient wide multiplexers, wide logic
- Fast look-ahead carry logic
- Enhanced 18 x 18 multipliers with optional pipeline
- IEEE 1149.1/1532 JTAG programming/debug port
Hierarchical SelectRAM memory architecture
- Up to 648 Kbits of fast block RAM
- Up to 231 Kbits of efficient distributed RAM
Up to eight Digital Clock Managers (DCMs)
- Clock skew elimination (delay locked loop)
- Frequency synthesis, multiplication, division
- High-resolution phase shifting
- Wide frequency range (5 MHz to over 300 MHz)
Eight global clocks plus eight additional clocks per each half of device, plus abundant low-skew routing
Configuration interface to industry-standard PROMs
- Low-cost, space-saving SPI serial Flash PROM
- x8 or x8/x16 parallel NOR Flash PROM
- Low-cost Xilinx Platform Flash with JTAG
Complete Xilinx ISE and WebPACK development system support
MicroBlaze and PicoBlaze embedded processor cores
Fully compliant 32-/64-bit 33 MHz PCI support (66 MHz in some devices)
Low-cost QFP and BGA packaging options
- Common footprints support easy density migration
- Pb-free packaging options
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二．汽車電子ECU 開發套件 (HW-XA3S1600E-UNI-G)
? ?The Automotive ECU Development Kit (HW-XA3S1600E-UNI-G) is a configurable and extensible platform suited for a wide range of automotive applications right out of the box.
圖1 汽車電子ECU 開發套件外形圖
?? ?With its small form factor, it can be easily placed in standard metal housing. The board was designed to be powered by a 12-volt power supply for in-vehicle prototype use. Powered by a completely field-configurable Spartan-3E FPGA platform, this kit:
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?? ?Combines programmable logic for custom driven IP applications with the Xilinx MicroBlaze 32-bit microprocessor core.
?? ?Features robust memory subsystem containing on-board Flash and SRAM memory.
Supports standard Automotive and System-on-chip peripherals including all necessary physical layers on board the ECU, such as JTAG, 10/100 Ethernet, USB 2.0, 12-bit ADC, High and Low Speed CAN, FlexRay, LIN, K-Line, UART, SPI and over 150 user programmable I/Os.
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ECU 開發套件包括：
XA1600E development board with the XC3S1600EFG484 device
Power supply with universal adaptor
Programming cable
Custom serial cable
QuickStart guide
EDK and ISE evaluation tools
Resource CD with reference designs for easy evaluation
ECU 開發套件主要特性：
Xilinx device: XC3S1600EFG484 FPGA
Complete out-of-the box development system
On-board hardware interfaces such as CAN 2.0C, Ethernet 10/100, USB 2.0, SPI, and SCI
Support for pre-verified Xilinx and Partner IP for High and Low Speed CAN, FlexRay and MOST network interfaces.
Daughter card is required for MOST interface.
ECU 開發套件目標應用：
Automotive subsystems
In-vehicle networking systems
Infotainment
Driver assistance and information systems
The XA1600E provides designers with a configurable ECU right out of the box suitable for a wide range of Automotive and Industrial applications.
Please review the following reference manual thoroughly to receive the most of your new purchase.
The XA1600E is a complete 32-bit Field Configurable ECU platform, combining the highly popular Xilinx MicroBlaze processor core with standard System-on-Chip peripherals and over 150 user programmable I/O’s. It is contained within a Xilinx Spartan-3A FPGA with programmable logic for custom driven IP applications, a robust memory subsystem, and a full suite of Automotive and Industrial peripherals. The XA1600E enables programmable System-on-Chip applications and expands traditional development platforms by including necessary physical layers onboard the ECU. The XA1600E supports physical layers for 10/100 Ethernet, JTAG, USB 2.0, 12-bit ADC, High and Low Speed CAN, FlexRay, LIN, K-Line, UART, and SPI along with on-board Flash and SRAM memory.
圖2 ECU 開發板方框圖