ADI公司的ADSP-BF52x是600MHz高性能Blackfin处理器,采用ADI/Intel的微信号架构(MSA),包括了双MAC的信号处理引擎,RISC类微处理器指令以及SIMD多媒体功能.而ADSP-BF527 EZ-KIT Lite评估板通过基于USB PC主机的高性价比评估 DSP-BF527的平台.本文介绍了ADSP-BF52x主要特性,方框图,ADSP-BF527 EZ-KIT Lite评估板贴片电感厂主要特性,系统框图,电路图,材料清单和PCB布局图.
The ADSP-BF52x processors are members of the Blackfin family of products, incorporating the Analog Devices/Intel Micro Signal Architecture (MSA). Blackfin® processors combine a dual-MAC state-of-the-art signal processing engine, the advantages of a clean, orthogonal RISC-like microprocessor instruction set, and single-instruction, multiple-data (SIMD) multimedia capabilities into a single instruction-set
architecture.
The ADSP-BF52x processors are completely code compatible with other Blackfin processors. The ADSP-BF523/ ADSP-BF525/ADSP-BF527 processors offer performance up to 600 MHz. The ADSP-BF522/ADSP-BF524/ADSP-BF526 processors offer performance up to 400 MHz and reduced static power consumption.
ADSP-BF52x主要特性:
Up to 600MHz high performance Blackfin processor
Two 16-bit MACs, two 40-bit ALUs, four 8-bit video ALUs, 40-bit shifter
RISC-like register and instruction model for ease of programming and compiler-friendly support
Advanced debug, trace, and performance monitoring
Accepts a wide range of supply voltages for internal and I/O operations.
Programmable on-chip voltage regulator (ADSP-BF523/ADSP-BF525/ADSP-BF527 processors only)
Qualified for Automotive Applications.
289-ball and 208-ball CSP_BGA packages
MEMORY
132K bytes of on-chip memory (See Table 1 on Page 3 for L1 and L3 memory size details) External memory controller with glueless support for SDRAM and asynchronous 8-bit and 16-bit memories
Flexible booting options from external flash, SPI, and TWI memory or from host devices including SPI, TWI, and UART
Code security with Lockbox Secure Technology
one-time-programmable (OTP) memory
Memory management unit providing memory protection
PERIPHERALS
USB 2.0 high speed on-the-go (OTG) with integrated PHY
IEEE 802.3-compliant 10/100 Ethernet MAC
Parallel peripheral interface (PPI), supporting ITU-R 656 video data formats
Host DMA port (HOSTDP)
2 dual-channel, full-duplex synchronous serial ports (SPORTs), supporting eight stereo I2S channels
12 peripheral DMAs, 2 mastered by the Ethernet MAC
2 memory-to-memory DMAs with external request lines
Event handler with 54 interrupt inputs
Serial peripheral interface (SPI) compatible port
2 UARTs with IrDA support
2-wire interface (TWI) controller
Eight 32-bit timers/counters with PWM support
32-bit up/down counter with rotary support
Real-time clock (RTC) and watchdog timer
32-bit core timer
48 general-purpose I/Os (GPIOs), with programmable hysteresis
NAND flash controller (NFC)
Debug/JTAG interface
On-chip PLL capable of frequency multiplication
图1.ADSP-BF52x处理器框图
ADSP-BF527 EZ-KIT Lite评估板
Thank you for purchasing the ADSP-BF527 EZ-KIT Lite®, Analog Devices, Inc. evaluation system for the ADSP-BF523, ADSP-BF525, and ADSP-BF527 Blackfin® processors.Blackfin processors embody a new type of embedded processor designed specifically to meet the computational demands and power constraints of today’s embedded audio, video, and communications applications. They deliver breakthrough signal-processing performance and power efficiency within a reduced instruction set computing (RISC) programming model.
Blackfin processors support a media instruction set computing (MISC) architecture. This architecture is the natural merging of RISC, media functions, and digital signal processing (DSP) characteristics. Blackfin pro电感器的测量cessors deliver signal-processing performance in a microprocessor-like environment.
Based on the Micro Signal Architecture (MSA), Blackfin processors combine a 32-bit RISC instruction set, dual 16-bit multiply accumulate (MAC) DSP functionality, and eight-bit video processing performance that had previously been the exclusive domain of very-long instruction word (VLIW) media processors.
The evaluation board is designed to片式电感器 be used in conjunction with the VisualDSP++® development environment to test capabilities of the
boost电路 新人一枚，第一次自己做boost电路，结果却不怎么正确，
输入是9~15V，输出24V，输出电流大于1A，
测试结果却是不到20V，效率也很低，
下面是电感的波形，电路也在下面，求助各位高手 AKMAK7782双路音频信号处理解决方案AKM 公司的AK7782是集成24位5路ADC和SRC的双路音频信号处理器(DSP),同时还集成了8:2立体声输入选择器,取样速率转换器,速率高达96kHz,ADC取样频率从7.35kHz 到96k 一种雷达防追尾预警系统工作原理 追尾碰撞是目前我国高速公路各类事故中较多的一类事故，占事故总数的33%左右。根据对沈大、合宁、广深、西临等高速公路交通事故的统计分析，交通事故类型如表1所示。有关研究表明，若驾驶员能够提早1 秒意识
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