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verilog 中$ signed 函数， verilog 中的带符号数计算

SystemVerilog 设计及建模，建议和绿皮 SystemVerilog 验证 一书搭配食用

W5500 是一款全硬件 TCP/IP 嵌入式以太网控制器，为嵌入式系统提供了更加简易的互联网连接方 案。 W5500 集成了 TCP/IP 协议栈， 10/100M 以太网数据链路层（MAC） 及物理层（PHY），使得 用户使用单芯片就能够在他们的应用中拓展网络连接。

Altera’s MAX® 10 FPGAs revolutionize non-volatile integration by delivering advanced processing capabilities in a low-cost, single chip small form factor programmable logic device. Building upon the single chip heritage of previous MAX device families, densities range from 2K – 50KLE, using either single or dual power supplies. The MAX 10 FPGA family encompasses both small packaging and high I/O pin count packages.

This reference manual targets application developers. It provides complete information on how to use the STM32L151xx, STM32L152xx and STM32L162xx and STM32L100xx microcontroller memory and peripherals. The STM32L151xx, STM32L152xx and STM32L162xx and STM32L100xx value line will be referred to as STM32L1xxxx throughout the document, unless otherwise specified. The STM32L1xxxx is a family of microcontrollers with different memory sizes, packages and peripherals. For ordering information, mechanical and electrical device characteristics please refer to the corresponding datasheets. For information on programming, erasing and protection of the internal non volatile memory please refer to Section 3: Flash program memory and data EEPROM (FLASH). For information on the ARM® Cortex®-M3 core, please refer to the Cortex®-M3 Technical Reference Manual.

Ultra-low-power platform Core: ARM® Cortex®-M3 32-bit CPU Reset and supply management Clock sources Pre-programmed bootloader Development support Up to 83 fast I/Os (73 I/Os 5V tolerant), all mappable on 16 external interrupt vectors

• 125 Msps Sample Rate Msps analog-to-digital converter (ADC). To provide a • High SNR: 71.2 dBFS at 100-MHz fIN complete converter solution, it includes a • High SFDR: 82 dBc at 100-MHz fIN and internal reference. Designed for applications • 2.3-VPP Differential Input Voltage demanding the highest speed and highest dynamic • Internal Voltage Reference performance in little space, the ADS5500 has • 3.3-V Single-Supply Voltage single-supply voltage. This allows an even higher • Analog Power Dissipation: 578 mW system integration density. The provided internal • Serial Programming Interface reference simplifies system design requirements. • TQFP-64 PowerPAD™ Package • Recommended Amplifiers: he ADS5500 is a high-performance, 14-bit, 125high-bandwidth linear sample-and-hold stage (S&H)excellent power consumption of 578 mW at 3.3-V Parallel CMOS-compatible output ensures seamlessinterfacing with common logic.OPA695, OPA847, THS3201, THS3202, The ADS5500 is available in a 64-pin TQFP PowerPAD™ package and in both a commercial and THS4503, THS4509, THS9001 industrial temperature grade device

Core: ARM® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 168 MHz, memory protection unit, 210 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions

The W5500 chip is a Hardwired TCP/IP embedded Ethernet controller that provides easier Internet connection to embedded systems. W5500 enables users to have the Internet connectivity in their applications just by using the single chip in which TCP/IP stack, 10/100 Ethernet MAC and PHY embedded. WIZnet‘s Hardwired TCP/IP is the market-proven technology that supports TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE protocols. W5500 embeds the 32Kbyte internal memory buffer for the Ethernet packet processing. If you use W5500, you can implement the Ethernet application just by adding the simple socket program. It’s faster and easier way rather than using any other Embedded Ethernet solution. Users can use 8 independent hardware sockets simultaneously. SPI (Serial Peripheral Interface) is provided for easy integration with the external MCU. The W5500’s SPI supports 80 MHz speed and new efficient SPI protocol for the high speed network communication. In order to reduce power consumption of the system, W5500 provides WOL (Wake on LAN) and power down mode.

包括1.基于TOP258YN的开关电源总结报告和资料 2.开关电源入门 中文 3.开关电源技术 4.电力电子系统中的电磁兼容

一 判别函数 二线性判别函数 三 广义线性判别函数 四 线性判别函数的几何性质

数据库原理及应用。陕西科技大学电信学院的数据库，软件开发SQL

stm32f1xx官方库帮助手册.STM32F10x Standard Peripherals Library .The STM32F10x Standard Peripherals Library is a complete package, consisting of device drivers for all of the standard device peripherals, for STM32 Value line(High, Medium and Low), Connectivity line, XL-, High-, Medium- and Low- Density Devices 32-bit Flash microcontrollers. This library is a firmware package which contains a collection of routines, data structures and macros covering the features of STM32 peripherals. It includes a description of the device drivers plus a set of examples for each peripheral. The firmware library allows any device to be used in the user application without the need for in-depth study of each peripheral’s specifications.