年份1960AT&T introduced the dataphone and the first known MODEM.AT&T推出了数据电话和第一个已知的调制解调器。1961Leonard Kleinrock published his first paper entitled "Information Flow in Large Communication Nets" was published on May 31, 1…
年份1981The first motherboard, originally called a "planar," was used in the IBM Personal Computer.最初称为“平面”的第一块主板用于IBM个人电脑。1984The AT, or Full AT, motherboard form factor was introduced by IBM in August 1984.AT或Full-AT主板外…
年份1961The idea of ARPANET, one of the earliest computer networks, was proposed by Leonard Kleinrock in 1961, in his paper titled "Information Flow in Large Communication Nets."ARPANET是最早的计算机网络之一,1961年由Leonard Kleinrock在…
AE:auto exposure,自动曝光 AF:auto focus 自动对焦 BAM:bus access manager BOM:bill of materials,物料清单,是描述企业产品组成的技术文件。 bps:bits per second BSI:backs…
2.数据接口: MAC->PHY TX_ER TX_EN TXD<0...3> PHY->MAC TX_CLK RX_CLK RX_EN RX_DV RXD<0...3> CRS COL 管理接口SMI:MAC->PHY MDC 双向数据线 MDIO 3. RX_CLK TO MAC TX_CLK TO MAC X1 TO PHY CLK_OUT system clock MDC…
SILERGY(矽力杰)功率电子开关 SY6280AAC Low Loss Power Distribution Switch SOT-5 Pacakge 2.4V ~ 5.5V (<6V) 0.6W Max. Current 2A Reverse blocking (no body diode) Programmable current limit ( Ilimits(A) 6800 / Rset(ohm). )
Application Circuit (Reco…
(图片来源:连接应变计和分流电阻至NI-9237 - National Instruments)
分流校准(ShuntCalibration)的原理大致如下,接入一个分流电阻Rs到电桥的一个脚上,利用其分流的作用,可以改变AI和AI-两端电压差(即电桥…
第二代硬件选型 文章目录 第二代硬件选型项目介绍重新换平台缘由X86 && Arm 架构切换 ARM Linux 硬件选型系统确定Qt 版本确定总结一下 关键字:
Qt、
Qml、
Arm、
X86、
linux 项目介绍 欢迎来到我们的 QML & C 项目!这个项目结合了 QM…
年份1837Charles Babbage designed the first mechanical printer in the 1800s, for use with the Difference Engine that he also developed in 1822.查尔斯巴贝奇(Charles Babbage)在19世纪设计了第一台机械打印机,用于他在1822年开发的差…
BMA220,IIC读写的一个坑
说明书上写: The default slave address assigned to the BMA220 is 000 1011. When in IC mode, the LSB can be inverted by tying the CSB pin to ‘1’. This allows resolving conflicts with existing devices.按照说明书上的意思&am…