SAMPLES
478
QFN/04+
只做原装,也只有原装
SAMPLES
50000
QFN/23+ROHS
原装,原厂渠道,十年BOM配单专家
SAMPLES
3728
NA//23+
原装现货,当天可交货,原型号开票
SAMPLES
138000
QFN/23+
全新原装现货,价格优势,供应中欢迎咨询
SAMPLES
62500
QFN/-
原装最低价,认准华盛锦
SAMPLES
5270
QFN/21+
-
SAMPLES
65428
QFN/22+
只做现货,一站式配单
SAMPLES
22558
QFN/1906+
原装正品-正规渠道-增值税票
SAMPLES
100000
QFN/04+
优势好价 靠谱原装 终端优选供应商
SAMPLES
168000
QFN/23+
全新原装现货/实单价格支持/优势渠道
SAMPLES
521010
NR/2017+
-
SAMPLES
65286
-/21+
全新原装现货,长期供应,免费送样
SAMPLES
1478
QFN/24+
原厂原装现货
SAMPLES
53800
QFN/19+NA
公司原装现货 可开13%增值税
SAMPLES
8913
QFN/23+
柒号芯城,离原厂的距离只有0.07公分
SAMPLES
20000
N/A/2024
上海原装现货库存,欢迎查询
SAMPLES
60
QFN/21+
原装现货
SAMPLES
3588
-/-
原装 部分现货量大期货
SAMPLES
128000
QFN/23+
全新原装现货/优势渠道/提供一站式配单
SAMPLES
41101
QFN/-
大量现货,提供一站式配单服务
block diagrams - dvd player - digital video recorder - personal digital assistant (pda) - more block diagrams customer tags - what's this? no tags are available for this part number pricing/packaging/cad design tools/samples price packaging cad design tools samples device status temp (oc) budget price($us) | qty industry standard(ti pkg) | pins top side marking standard pack quantity | package carrier symbols footprints samples ina163ua active -
mlnlmum value:指定输出下限值。 input terminal configuration:指定端子类型。default为默认类型,differential为差分模式,nrse为单端无参考地模式,pseudodifferential为伪差分模式,rse为单端参考地模式。 task out:输出任务标识。 · 第2步:添加daqmx timing.vi,在其下拉菜单中选择sample clock配置采样参数。rate指定每个通道的采样率;contirnuous samples指定采样类型为连续采样;samplesper channel指定连续采样时缓冲区间大小。程序框图如图3所示。 如图3 添加daqmx timing vi daqmx timing.vi 下拉菜单有5种类型:采样时钟(aamp1e c1ock)、握手时钟(handshaking)不指定时钟(imp1icit)、波形时钟(usewaveform)、时钟检测方式(change detection)。sample clock图标和接线端如图4所示。输入接线端和输出接线端说明如下。
由公式(2)知,fir型滤波器的主要数学运算是将每个采样输入与常数相乘,然后将每个乘积累加,共进行n次,可以用如下c语言程序段来说明: y[n]=0; for(i=0;i小于n;i++) y[n]+=x[i]*b[i] 对带乘法器单元的微处理器,可以根据以下伪码来实现: move ptr0, #x ;primary data pointer -> samples move ptr1, #b ;secondary dp -> coefficients move ctr, #n ;loop counter gets number of samples move result, #0 ;clear result register acc_loop: move acc, @ptr0 ;get a sample
ewfile,newfilesize,4);设置文件大小 sspec_addxmemfile(”/databmp”,newfile,serve_rhttp);嵌入http服务器 4 http服务器的实现 通过基于rabbit3ooo的模块实现http服务器并不难,只需使用网页设计软件如dreamwave、frontpage等,设计一个网页,然后导出到rabbit3ooo模块的http服务器中即可。设网页文件名为index.html,网页中含有图片ledon.gif,存放的目录是samples/rcm32oo/pages,使用以下指令将文件导出到http服务器中。#ximport”samples/rcm32oo/pages/index.shtml" index html#ximport”samples/rcm32oo,pages/ledon.gif"ledon_gif 此外还需声明http服务器中的文件类型httptype http_types[]及设置http服务器可访问文件、变量、函数的结构类型httpspec http_flashspec[]。 主程序中运行
up to 16-bit resolution and the system developer can perform "on-the- fly" frequency changes. the six 16 khz pwm output channels drive four input channels for simultaneously-sampled 10-bit adcs of bus current, bus voltage, demand pot, phase voltage samples (synchronized to the pwm module), and three timers. the six-channel pwm register drives the bldc motor. in this hardware block diagram of a sensorless bldc motor control circuit, a 10-bit adc monitors the back emf of the bldc motor. the ad
恩智浦半导体(nxp semiconductors,由飞利浦创建的独立半导体公司)与台湾积体电路制造股份有限公司(台积电)9日宣布,双方合作推出业界第一个符合全球规格的45纳米单晶片液晶电视平台——tv550。目前恩智浦半导体已经将工程样品(engineering samples)交予其主要客户。 恩智浦半导体的 tv550 数字电视平台,内建pnx85500 处理器,并采用台积电45纳米低耗电制程技术生产,目前已经是一项生产就绪(production-ready)的设计,不但可以加速数字电视系统产品的上市时间,并能经由其完整的功能整合来降低系统成本。此一崭新的数字电视平台能让电视观众以前所未有的画面品质享受高画质数字内容及网络服务。恩智浦半导体与台积电的长期伙伴关系与合作是此一平台能顺利问世的关键,藉由先进的psp电晶体模拟软体,台积电能够及早提供晶片测试结果,并获得准确的电晶体模拟效能。 由于台积电于2007年领先推出45纳米制程技术,恩智浦半导体主动与台积电合作,使得此一数字电视平台能在最快时间内上市。恩智浦半导体选择台积电45纳米低耗电制程,是着眼于许多优异的功能表现,譬如具
供以下信息,它们会对你拿到好的价格,好的服务有非常大的帮助。 基本信息(bom): brand:品牌 manufacture pn:原厂编号 description:物料描述 spec.:物料特性及指标 qty per unit:单机用量 which components could be substituted:允许替代的物料 重要信息: project name:项目名称 appliance:产品应用 qty(include samples qty ; orders qty ; forecast qty): 用量(包括样品用量,订单用量,预计用量) end customer:最终用户 end country:最终使用地点(国家) design location:设计方(国家,公司) purchase schedule:采购计划 其他信息: appliance environment:产品应用环境 delivery location:交货地点(大陆某地或香港) payment items:付款
cts, household appliances and industrial systems traditionally controlled by 8bit mcus have grown increasingly sophisticated, making higher performance levels, lower power consumption and competitive pricing of greater concern to manufacturers. samples of the 16bit series are expected to be available starting in april 2006 with volume production scheduled to begin in october 2006. pricing for the 100-pin 78k0r/kg3 mcu with 256kbytes of memory is $5 in 1,000-lot orders. combined volume production f
et弄了一周也没效果,郁闷了,感谢那位达人,帮我看看;************************************************************************; msp430f149.html">msp430f149 demo – spi communication with tlc3544/48 or tlc3574/78 evm; program implements a digital filter – takes the average of 4 samples.html">samples; from ch0 of the adc and returns them to the tlv5636 dac; tlv3574/8 msp430f149.html">msp430f149; ------------- -------------; | sdi|<---|p3.1 |; | sdo|--->|p3.2 |; ch0~~~>|in+ sclk|<---|p3.3 |; | /cs|<---|p3.5 |; | fs|&l
xqfft.h"#include <intrinsics.h>// define statements ----------------------------#define nop __no_operation()/* * windowing: uncomment one of the following define * statements to enable the corresponding windowing * function on input samples.html">samples. comment all to disable * windowing. *///#define windowing_hamming//#define windowing_hann/* * x_n_re * * this array will store the fft input samples.html">samples, x(n), * and the real part of the spectrum, x(n). */__no_init int x_n
e for arm - version 2.41[device support] added: support for philips lpc2101, lpc2102, and lpc2103. added: enhanced support for analog devices aduc7000 series. added: device support for atmel at91sam7a3. added: several example projects (including usb samples in the folder boards\atmel\at91sam7s\usb) for atmel at91sam7 devices. added: several example projects (including usb samples in the folder boards\hitex\str7\usb) for st microelectronics str7 devices. [carm compiler] corrected: a problem with paramet
t transitions positive + 300 mv (+/- 6 mv), holds for a specified period and then returns to zero or black level. the display system "looks" for the zero crossing of the sync pulse. each half of the tri-level sync pulse is defined to be 44 samples (reference clock periods) wide, for a total sync pulse width of 88 samples. the rise time is defined to be four samples wide +/- 1.5 samples. this symmetry of design results in a net dc value of zero volts. this is one major advantage of tri-level s
关闭时钟切换,时钟丢失监测,使用外部振荡器 config __fwdt, wdt_off ; 关闭看门狗 config __fborpor, pbor_on & borv_27 & pwrt_16 & mclr_en ; 设置bor电压, bor延时16ms config __fgs, code_prot_off ; 关闭代码保护 .equ samples, 64 ;采样次数 .equ ee_addr, 0x7ff010 .equ ee_data, 0x800; ******************************* 全局申明: ********************************************** .global _wreg_init ; 令"_wreg_init"例程为全局属性以便在c程序里调用该例程