void IIC_Init(void) { //由于STM8单片机，可以在输入和输出条件下读取IO口状态，故直接设置为输出。 GPIO_Init(IIC_SCL_PORT, IIC_SCL_PIN, GPIO_MODE_OUT_OD_HIZ_SLOW ); GPIO_Init(IIC_SDA_PORT, IIC_SDA_PIN, GPIO_MODE_OUT_OD_HIZ_SLOW ); IIC_SCL_H; IIC_SDA_H; } //产生IIC起始信号 void IIC_Start(void) { IIC_SDA_H; IIC_SCL_H; Delay_us(); IIC_SDA_L; //START:when CLK is high,DATA change form high to low Delay_us(); IIC_SCL_L; //钳住I2C总线，准备发送或接收数据 }
上传时间： 2018-01-10
上传用户：m009988
The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW phases are derived at the decoder using a phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions tested.
标签： frequency-domain interpolation performance Design kbit_s speech coder based and of
上传时间： 2018-04-08
上传用户：kilohorse
贴片铝电解电容封装库 SMD Aluminum Electrolytic Capacitors VE Features ‧ 3 ~ 16φ, 85℃, 2,000 hours assured ‧ Chip type large capacitance capacitors ‧ Designed for surface mounting on high density PC board. ‧ RoHS Compliance
上传时间： 2018-05-09
上传用户：angel20041401
Digital Control of High-Frequency Switched-Mode Power Converters-Wiley-IEEE Press (2015)
上传时间： 2018-09-15
上传用户：赛德克巴莱
Introduction jSMPP is a java implementation (SMPP API) of the SMPP protocol (currently supports SMPP v3.4). It provides interfaces to communicate with a Message Center or an ESME (External Short Message Entity) and is able to handle traffic of 3000-5000 messages per second. jSMPP is not a high-level library. People looking for a quick way to get started with SMPP may be better of using an abstraction layer such as the Apache Camel SMPP component: http://camel.apache.org/smpp.html Travis-CI status: History The project started on Google Code: http://code.google.com/p/jsmpp/ It was maintained by uudashr on Github until 2013. It is now a community project maintained at http://jsmpp.org Release procedure mvn deploy -DperformRelease=true -Durl=https://oss.sonatype.org/service/local/staging/deploy/maven2/ -DrepositoryId=sonatype-nexus-staging -Dgpg.passphrase=<yourpassphrase> log in here: https://oss.sonatype.org click the 'Staging Repositories' link select the repository and click close select the repository and click release License Copyright (C) 2007-2013, Nuruddin Ashr uudashr@gmail.com Copyright (C) 2012-2013, Denis Kostousov denis.kostousov@gmail.com Copyright (C) 2014, Daniel Pocock http://danielpocock.com Copyright (C) 2016, Pim Moerenhout pim.moerenhout@gmail.com This project is licensed under the Apache Software License 2.0.
上传时间： 2019-01-25
上传用户：dragon_longer
The SP2526A device is a dual +3.0V to +5.5V USB Supervisory Power Control Switch ideal for self-powered and bus-powered Universal Serial Bus (USB) applications. Each switch has low on-resistance (110mΩ typical) and can supply 500mA minimum. The fault currents are limited to 1.0A typical and the flag output pin for each switch is available to indicate fault conditions to the USB controller. The thermal shutdown feature will prevent damage to the device when subjected to excessive current loads. The undervoltage lockout feature will ensure that the device will remain off unless there is a valid input voltage present.
标签： High-Side Switch Power Dual USB
上传时间： 2019-03-06
上传用户：bhitr
The BTS5016SDA is a one channel high-side power switch in PG-TO252-5-11 package providing embedded protective functions. The power transistor is built by a N-channel vertical power MOSFET with charge pump. The design is based on Smart SIPMOS chip on chip technology. The BTS5016SDA has a current controlled input and offers a diagnostic feedback with load current sense and a defined fault signal in case of overload operation, overtemperature shutdown and/or short circuit shutdown.
上传时间： 2019-03-27
上传用户：guaixiaolong
AEC-Q100 qualified • 12 V and 24 V battery systems compliance • 3.3 V and 5 V logic compatible I/O • 8-channel configurable MOSFET pre-driver – High-side (N-channel and P-channel MOS) – Low-side (N-channel MOS) – H-bridge (up to 2 H-bridge) – Peak & Hold (2 loads) • Operating battery supply voltage 3.8 V to 36 V • Operating VDD supply voltage 4.5 V to 5.5 V • All device pins, except the ground pins, withstand at least 40 V • Programmable gate charge/discharge currents for improving EMI behavior
标签： configurable Automotive pre-driver suitable channel systems MOSFET fully High side
上传时间： 2019-03-27
上传用户：guaixiaolong
Description The L9352B is an integrated quad low-side power switch to drive inductive loads like valves used in ABS systems. Two of the four channels are current regulators with current range from 0 mA to 2.25 A. All channels are protected against fail functions. They are monitored by a status output.
标签： L9352B
上传时间： 2019-03-27
上传用户：guaixiaolong
Reconstruction- and example-based super-resolution (SR) methods are promising for restoring a high-resolution (HR) image from low-resolution (LR) image(s). Under large magnification, reconstruction-based methods usually fail to hallucinate visual details while example-based methods sometimes introduce unexpected details. Given a generic LR image, to reconstruct a photo-realistic SR image and to suppress artifacts in the reconstructed SR image, we introduce a multi-scale dictionary to a novel SR method that simultaneously integrates local and non-local priors. The local prior suppresses artifacts by using steering kernel regression to predict the target pixel from a small local area. The non-local prior enriches visual details by taking a weighted average of a large neighborhood as an estimate of the target pixel. Essentially, these two priors are complementary to each other. Experimental results demonstrate that the proposed method can produce high quality SR recovery both quantitatively and perceptually.
标签： Super-resolution Multi-scale Dictionary Single Image for
上传时间： 2019-03-28
上传用户：fullout
