SSCOM32使用说明： 将用户程序通过串口的方式下载到ATT7025/7027中。 使用步骤： （1）选择通讯口，然后打开串口，如下图所示 （2）将DTR打勾，DTR对应芯片的TMS1脚，也就是说通过将DTR打勾将TMS1拉为低电平 （3）将RTS打勾，然后将勾取消，RTS对应芯片的外部复位引脚，通过将RTS打勾将芯片外部复位引脚拉低，使芯片处于复位状态，然后将RTS拉高，使得芯片完成复位。 （4）将鼠标移动到上面的大文本框，点击回车按键，然后可以看到有返回信号，如下图所示： （5）从键盘输入 “M0000” ，会有如下返回信号，如下图所示，通过这个命令将芯片内的24Kflash擦除 （6）从键盘输入 “M8000” ，会有如下返回信号，如下图所示，通过这个命令将芯片内的8Kflash擦除 （7）从键盘输入 “E”,如下所示： 说明：键入“E”后，不再显示随后键入的字符，但所键入字符可通过串口访问芯片。 （8）从键盘输入 “L”,此时不会再看到返回字符，然后点击打开文件，选择用户需要下载的hex文件 说明：键入“L”是Load命令，此时可以打开一个hex文件进行写Flash操作。 （9）点击发送文件，如下图所示： （10）当正确传输完成时，如下图所示： 上图中的情况说明程序下载正确。 （11）将DTR的勾取消，也就是说将芯片的TMS1拉高，将芯片切换到Normal模式，将RTS拉低再拉高，也就是说将芯片复位一次，此时芯片内的程序就开始正常运行了。 软件标签: 串口调试 软件截图 亲 如果您觉得西西能给您带来帮助请帮西西给个好评下谢谢 ：）
标签： sscom32免注册版本
上传时间： 2016-09-22
上传用户：wangliya888
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标签： 源代码
上传时间： 2017-11-17
上传用户：wendingchang
使用matlab实现gibbs抽样，MCMC: The Gibbs Sampler 多元高斯分布的边缘概率和条件概率 Marginal and conditional distributions of multivariate Normal distribution
上传时间： 2019-12-10
上传用户：real_
This paper presents a Hidden Markov Model (HMM)-based speech enhancement method, aiming at reducing non-stationary noise from speech signals. The system is based on the assumption that the speech and the noise are additive and uncorrelated. Cepstral features are used to extract statistical information from both the speech and the noise. A-priori statistical information is collected from long training sequences into ergodic hidden Markov models. Given the ergodic models for the speech and the noise, a compensated speech-noise model is created by means of parallel model combination, using a log-Normal approximation. During the compensation, the mean of every mixture in the speech and noise model is stored. The stored means are then used in the enhancement process to create the most likely speech and noise power spectral distributions using the forward algorithm combined with mixture probability. The distributions are used to generate a Wiener filter for every observation. The paper includes a performance evaluation of the speech enhancer for stationary as well as non-stationary noise environment.
标签： Telecommunications Processing Signal for
上传时间： 2020-06-01
上传用户：shancjb
Having dealt with in-depth analysis of SS#7, GSM and GPRS networks I started to monitor UTRAN interfaces approximately four years ago. Monitoring interfaces means decoding the data captured on the links and analysing how the different data segments and messages are related to each other. In general I wanted to trace all messages belonging to a single call to prove if the network elements and protocol entities involved worked fine or if there had been failures or if any kind of suspicious events had influenced the Normal call proceeding or the call’s quality of service. Cases showing Normal network behaviour have been documented in Kreher and Ruedebusch (UMTS Signaling. John Wiley & Sons, Ltd, 2005), which provides examples for technical experts investigating call flows and network procedures.
标签： Performance Measurement Practical Guide UMTS
上传时间： 2020-06-01
上传用户：shancjb
In the seven years since the first edition of this book was completed, Electrostatic Discharge (ESD) phenomena in integrated circuits (IC) continues to be important as technologies shrink and the speed and size of the chips increases. The phenom- ena related to ESD events in semiconductor devices take place outside the realm of Normal device operation. Hence, the physics governing this behavior are not typ- ically found in general textbooks on semiconductors.
标签： Integrated Circuits Silicon ESD In
上传时间： 2020-06-05
上传用户：shancjb
n present power system, the engineers face variety of challenges in planning, construction and operation. In some of the problems, the engineers need to use managerial talents. In system design or upgrading the entire system into automatic control instead of slow response of human operator, the engineers need to exercise more technical knowledge and experience. It is principally the engi- neer’s ability to achieve the success in all respect and provide the reliable and uninterrupted service to the customers. This chapter covers some important areas of the traditional power system that helps engineers to overcome the challenges. It emphasizes the characteristics of the various components of a power system such as generation, transmission, distribution, protection and SCADA system. During Normal operating conditions and disturbances, the acquired knowledge will pro- vide the engineers the ability to analyse the performance of the complex system and execute future improvement
上传时间： 2020-06-07
上传用户：shancjb
The PW2601 is a charger front-end integrated circuit designed to provide protection to Li-ionbatteries from failures of charging circuitry. The device monitors the input voltage, battery voltageand the charging current to make sure all three parameters are operated in Normal range. Thedevice will switch off internal MOSFET to disconnect IN to OUT to protect load when any of inputvoltage, output current exceeds the threshold. The Over temperature protection (OTP) functionmonitors chip temperature to protect the device. The PW2601 also can protect the system’sbattery from being over charged by monitors the battery voltage continuously. The deviceoperates like a linear regulator, maintaining a 5.1V output with input voltages up to the input overvoltage threshold.The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogenfree
标签： pw2601
上传时间： 2022-02-11
上传用户：
InGaAs/AlGaAs semiconductor lasers come in threetypes: VCSELs and two types of EELs. The VCSEL, asits name implies, emits vertically, Normal to the planeof the device, owing to cavity mirrors grown withinthe epitaxial material itself. The VCSEL’s circular beamhas a numerical aperture (NA) of roughly 0.2, or a fullangle of approximately 25 degrees.
标签： tof
上传时间： 2022-02-12
上传用户：
PW1555 is a programmable current limit switch with input voltage range selection and outputvoltage clamping. Extremely low RDS(ON) of the integrated protection N-channel FET helps toreduce power loss during the Normal operation. Programmable soft-start time controls the slew rateof the output voltage during the start-up time. Independent enable control allows the complicatedsystem sequencing control. It integrates the over-temperature protection shutdown andautorecovery with hystersis
标签： pw1555
上传时间： 2022-02-14
上传用户：
