SSCOM32使用說明： 將用戶程序通過串口的方式下載到ATT7025/7027中。 使用步驟： （1）選擇通訊口，然后打開串口，如下圖所示 （2）將DTR打勾，DTR對應(yīng)芯片的TMS1腳，也就是說通過將DTR打勾將TMS1拉為低電平 （3）將RTS打勾，然后將勾取消，RTS對應(yīng)芯片的外部復(fù)位引腳，通過將RTS打勾將芯片外部復(fù)位引腳拉低，使芯片處于復(fù)位狀態(tài)，然后將RTS拉高，使得芯片完成復(fù)位。 （4）將鼠標(biāo)移動到上面的大文本框，點(diǎn)擊回車按鍵，然后可以看到有返回信號，如下圖所示： （5）從鍵盤輸入 “M0000” ，會有如下返回信號，如下圖所示，通過這個命令將芯片內(nèi)的24Kflash擦除 （6）從鍵盤輸入 “M8000” ，會有如下返回信號，如下圖所示，通過這個命令將芯片內(nèi)的8Kflash擦除 （7）從鍵盤輸入 “E”,如下所示： 說明：鍵入“E”后，不再顯示隨后鍵入的字符，但所鍵入字符可通過串口訪問芯片。 （8）從鍵盤輸入 “L”,此時不會再看到返回字符，然后點(diǎn)擊打開文件，選擇用戶需要下載的hex文件 說明：鍵入“L”是Load命令，此時可以打開一個hex文件進(jìn)行寫Flash操作。 （9）點(diǎn)擊發(fā)送文件，如下圖所示： （10）當(dāng)正確傳輸完成時，如下圖所示： 上圖中的情況說明程序下載正確。 （11）將DTR的勾取消，也就是說將芯片的TMS1拉高，將芯片切換到normal模式，將RTS拉低再拉高，也就是說將芯片復(fù)位一次，此時芯片內(nèi)的程序就開始正常運(yùn)行了。 軟件標(biāo)簽: 串口調(diào)試 軟件截圖 親 如果您覺得西西能給您帶來幫助請幫西西給個好評下謝謝 ：）
標(biāo)簽： sscom32免注冊版本
上傳時間： 2016-09-22
上傳用戶：wangliya888
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標(biāo)簽： 源代碼
上傳時間： 2017-11-17
上傳用戶：wendingchang
使用matlab實(shí)現(xiàn)gibbs抽樣，MCMC: The Gibbs Sampler 多元高斯分布的邊緣概率和條件概率 Marginal and conditional distributions of multivariate normal distribution
上傳時間： 2019-12-10
上傳用戶：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.
標(biāo)簽： Telecommunications Processing Signal for
上傳時間： 2020-06-01
上傳用戶：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.
標(biāo)簽： Performance Measurement Practical Guide UMTS
上傳時間： 2020-06-01
上傳用戶：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.
標(biāo)簽： Integrated Circuits Silicon ESD In
上傳時間： 2020-06-05
上傳用戶：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
上傳時間： 2020-06-07
上傳用戶：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
標(biāo)簽： pw2601
上傳時間： 2022-02-11
上傳用戶：
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.
標(biāo)簽： tof
上傳時間： 2022-02-12
上傳用戶：
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
標(biāo)簽： pw1555
上傳時間： 2022-02-14
上傳用戶：
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