這個我花了5個資源分下載的，看到里面的功能非常全分享給和我一樣的新手學(xué)習(xí)，本套源碼是利用ADO接口訪問mysql數(shù)據(jù)庫，代碼注釋清晰值得學(xué)習(xí)
上傳時間： 2013-07-22
上傳用戶：KSLYZ
mcu與cpld之間spi接口程序，mcu為master，cpld用verilog寫成slave模塊
上傳時間： 2013-08-14
上傳用戶：1039312764
本光盤里各版本監(jiān)控軟件是針對不同機(jī)型所設(shè)計的，請您確認(rèn)自己所購機(jī)型后，選擇 對應(yīng)的程序安裝。 1、EAST產(chǎn)品：EA620H（EA620S）、EA630H（EA630S）、EA800全系列、Master全系列、 STX全系列、RT全系列機(jī)器均選用UPSilon2000軟件。雙擊圖標(biāo)后，選擇適合自己的操作系 統(tǒng)進(jìn)行相應(yīng)安裝設(shè)置。 2、EA610H(EA610S)及其它型號UPS請選用Rups2000軟件進(jìn)行安裝。 謝謝您的支持！祝您工作愉快！
標(biāo)簽： ups 監(jiān)控軟件
上傳時間： 2013-11-21
上傳用戶：xywhw1
為解決電致變色器件的顏色變化受外界環(huán)境顏色控制的問題，設(shè)計了一種基于單片機(jī)的便攜式顏色自適應(yīng)識別電路。與傳統(tǒng)顏色識別電路相比較，該電路利用數(shù)字式的顏色傳感器來獲取外界環(huán)境顏色，產(chǎn)生的數(shù)字顏色信號易于單片機(jī)進(jìn)行處理。在電路中，下位機(jī)部分主要負(fù)責(zé)獲取電致變色器件變色參數(shù)及控制電致變色器件的顏色變化;而上位機(jī)部分主要負(fù)責(zé)把下位機(jī)獲取的電致變色器件變色參數(shù)進(jìn)行電壓到顏色的曲線擬合，并通過藍(lán)牙通信把擬合曲線參數(shù)傳遞給下位機(jī)。結(jié)果表明，該電路能自動根據(jù)環(huán)境顏色提供-4~4 V范圍步進(jìn)為0.1 V的電壓來驅(qū)動電致變色器件的顏色顯示，與傳統(tǒng)的顏色識別電路設(shè)計相比，識別的精度和速度都得到了明顯改善。 Abstract: In this paper， a portable adaptive circuit for color identification(PACCI) based on MCU was designed. Compared to the traditional color identification circuit， the PACCI adopts digital sensor to detect the color data from external environment and further generate digital color data， which can be processed easily by MCU. In PACCI， the slave is mainly responsible for detecting the color parameters of the corresponding elcreochromic device and further driving it. For the master， which is mainly responsible for the color curve fitting based on the parameters of the electrochromic device， and transmits the fitting parameters to the slave through the bluetooth device. The results show that the PACCI can provide the basis voltage range from -4V to 4V automatically based on the colors of external environment with step as 0.1V to drive the corresponding electrochromic device. Compared to the traditional color recognition circuit， the recognition accuracy and speed of PACCI have been improved significantly.
上傳時間： 2013-11-09
上傳用戶：franktu
闡述了一個由上位PC機(jī)和AT89C52下位單片機(jī)組成的主從分布式溫度巡回檢測系統(tǒng)。主從機(jī)采用RS-485 串行通訊標(biāo)準(zhǔn)進(jìn)行通信，可在下位單片機(jī)實(shí)現(xiàn)基本的溫度數(shù)據(jù)巡回檢測基礎(chǔ)上，由上位PC機(jī)實(shí)現(xiàn)綜合處理功能或擴(kuò)展為遠(yuǎn)程操作。整個系統(tǒng)具有巡檢速度快，擴(kuò)展性好的特點(diǎn)。 Abstract: In this paper,a top PC and AT89C52 under-bit microcontrollers from the main component of the tour distributed temperature detection system is presented. Master and slave can use RS-485 serial communication standards for communications.Based on next-bit machine for basic goods temperature detected data Tour, the top can achieve the integrated treatment of PC functions or for the expansion of long-distance operation. The entire inspection system is fast, expansion.
上傳時間： 2013-10-13
上傳用戶：zhoujunzhen
The Controller Area Network (CAN) is a serial, asynchronous, multi-master communication protocol forconnecting electronic control modules, sensors and actuators in automotive and industrial applications.With the SJA1000, Philips Semiconductors provides a stand-alone CAN controller which is more than a simpleeplacement of the PCA82C200.Attractive features are implemented for a wide range of applications, supporting system optimization, diagnosisand maintenance.
標(biāo)簽： Stand-alone contro 1000 SJA
上傳時間： 2013-11-18
上傳用戶：yxgi5
The PCA9544A provides 4 interrupt inputs, one for each channeland one open drain interrupt output. When an interrupt is generated byany device, it will be detected by the PCA9544A and the interruptoutput will be driven LOW. The channel need not be active fordetection of the interrupt. A bit is also set in the control byte.Bits 4 – 7 of the control byte correspond to channels 0 – 3 of thePCA9544A, respectively. Therefore, if an interrupt is generated byany device connected to channel 2, the state of the interrupt inputs isloaded into the control register when a read is accomplished.Likewise, an interrupt on any device connected to channel 0 wouldcause bit 4 of the control register to be set on the read. The mastercan then address the PCA9544A and read the contents of thecontrol byte to determine which channel contains the devicegenerating the interrupt. The master can then reconfigure thePCA9544A to select this channel, and locate the device generatingthe interrupt and clear it. The interrupt clears when the deviceoriginating the interrupt clears.
標(biāo)簽： 4channel multiple 9544A 9544
上傳時間： 2014-12-28
上傳用戶：潛水的三貢
The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvementsinclude higher drive capability, 5 V I/O tolerance, lower supply current, individual I/Oconfiguration, and smaller packaging. I/O expanders provide a simple solution whenadditional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.The PCA9555 consists of two 8-bit Configuration (Input or Output selection); Input, Outputand Polarity Inversion (active HIGH or active LOW operation) registers. The systemmaster can enable the I/Os as either inputs or outputs by writing to the I/O configurationbits. The data for each Input or Output is kept in the corresponding Input or Outputregister. The polarity of the read register can be inverted with the Polarity Inversionregister. All registers can be read by the system master. Although pin-to-pin and I2C-busaddress compatible with the PCF8575, software changes are required due to theenhancements, and are discussed in Application Note AN469.
上傳時間： 2013-11-13
上傳用戶：fredguo
The PCA9547 is an octal bidirectional translating multiplexer controlled by the I2C-bus.The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Only oneSCx/SDx channel can be selected at a time, determined by the contents of theprogrammable control register. The device powers up with Channel 0 connected, allowingimmediate communication between the master and downstream devices on that channel.
標(biāo)簽： channel 9547 mult PCA
上傳時間： 2014-12-28
上傳用戶：270189020
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register, 8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption and a high-impedance open-drain output pin, IO0. The system master can enable the PCA9557’s I/O as either input or output by writing to the configuration register. The system master can also invert the PCA9557 inputs by writing to the active HIGH polarity inversion register. Finally, the system master can reset the PCA9557 in the event of a time-out by asserting a LOW in the reset input. The power-on reset puts the registers in their default state and initializes the I2C-bus/SMBus state machine. The RESET pin causes the same reset/initialization to occur without de-powering the part.
標(biāo)簽： C-bus SMBus reset port
上傳時間： 2014-01-18
上傳用戶：bs2005
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