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The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 MicrocontrollerCore. Of these, the μPSD3234A and μPSD3254A are notable for having a complete implementationof the USB hardware directly on the chip, complying with the Universal Serial Bus Specification, Revision1.1.This application note describes a demonstration program that has been written for the DK3200 hardwaredemonstration kit (incorporating a μPSD3234A device). It gives the user an idea of how simple it is to workwith the device, using the HID class as a ready-made device driver for the USB connection.IN-APPLICATION-PROGRAMMING (IAP) AND IN-SYSTEM-PROGRAMMING (ISP)Since the μPSD contains two independent Flash memory arrays, the Micro Controller Unit (MCU) can executecode from one memory while erasing and programming the other. Product firmware updates in thefield can be reliably performed over any communication channel (such as CAN, Ethernet, UART, J1850)using this unique architecture. For In-Application-Programming (IAP), all code is updated through theMCU. The main advantage for the user is that the firmware can be updated remotely. The target applicationruns and takes care on its own program code and data memory.IAP is not the only method to program the firmware in μPSD devices. They can also be programmed usingIn-System-Programming (ISP). A IEEE1149.1-compliant JTAG interface is included on the μPSD. Withthis, the entire device can be rapidly programmed while soldered to the circuit board (Main Flash memory,Secondary Boot Flash memory, the PLD, and all configuration areas). This requires no MCU participation.The MCU is completely bypassed. So, the μPSD can be programmed or reprogrammed any time, anywhere, even when completely uncommitted.Both methods take place with the device in its normal hardware environment, soldered to a printed circuitboard. The IAP method cannot be used without previous use of ISP, because IAP utilizes a small amountof resident code to receive the service commands, and to perform the Desired operations.
標(biāo)簽：
Demonstration
3200
USB
for
上傳時(shí)間：
2014-02-27
上傳用戶：zhangzhenyu
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為提升虛擬儀器傳輸速率與實(shí)時(shí)性能，擴(kuò)展監(jiān)測(cè)范圍，在VC的軟件平臺(tái)上設(shè)計(jì)了一種全功能虛擬示波器。與傳統(tǒng)虛擬示波器相比，該系統(tǒng)采用嵌入式系統(tǒng)完成信號(hào)采集，采用工業(yè)以太網(wǎng)為傳輸介質(zhì)，通過線性插值算法和多線程編程思想，實(shí)現(xiàn)波形顯示、參數(shù)計(jì)算、頻譜分析以及波形存儲(chǔ)及回放功能。實(shí)驗(yàn)結(jié)果表明，該虛擬示波器可以實(shí)現(xiàn)20 kHz采樣頻率下的波形精確顯示，達(dá)到預(yù)期的各項(xiàng)指標(biāo)。
Abstract:
o enhance the transfer rate and real-time of virtual instrument performance， expand scope of monitoring， this paper uses the VCs software platform to design a fully functional virtual oscilloscope. Compared with traditional virtual oscilloscope， this system adopts the embedded system to complete the data acquisition， industrial Ethernet as the transmission medium used by the linear interpolation algorithm and multi-threaded programming ideas， namely to achieve waveform display， parameter calculation， spectrum analysis and waveform storage and playback. Experimental results show that the virtual oscilloscope can accurately display the waveform with 20kHz sampling frequency， and achieve the Desired targets.
標(biāo)簽：
以太網(wǎng)
虛擬
波器設(shè)計(jì)
上傳時(shí)間：
2013-11-25
上傳用戶：wbwyl
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Abstract: This application note helps system designers choose the correct external components for use with the MAX16948 dualremote antenna LDO/switch, thus ensuring that automobile-regulated phantom antenna supply and output-current-monitoring circuitrymeet performance objectives. An electronic calculator is provided that helps specify the critical external components for theMAX16948, thus reducing design time. The calculator also determines the device's analog output voltage, output current-limitthreshold, and output current-sensing accuracies. The calculator includes new automatic Step By Step feature that assists designerswith component choice. To use the new automatic feature, click on the Step By Step button relative to the Desired section.
標(biāo)簽：
16948
MAX
LDO
遙控天線
上傳時(shí)間：
2013-11-04
上傳用戶：lhll918
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Today in many applications such as network switches, routers, multi-computers,and processor-memory interfaces, the ability to integrate hundreds of multi-gigabit I/Os is Desired to make better use of the rapidly advancing IC technology.
標(biāo)簽：
時(shí)鐘恢復(fù)
英文
上傳時(shí)間：
2013-10-30
上傳用戶：ysjing
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Displaying a large bitmap file on a dialog box, in its original size, is quite difficult in the VC++ environment. However, it is possible to display a large bitmap to a predefined area of the dialog by using the StretchBlt( ) function.The major disadvantage of this is that the clarity of the image will be lost. Check out this article for displaying large bitmaps into the Desired area of your dialog box in its original size with a scrolling technique used to show the entire bitmap. 滾動(dòng)顯示位圖 在VC++環(huán)境下，在一個(gè)對(duì)話框中顯示一個(gè)原始尺寸的大小的位圖文件相當(dāng)是困難的。然而,通過使用 StretchBlt()函數(shù)一個(gè)給定的區(qū)域顯示一個(gè)大的位圖是可能的。主要的缺點(diǎn)是圖像將會(huì)失真。看了這篇通過卷動(dòng)技術(shù)顯示整個(gè)位圖技術(shù)的文章，你將能夠以它的原始尺寸在給定對(duì)話框的區(qū)域內(nèi)顯示一個(gè)大位圖。 來源: http://www.codeguru.com/bitmap/ScrollBitmap.html
標(biāo)簽：
Displaying
difficult
original
bitmap
上傳時(shí)間：
2014-01-05
上傳用戶：yiwen213
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* This function positions the cursor at the specified * x,y coordinate. It uses the ANSI standard ESCAPE * * sequence to produce the Desired effect. Its not the * * fastest way to position the cursor, but perhaps the * * most portable. *
標(biāo)簽：
the
coordinate
positions
specified
上傳時(shí)間：
2015-02-24
上傳用戶：chenjjer
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Client/Server版本 DBISAM compiles directly into your application with no external libraries required. Runtime package support is also provided if so Desired. It has a very small footprint and does not require any forms support in Delphi 6, C++Builder 6, and Kylix 2 and higher, which helps keep the size of non-UI applications like services or web applications to a minimum.
標(biāo)簽：
application
libraries
compiles
directly
上傳時(shí)間：
2015-04-04
上傳用戶：sz_hjbf
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This program dump password hashes from local or remote Windows NT/2000 machines. It
prints them onto the screen in l0phtcrack format, or will write them to a file if Desired.
標(biāo)簽：
password
machines
program
Windows
上傳時(shí)間：
2014-01-15
上傳用戶：a673761058
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A new blind adaptive multiuser detection scheme based on a hybrid of Kalman filter and
subspace estimation is proposed. It is shown that the detector can be expressed as an anchored
signal in the signal subspace and the coefficients can be estimated by the Kalman filter using only
the signature waveform and the timing of the Desired user.
標(biāo)簽：
multiuser
detection
adaptive
subspace
上傳時(shí)間：
2015-09-07
上傳用戶：xieguodong1234
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The MATLAB coding style, project options and synthesis directives can have a significant effect on the final results. Knowledge about how a particular algorithm should be implemented in hardware can be reflected in the MATLAB code to improve the results. In doing so, the MATLAB loses a bit of its abstraction but the lower-level MATLAB will infer the Desired architecture into the device.
標(biāo)簽：
significant
directives
synthesis
project
上傳時(shí)間：
2013-12-03
上傳用戶：13517191407
