The SP486 and SP487 are low–power quad differential line drivers meeting RS-485 and RS-422 standards. The SP486 features a common driver enable control the SP487 provides independent driver enable controls for each pair of drivers. Both feature tri–state outputs and wide common–mode input range. Both are available in 16–pin plastic DIP and SOIC packages.
標簽： differential and standard drivers
上傳時間： 2014-01-13
上傳用戶：tianyi223
1. 8623L平臺，其并行flash已經被燒入uClinux系統，并有IP地址. 2. Windows客戶機,使用tera term通過串口,把kernel燒到并行flash上,用命令boot rom啟動uClinux并且登陸. 3. Linux服務器，主要作用是編譯軟件,有nfs服務，nfs服務目錄是/nfsdir,文件包括有8623L的驅動程序,應用程序和音視頻文件,可以被8620L使用. em8623的開發包
標簽： 8623L
上傳時間： 2014-07-25
上傳用戶：youth25
Murphy 大俠 GPL 的 C++/x86 RTOS, 支持 MMU, 用戶/核心 模式區隔. http://hpc.ee.ntu.edu.tw/~murphy/me/EKernel.html part 1 of 3: kernel
標簽： EKernel Murphy murphy RTOS
上傳時間： 2013-12-25
上傳用戶：lo25643
Murphy 大俠 GPL 的 C++/x86 RTOS, 支持 MMU, 用戶/核心 模式區隔. http://hpc.ee.ntu.edu.tw/~murphy/me/EKernel.html part 2 of 3: user mode LIB
標簽： EKernel Murphy murphy RTOS
上傳時間： 2013-12-23
上傳用戶：小鵬
cordic methods describe essentially the same algorithm that with suitably chosen inputs can be used to calculate a whole range of scientific functions including sin, cos, tan, arctan, arcsin, arccos, sinh, cosh, tanh, arctanh, log, exp, square root and even multiply and divide. the method dates back to volder [1959], and due to its versatility and compactness, it made possible the microcoding of the hp35 pocket scientific calculator in 1972. here is some code to illustrate the techniques. ive split the methods into three parts linear, circular and hyperbolic. in the hp35 microcode these would be unified into one function (for space reasons). because the linear mode can perform multiply and divide, you only need add/subtract and shift to complete the implementation. you can select in the code whether to do the multiples and divides also by cordic means. other multiplies and divides are all powers of 2 (these dont count). to eliminate these too, would involve ieee hackery.
標簽： essentially algorithm describe suitably
上傳時間： 2017-03-02
上傳用戶：litianchu
介紹計算機上實現gsm modem短消息收發的模式，描述gsm modem PDU 模式，包括PDU 模式下的gsm modem模塊UCS2 編碼、解碼原理，以及gsm modem發送與接收PDU 串的編制方式， VB 中的MSCOMM 控件，實現gsm modem短消息收發的核心內容。-briefed on computer modem gsm SMS transceiver model, described GSM modem PDU models, including the PDU mode GSM modem module UCS2 encoding, decoding principle, and GSM modems send and receive PDU Series presentation, the VB MSCOMM Control and achieve short GSM modem news transceiver core content
上傳時間： 2017-03-10
上傳用戶：cxl274287265
//獲得當前的模式 oldmode = vga_getcurrentmode[] //初始化 vga_init[] //判斷是否支持該模式 if[vga_hasmode[mode]] vga_setmode[mode] else { printf["No such mode\n"] exit[1] } //取得信息 width = vga_getxdim[] height = vga_getydim[] colors = vga_getcolors[] //繪圖 for[i=0 i<colors i++]{ vga_setcolor[i] vga_drawline[0, i, width-1, i] }
標簽： vga_getcurrentmode vga_init oldmode vga_ha
上傳時間： 2014-12-19
上傳用戶：maizezhen
//獲得當前的模式 oldmode = vga_getcurrentmode[] //初始化 vga_init[] //判斷是否支持該模式 if[vga_hasmode[mode]] vga_setmode[mode] else { printf["No such mode\n"] exit[1] } //獲得當前的模式 mode = vga_getcurrentmode[] info = vga_getmodeinfo[mode]
標簽： vga_getcurrentmode vga_init oldmode vga_ha
上傳時間： 2017-03-24
上傳用戶：ecooo
full wave rectifierDuring the period from 偽 to 蟺, the input voltage vs input current is are positive and the power flows from supply to the load. The converter is said to be operated at rectification mode .During the period from 蟺 to 蟺+偽 , the input voltage vs is negative and the input current is is positive and reverse power flows from load to the supply. The converter is said to be operated in inversion mode. Depending on the value of 偽, average output voltage can be either positive or negative and hence provides 2 quadrant operation.
標簽： input rectifierDuring the positive
上傳時間： 2017-04-10
上傳用戶：alan-ee
The main MIPS processor of SMP8630 comes with a JTAG interface, allowing: access to caches and data bus (DRAM) with a bandwidth of about 200kbit/s examining the processor state whatever the execution mode (monice) connecting to monice using mdi-server and using a gdb client on the processor to step and break accurately whatever the execution mode running semi-hosted applications fl ash write tool memory testing (MT command) real-time traces: has not been built in CPU (Config3_TL=0) and only supported by MajicPLUS probes (maybe built into emulator?)
標簽： interface processor allowing access
上傳時間： 2013-12-19
上傳用戶：youke111
