The LPC1850/30/20/10 are ARM Cortex-M3 based microcontrollers for embeddedapplications. The ARM Cortex-M3 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC1850/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals. The ARMCortex-M3 CPU also includes an internal prefetch unit that supports speculativebranching.The LPC1850/30/20/10 include up to 200 kB of on-chip SRAM data memory, a quad SPIFlash Interface (SPIFI), a State Configuration Timer (SCT) subsystem, two High-speedUSB controllers, Ethernet, LCD, an external memory controller, and multiple digital andanalog peripherals.
上傳時間： 2014-12-31
上傳用戶：zhuoying119
The LPC4350/30/20/10 are ARM Cortex-M4 based microcontrollers for embeddedapplications. The ARM Cortex-M4 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC4350/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals, andincludes an internal prefetch unit that supports speculative branching. The ARMCortex-M4 supports single-cycle digital signal processing and SIMD instructions. Ahardware floating-point processor is integrated in the core.The LPC4350/30/20/10 include an ARM Cortex-M0 coprocessor, up to 264 kB of datamemory, advanced configurable peripherals such as the State Configurable Timer (SCT)and the Serial General Purpose I/O (SGPIO) interface, two High-speed USB controllers,Ethernet, LCD, an external memory controller, and multiple digital and analog peripherals
上傳時間： 2013-10-28
上傳用戶：15501536189
文字的顏色漸變，On timer用法
標簽：
上傳時間： 2013-12-17
上傳用戶：hasan2015
有關此程序的功能請見程序中的幫助菜單程序難點1：創(chuàng)建Windows xp中按鈕樣式解決方法：使用標簽控件與形狀控件一起形成此樣式此方法缺點：由于標簽沒有TAB事件，所以不能使用鍵盤控制按鈕。此缺點解方法：截取鍵盤事件，以響應TAB事件（時間有限，沒有實現(xiàn)）程序難點2:實時與分時混合應用解決方法：置一FOR循環(huán)在TIMER中，先判斷并響應時實進程，再置另一當循環(huán)在TIMER中，無時實時再執(zhí)行分時進程。程序難點3：分頁式內存管理的調度方式解決方法：具體方法見程序中的注釋。程序難點4:基于優(yōu)先級的調度方式解決方法：使用雙重當循環(huán)，第一層判斷優(yōu)先級，第二層判斷執(zhí)行進程.此程序不足之處：不能響應鍵盤事件，沒有程序的等待狀態(tài)，由于LIST控件的先天不足進程列表看上去有點閃爍。當然程序的等待狀態(tài)可以隨機產(chǎn)生但由于沒有太多時間專注于此，只好等以后再完善了。希望大家指出不足之處!
上傳時間： 2015-03-12
上傳用戶：海陸空653
一個交通紅綠燈線程，利用組件timer來進行時間分割，出來的效果真的不錯~
上傳時間： 2013-12-09
上傳用戶：pinksun9
tty驅動 * This driver shows how to create a minimal tty driver. It does not rely on * any backing hardware, but creates a timer that emulates data being received * from some kind of hardware.
標簽： driver tty backing minimal
上傳時間： 2013-12-04
上傳用戶：金宜
Tic Tac Toe程序。可以供一到兩個玩家使用。程序中使用了visual basic 計時器，所以每一個步驟都有時間限制。此外，計算機可是一個有簡單智能的對手，他不但不會隨便出手，反而還要竭力贏了你才罷休。 Tic Tac Toe program. One or two players. It uses the visual basic timer, so each move has time limit. Simple artificial intelligence: computer does not play randomly, but "tries" to win and stop you from winning.
上傳時間： 2015-04-11
上傳用戶：sxdtlqqjl
This firmware translates a PS/2 mouse to a USB mouse. The translator firmware is entirely interrupt driven (with the exception of sending the data via USB to the host.) An interrupt is generated when the PS/2 start bit is received, at which time the firmware will begin its receive routine. In addition to this interrupt, every 168ms a timer overflow interrupts the main program and implements one state of the mouse state machine. This state machine handles sending bytes to and translating bytes received from the PS/2 mouse automatically. All of this is done in the background while the main program runs in the foreground. The only operation that the main program implements is sending mouse data to the PC via USB.
標簽： firmware mouse translates translator
上傳時間： 2015-04-26
上傳用戶：cuiyashuo
The goal of this lab is (1) to under the defects of software timers, (2) to write a periodic program without timers, (3) to write a periodic program using timer Hardware:Host computer PC Software: GNU GCC
標簽： software periodic defects timers
上傳時間： 2014-08-13
上傳用戶：古谷仁美
從空格(ASCII碼32)到~(ASCII碼126)。表內的第一行與表頭相同，下面的每一行都與上一行的內容相同，只是字符相左移動了一個位置。這樣，下一行的最后一個字符與上一行的第一個字符相同。 為了進行文本編碼，可以任意選擇一個字符串，稱之為編碼字符串，也就是常說的密鑰。為解釋編碼方法，我們假設密鑰是Walrus，待編碼的文本（即常說的明文）是： Meet me in St. Louis 我們在待編碼的文本之上重復書寫上述密鑰，使得其長度與待編碼文本相同： WalrusWalrusWalrusWa Meet me in St. Louis 從上述兩行文本中按列對應方式依次提取一個字符，可得到多個字符對：WM、ae、le等，這些字符對可用作上表的索引。這樣，依次以這些字符對作為索引可從上表查到一系列字符，這些字符就構成了文本編碼，即常說的密文。例如，第W行第M列隊應得字符是%，因此編碼的第一個字符就是%；第a行第e列對應的字符是G；第l行第e列對應的是R。依次進行上述查找操作，可以得到完整的密文 %Grgua=aVauGLol?eiAU 進行相反的操作就可對該文本解碼。 編寫編碼/解碼程序，可以對文本文件或鍵盤輸入的字符串進行編碼/解碼，在選擇編碼解碼后，需要提示用戶輸入密鑰。
上傳時間： 2014-01-16
上傳用戶：Ants
