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.
上传时间： 2014-12-31
上传用户：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
上传时间： 2013-10-28
上传用户：15501536189
文字的颜色渐变，On timer用法
标签：
上传时间： 2013-12-17
上传用户：hasan2015
有关此程序的功能请见程序中的帮助菜单程序难点1：创建Windows xp中按钮样式解决方法：使用标签控件与形状控件一起形成此样式此方法缺点：由于标签没有TAB事件，所以不能使用键盘控制按钮。此缺点解方法：截取键盘事件，以响应TAB事件（时间有限，没有实现）程序难点2:实时与分时混合应用解决方法：置一FOR循环在TIMER中，先判断并响应时实进程，再置另一当循环在TIMER中，无时实时再执行分时进程。程序难点3：分页式内存管理的调度方式解决方法：具体方法见程序中的注释。程序难点4:基于优先级的调度方式解决方法：使用双重当循环，第一层判断优先级，第二层判断执行进程.此程序不足之处：不能响应键盘事件，没有程序的等待状态，由于LIST控件的先天不足进程列表看上去有点闪烁。当然程序的等待状态可以随机产生但由于没有太多时间专注于此，只好等以后再完善了。希望大家指出不足之处!
上传时间： 2015-03-12
上传用户：海陆空653
一个交通红绿灯线程，利用组件timer来进行时间分割，出来的效果真的不错~
上传时间： 2013-12-09
上传用户：pinksun9
tty驱动 * 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.
标签： driver tty backing minimal
上传时间： 2013-12-04
上传用户：金宜
Tic Tac Toe程序。可以供一到两个玩家使用。程序中使用了visual basic 计时器，所以每一个步骤都有时间限制。此外，计算机可是一个有简单智能的对手，他不但不会随便出手，反而还要竭力赢了你才罢休。 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.
上传时间： 2015-04-11
上传用户：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.
标签： firmware mouse translates translator
上传时间： 2015-04-26
上传用户：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
标签： software periodic defects timers
上传时间： 2014-08-13
上传用户：古谷仁美
从空格(ASCII码32)到~(ASCII码126)。表内的第一行与表头相同，下面的每一行都与上一行的内容相同，只是字符相左移动了一个位置。这样，下一行的最后一个字符与上一行的第一个字符相同。 为了进行文本编码，可以任意选择一个字符串，称之为编码字符串，也就是常说的密钥。为解释编码方法，我们假设密钥是Walrus，待编码的文本（即常说的明文）是： Meet me in St. Louis 我们在待编码的文本之上重复书写上述密钥，使得其长度与待编码文本相同： WalrusWalrusWalrusWa Meet me in St. Louis 从上述两行文本中按列对应方式依次提取一个字符，可得到多个字符对：WM、ae、le等，这些字符对可用作上表的索引。这样，依次以这些字符对作为索引可从上表查到一系列字符，这些字符就构成了文本编码，即常说的密文。例如，第W行第M列队应得字符是%，因此编码的第一个字符就是%；第a行第e列对应的字符是G；第l行第e列对应的是R。依次进行上述查找操作，可以得到完整的密文 %Grgua=aVauGLol?eiAU 进行相反的操作就可对该文本解码。 编写编码/解码程序，可以对文本文件或键盘输入的字符串进行编码/解码，在选择编码解码后，需要提示用户输入密钥。
上传时间： 2014-01-16
上传用户：Ants
