C语言编译器的源代码

读取TXT文档里的GPS数据卡尔曼滤波程序，对于初学者很有帮助-TXT file to read GPS data in the Kalman filter procedure, very helpful for beginners

键盘控制相应的LED不同状态,直观易懂好学.PIC就从这里开始.-keyboard to control the corresponding LED different states, is easy to understand learning. PIC from here.

Turbo Assembly 5.0 Very difficult to find

一个简单的汇编程序源代码-a simple compilation of source code

很全的dos命令，对于汇编过程中要用的的命令查询很有参考价值-Very wide of the dos command for the compilation process to use the command query valuable

著名的开源链接器，可链接obj和lib文件，目标格式可以是MSDOS COM、MSDOS EXE或Win32 PE文件-a famous opened linker can link both obj and lib texts , in which destination format can be MSDOS ,COM ,MSDOS,EXE or Win32 PE file

用c语言编写的一个游戏、通讯录程序-use of a language game, contacts procedures

单片机控制nrf401发送接收数据 汇编语言-SCM nrf401 send receive data assembly language

1，消除按键的抖动问题 因为按键在闭合或断开过程中出现一段抖动期，主要由于按键的不稳定性引起的，这时会呈现一串页脉冲，时间的长短和开关的机械特性有关。一般在5ms~10ms之间。为保证CPU对键的一次闭合作一次处理，必须去抖动。在键的稳定闭合或断开时读键的状态。 2，据EICE51原理图编写并调试一个键输入子程序，其功能为判断键盘上有无键输入，若有键入，作去抖动处理后，计算输入键的键号送累加器A。-eliminate jitter button issues as keys or disconnect the closure process for some jitter period, mainly due to the instability of the keys to the cause, then it will result in a bunch of pages pulse, the duration and switches on the mechanical properties. General ~ 10ms between 5ms. To ensure that the CPU in a pair of keys a close cooperation, must go jitter. The key to the stability closed or disconnected when reading the key state. 2, EICE51 schematics prepared and debug a key input subroutine, and its function of determining whether keys on the keyboard input, if typing for to handle jitter, the admission of Bond, Bond sent accumulator A.

采用超小型封装读卡芯片，如图 1所示； z 符合 ISO14443 标准； z 可选择 5V或 3.3V供电； z 能接双天线，能识别是哪一个天线上有卡； z 有I 2 C从机接口，也有UART接口或RS-232 接口； z 可主动检测卡进入，检测到卡时可产生中-采用超小型封装读卡芯片，如图 1所示； z 符合 ISO14443 标准； z 可选择 5V或 3.3V供电； z 能接双天线，能识别是哪一个天线上有卡； z 有I 2 C从机接口，也有UART接口或RS-232 接口； z 可主动检测卡进入，检测到卡时可产生中