Brahma FM module technology :9903

用c语言实现对单片机端口的设置，已经调通，拿出来给大家分享-Use c language to realize single-chip port settings have been adjusted pass out to everyone to share

MSP430例子程序下载-MSP430 Example Program Download 111111111111111

人的进出门检测 发出语音播报 并有数码管显示商店的总来访人数及剩余人数-Detection of people go into the issue of voice broadcast and digital display stores the total number of visitors and the remaining number of

单片机正弦信号产生中改变正弦消耗频率时仍然保持采样频率的算法-SCM sinusoidal signal to change consumption frequency sinusoidal remained sampling frequency algorithm

8253的初始化程序举例: 例1：选择2号计数器，工作在3方式，计数初值为533H（2个字节），采用二进制计数。其初始化程序段为 MOV DX，307H ；命令口 MOV AL，10110110B ；2号计数器的初始化命 令字 OUT DX，AL ；写入命令寄存器 MOV DX，306H ；2号计数器数据口 MOV AX，533H ；计数初值 OUT DX，AL ；选送低字节到2号计数器 MOV AL，AH ；取高字节送AL OUT DX，AL ；后送高字节到2号计数器 -8253 initialization procedures examples : Example 1 : Select counters on the 2nd, in three ways. Counting for the initial 533H (2 bytes), a binary counting. Initialization of its procedures for MOV DX, 307H; I ordered MOV AL, 10110110B; on the 2nd Counter initialize command word OUT DX, AL; write commands Register MOV DX, 306H; data on the 2nd Counter I MOV AX, 533H; Counting initial OUT DX, AL; low-byte sent to the 2nd Counter MOV AL, AH; With a high-byte send AL OUT DX, AL; evacuations high byte counter to the 2nd

串口通信 单片机程序 isp在线下载功能-Single-chip serial communication program isp online download function

这个程序可以使用fpga上的晶振，用于测试晶振得使用-This process can use the FPGA on the crystal, crystal was used for testing

利用C8051F020作为控制器，对74LS165进行控制-C8051F020 use as a controller, control of the 74LS165

winbond w77e58扩展RAM以及双数据指针的编程方法演示-expansion RAM and dual data pointers programming method demonstration

ZLG500B读卡模块数据传输协议--底层函数和高级函数-ZLG500B reader module data transfer protocol-- the bottom and Senior Function Function