C8051F040 operation timing of the HT1380, as well as set

电子秒表的设计 1、用系统8253定时器提供的55ms定时单位，设计秒表定时程序。 2、有关系统定时方法： PC机系统中的8253定时器0工作于方式3，外部提供一个时钟作为CLK信号, 频率：f=1.1931816MHz。 定时器0输出方波的频率:fout=1.1931816/65536=18.2Hz。 输出方波的周期Tout=1/18.2=54.945ms。8253A每隔55ms引起一次中断-Electronic stopwatch design one, using the system timer 8253 provides 55ms timing units, design stopwatch timing procedures. 2, the system timing method: PC system timer 0 of 8253 working in the way of 3, to provide an external clock as the CLK signal, the frequency: f = 1.1931816MHz. Timer 0 output square wave frequency: fout = 1.1931816/65536 = 18.2Hz. Cycle square wave output Tout = 1/18.2 = 54.945ms. 8253A every 55ms caused a disruption

gm8123串口扩展开发程序，适合初学者。-gm8123 serial port expansion development process, suitable for beginners.

LT_1B msp430开发板例子程序－TB3

VB串口通讯实例 高精度电压表(24bit) VB源程序，很不错的，不信你就来看看！-VB serial communication example high precision voltage meter (24bit) VB source code, it is good, do not believe you take a look at!

atmega32 和RS485的通讯，已经在电路板上测试通过，RS232相对简单一点，RS485需要对控制收发信号处理一下，并且需要RS232转RS485工具来验证收发是否正确-atmega32 and RS485 communication, has been tested in the circuit board, RS232 relatively simple point, RS485 transceiver control signals need to deal with you, and will need RS232 to RS485 transceiver tools to verify the correctness of

C51 TIMER 0的使用 Timer_0_mode_0_timer_gate_soft-C51 TIMER 0 use Timer_0_mode_0_timer_gate_soft

通信电源中，整流器模块控制器程序。ATmega16L，8M晶振，使用USART通信中断，使用ADC采集模块数据，使用部分通用I/O口控制模块开关机。-communication power, the rectifier module controller program. Indicator, 8M crystal use USARTs communications interruptions, and the use of ADC data acquisition module, the use of part of general-purpose I/O control module switching machines.

本程序是一师兄给我的，用于液晶屏的滚动显示，给大家参考参考-this is a process, told it to me, for the rolling screen, to your information.

u盘制作资料(原理图、文档、底层驱动源程序)_-u disk production of information (drawings, documents, the bottom-driven source) _

LM3S101单片机模拟I2C 本模拟I2C软件包包含了I2C操作的底层函数，如发送数据及接收数据,应答位发送,并提供了几个直接面对器件的操作函数，它很方便的与用户程序连接并扩展.