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FREQ
说明： 用mcs-52系列单片机实现等精度频率测量，T1引脚接被测TTL信号，晶振22.1184MHz，对任何频率都可以实现很高精度的测量（精度<1 )，结果从串口字符串输出，波特率115200，可以用串口调试器观察结果.(With mcs-52 family of single chip and other precision frequency measurement, T1 pin then measured TTL signal, Crystal 22.1184MHz, any frequency can be achieved very high accuracy of measurement (precision<1 ), the result string from the serial output , baud rate 115200, serial debugger can observe the results.)
- 2010-05-02 16:45:44下载
- 积分：1
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T5557
T5557卡的读写程序，KEIL4平台，曼彻斯特解码(T5557 card reader procedures, KEIL4 platform, Manchester decoding)
- 2020-10-22 10:37:23下载
- 积分：1
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wannianli
液晶1602万年历显示
① 利用单片机内定时器，通过软件编程方式实现年、月、日、星期、时、分、秒7个参数的运行。
② 按大、小月显示月末日期。
③按24小时制显示时、分、秒。
④通过2个外接独立键盘实现对“万年历”的日期和的时间调整。
(602 liquid crystal display calendar
The use of single-chip microcomputer timer, through software programming to achieve the year, month, day, week, hours, minutes, seconds, 7 parameters of the operation.
According to the end date, Xiaoyue display.
According to the 24 hour system shows hours, minutes, seconds.
Through the 2 external independent keyboard implementation date and time adjustment of calendar .)
- 2016-04-13 08:59:39下载
- 积分：1
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Simcom---sim900-Customer-flash-loader-V1.01
SIMCOM FLASH LOADER SOFTWARE TO LOAD FIRMWARE IN SIM900
- 2014-02-05 13:35:37下载
- 积分：1
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12864huaxian
12864上面的并行画线，可以画圆，三角形，正方形，直线，正弦波(12,864 above the parallel line drawing, you can draw a circle, triangle, square, line, sine wave)
- 2013-08-20 16:28:28下载
- 积分：1
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lirc_bt829
Remote control driver for the TV-card based on bt829.
- 2013-03-26 22:28:09下载
- 积分：1
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Si4432
无线射频芯片SI4432技术手册及编程指南（中文）(Radio frequency chip SI4432 technical manuals and Programming Guide (Chinese))
- 2014-01-06 11:59:45下载
- 积分：1
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Protues-jiaocheng
protues的教程，初学者的必备，可以学习很多东西，对自己收益很大(study protues)
- 2013-11-28 11:53:19下载
- 积分：1
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3-digital-voltage-meter
51单片机运用PCF8591实现数模莫属转换（i2c协议）
1利用PCF8591 串行A/D 转换器转换电位器输入模拟电压，并在LED数码管上显示电压值（精确到2 位小数），实现数字电压表功能。
2在基本部分基础上，利用 PCF8591 的D/A 通道实现一个固定频率的方波（频率范围10~50Hz），并在虚拟示波器上输出。(51 MCU using PCF8591 to realize the digital to analog conversion (I2C) is
1 using PCF8591 serial A/D converter to convert the input analog voltage potentiometer, and in the digital tube LED display voltage values (accurate to 2 decimal places), the realization of digital voltage meter function.
2 in the basic part of basis, the realization of a fixed frequency Fang Bo using D/A channel PCF8591 (10~50Hz frequency range), and the output in a virtual oscilloscope.)
- 2015-01-23 11:38:51下载
- 积分：1
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PWM
实现mc68hc908单片机的控制PWM,产生PWM信号的源程序(Achieve mc68hc908 MCU control PWM, PWM signal generated source code)
- 2010-07-10 00:14:29下载
- 积分：1
