MSP430 USART experimental procedure using IAR Embedded Workbenc h software devel...

用8251实现串行口异步通信，自发自收，波特率1200bps。采用查询方式发送与接收。从键盘输入发送字符。发送与接收的字符均在屏幕上显示。按esc键返回dos-Achieved with the 8251 serial asynchronous communication, spontaneous self-income, the baud rate 1200bps. Way to send and receive using queries. To send characters from the keyboard. Send and receive characters are displayed on the screen. Press esc key to return to dos

键盘实现电子琴功能....用61h和1ah端口实现-Electronic organ function keyboard implementation .... 1ah use port 61h and implementation

超声波避障源码，可以参考，要原理图请联系我-Ultrasonic obstacle avoidance source code, can refer to the schematic, please contact me

查看dos版本号-View dos version

微机原理与接口技术课程设计实验报告 实验一 电子琴-principle of the computer and interface technology curriculum design an experiment report experimental flower

An example to illustrate how to set the internal adjustable CID gain and receive FSK or DTMF data. Assume end-code of DTMF data string is "D".-An example to illustrate how to set the inte CID rnal adjustable gain and receive FSK or DTMF data. Assume end-of DTMF code data string is "D" .

绝对经典，学习masm6.1的绝好东东，只可惜是E文版的。（注意设路径）。-absolute classics, and the excellent learning masm6.1 Wanton But it is a pity E version. (Note that established path).

迷你字库，是HEX文件,值得看看学习哈！-Mini font is HEX file, it is worth studying to see Ha!

利用VB语言实现SQL数据库和数据库中表的建立，减少了用户直接手动输入的麻烦。-VB language implementation using SQL database and the establishment of a database table, reducing the user directly to the trouble of manually entered.

在集成电路中，通常采用T型解码网络实现数字量往模拟的转换，再利用运算放大器完成模拟电流变为模拟电压的转换。所以，要把一个数字量变为模拟电压，实际上需要两个环节，先把数字量变为模拟电流，这是由D/A转换器完成的；再将模拟电流变成模拟电压，这是由运算放大器完成的。有时D/A转换器芯片只包含前一个环节，有些D/A转换器则包含两个环节，用前一种芯片时，需要外接运算放大器才能得到模拟电压。-In integrated circuits, the usual T-decode digital networks to analog conversion, and then complete the simulation of the use of op-amp current into the analog voltage conversion. Therefore, it is necessary to become a digital simulation of voltage, in fact, need two links, first into a digital simulation of currents, this is determined by D/A converters completed then simulate current into the analog voltage, this is determined by computing completed amplifier. Sometimes D/A converter chip contains only a part before, some D/A converter includes two aspects, before a chip, the need for external op-amp voltage can be simulated.