PIC单片机的几个设计实例,不可多得！

基于单片机用软件实现直流电机PWM 调速系统-Realize single-chip software-based DC motor PWM speed control system

MCS-51单片机有5个中断源，其中两个是由-INT0、-INT1引脚输入的外部中断源；另外三个是内部中断源即由T0、T1的溢出引起中断和串行口发送完一个字节或接收到一个字节数据引起中断。触发外部中断有两种方式，即下降沿引起中断或低电平引起中断。当编程TCON中的ITi（i=0、1）为1时，则引起触发的方式为边沿触发方式，反之(ITi=0)为低电平触发方式。每个中断源的中断请求能否得到响应要受两级“开关”的控制，即一个总“开关”-MCS-51 single-chip has five interrupt sources, two of which are by-INT0,-INT1 pin input external interrupt source the other three internal interrupt sources from the T0, T1 overflow caused by the disruption and serial port sending or receiving end of a byte to a byte of data caused by interruption. Triggered external interrupt has two modes, namely, falling edge or low-level disruption caused disruption caused. When programming TCON in ITi (i = 0,1) for the 1:00 has been the subject of a way to trigger the way to the edge of the trigger, on the contrary (ITi = 0) for low-level trigger mode. Each interrupt source interrupt request can be subject to levels in response to

1、arm7芯片2138驱动大液晶 2、ym320240的液晶驱动 3、动态等待图标的显示 4、各种字符的显示。 -1, arm7 chip liquid crystal 2138 driver 2, ym320240 LCD Driver 3, dynamic wait icon display 4, a variety of characters in the display.

这是我大学4年来做过的竞赛以及老师的科研项目所积累下来的c51源代码，一共有40多 个，心血啊！-This is my 4-year university has done the race, as well as the teacher

LCD常用取模软件,还行-LCD common modulus of software, but also line

基于sl1811芯片的功能，完成usb host 的功能-usb host

一个简单的程序，但是是我入门的时候写的，还不错-a simple procedure, but it is when I start to write, but also good

一个单片机控制有刷电机的C代码-an MCU control of a motor brush C code

系统能够产生正弦波、方波、三角波。同时还可以作为频率计测频率。函数信号的产生由MAX038和外围电路完成，能产生1Hz―20MHz的波形。-system can produce sine, square, triangle wave. Also as frequency measurement frequency. Signals generated by the MAX038 completed and the external circuit, which can produce 1Hz- 20MHz waveforms.

51-320240液晶操作程序-51-320240 LCD operations