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Size: 596992 |
Author: 苏陈 |
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Description: 用PIC单片机内部定时器0，作为16位定时器使用，并开启溢出中断。单片机的外部中断0引脚接开关SW2，并设置为下降沿的触发方式。单片机的UART接口工作于全双工异步模式，1个起始位，8个数据位，1个停止位，波特率为9600，并开启接收中断，与PC机通信。编写程序实现功能：SW2按键按下时，LCD上显示“Timer0 Start”, 定时器0开始工作，然后LCD上显示“Timer0 Working”,当UART接收到PC机发送的命令“P”时，定时器0停止工作，LCD上显示“Timer0 Stop”,并把定时时间发回给PC机。
并使用ICD2仿真器进行程序的烧写和仿真调试。
-PIC microcontroller internal timer 0 as a 16-bit timer, and open the overflow interrupt. MCU external interrupt 0 pin is connected to switch SW2, and set to the falling edge of the trigger. The microcontroller UART interface operates in full-duplex asynchronous mode, one start bit, 8 data bits, 1 stop bit, baud rate of 9600, and open to receive interrupt communication with the PC. Write a program to achieve functional: SW2 button is pressed, the display on the LCD Timer0 Start " to, timer 0 start work, and then displayed on the LCD Timer0 Working" When UART receives commands sent to the PC, " P" , the timer 0 stop working, the Timer0 Stop " is displayed on the LCD, and the timing time is sent back to the PC. And to use ICD2 emulator for procedural programming and simulation debugging.
Platform: |
Size: 57344 |
Author: 杨梦红 |
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Description: 配置CCP1模块使之工作于PWM模式，并初始化周期和占空比。单片机的UART接口工作于全双工异步模式，1个起始位，8个数据位，1个停止位，波特率为9600，并开启接收中断，与PC机通信。编写程序实现功能：当UART接收到命令“S”时，LCD上显示“PWM Start”, PWM开始工作。当UART接收到命令“U”时，占空比增加，当UART接收到命令“D”时，占空比减少，并在LCD上显示占空比。当UART接收到命令“P”时, PWM停止工作，LCD上显示“PWM Stop”。并用示波器观察PWM输出波形的变化。
并使用ICD2仿真器进行程序的烧写和仿真调试。
-Configure the CCP1 module for PWM operation, and initialize the period and duty cycle. The microcontroller UART interface operates in full-duplex asynchronous mode, one start bit, 8 data bits, 1 stop bit, baud rate of 9600, and open to receive interrupt communication with the PC. Write a program to achieve functional: " PWM Start" , PWM start working when the UART receiver to command " S" is displayed on the LCD. Increase the duty cycle when received by the UART command " U" , When UART receives command " D" , the duty cycle to reduce the duty cycle is displayed on the LCD. When the when UART receives command " P" , the the PWM stop working, PWM Stop " is displayed on the LCD. And observe the change of the PWM output waveform with an oscilloscope. And to use ICD2 emulator for procedural programming and simulation debugging.
Platform: |
Size: 113664 |
Author: 杨梦红 |
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