232vPORTA = 0x00 DDRA = 0x00 PORTB = 0x04 DDRB = 0x04 PORTC = 0x00 DDRC = 0x00 PORTD = 0x00 DDRD = 0x00 -232PORTA = 0x00 DDRA = 0x00 PORTB = 0x04 DDRB = 0x04 PORTC = 0x00 DDRC = 0x00

该程序用于开关量的输入，并显示在与D口相连的LED上，S1~S8分别控制Q1~Q8，开关量采用SPI方式通过74HC165输入，在调试程序时必须把8位的拔码开关拔向相应的位置，即把8个LED接到PORTD口上 -The program used to switch the amount of input, and display associated with the LED on port D, S1 ~ S8 are controlled Q1 ~ Q8, switching capac

/RS,RW,E分别接RE0,RE1,RE2 D7-D0接RD口 #include <pic.h> /*头文件*/ #define LCD_RS RE0 /*定义引脚*/ #define LCD_RW RE1 #define LCD_E RE2 #define Busy RD7 void WR_COMM() void DISPLY() void CHECK_BF() void PLAY_LCD() /*函数声明*/ vo

LED Flasher with External oscillator and 8 led that connect to PORTD and two Capacitor,Chip type : ATmega16 Clock frequency : 4.000000 MHz-LED Flasher with External oscillator and 8 led that connect to PORTD and two Capacitor,Chip type : ATmega16

该程序是用于PIC18F4550外部边沿中断，当有边沿触发后让PORTD口出现20MS的高地电平-The program is for PIC18F4550 external edge interrupt, when there is an edge triggered let PORTD port highlands appear 20MS level