Write a ticker program in C language-EEWORLD

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#define MAIN_Fosc 22118400L //Define the main clock

#include "STC15Fxxxx.H"

/********* Function description*** The program uses P4.7 P4.6 P1.6 P1.7 to demonstrate the marquee and output low drive. **********/

void delay_ms(u8 ms);

/************************ Main function******************/

void main(void)

{

P0M1 = 0; P0M0 = 0; //Set to quasi-bidirectional port

P1M1 = 0; P1M0 = 0; //Set to quasi-bidirectional port

P2M1 = 0; P2M0 = 0; //Set to quasi-bidirectional port

P3M1 = 0; P3M0 = 0; //Set to quasi-bidirectional port

P4M1 = 0; P4M0 = 0; //Set to quasi-bidirectional port

P5M1 = 0; P5M0 = 0; //Set to quasi-bidirectional port

P6M1 = 0; P6M0 = 0; //Set to quasi-bidirectional port

P7M1 = 0; P7M0 = 0; //Set to quasi-bidirectional port

while(1)

{

P17 = 0;

delay_ms(250);

P17 = 1;

P16 = 0;

delay_ms(250);

P16 = 1;

P47 = 0;

delay_ms(250);

P47 = 1;

P46 = 0;

delay_ms(250);

P46 = 1;

}

void delay_ms(u8 ms)

{

u16i;

do{

i = MAIN_Fosc / 13000;

while(--i); //14T per loop

}while(--ms);

}

Reference address：Write a ticker program in C language

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