Common Cathode configuration:
Common Anode configuration:
Applications
/* Name : main.c * Purpose : Source code for SEVEN SEGMENT Interfacing with ARM LPC1248. * Author : Gemicates * Date : 2018-11-01 * Website : www.gemicates.org * Revision : None */ #include<lpc21xx.h> // header file for LPC21XX series void delay(int time) // delay function declaration { // This function produces a delay in msec int i,j; for(i=0;i<time;i++) { for(j=0;j<i;j++); } } int main() // main function { int i,a[]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10,0x00,0x10}; // assign the array values as the hexadecimal no. of common anode to display the digits PINSEL0=0x00000000; // select PORT0 as GPIO mode IO0DIR=0xFFFFFFFF; // make PORT0 pin as Output mode while(1) // Repeat(loop) forever { for(i=0;i<10;i++) // This loop excutes for 9 times { IO0SET=a[i]; // Set the first 8 PORT0 pins delay(1000); // hault for sometime IO0CLR=a[i]; // clear the first 8 PORT0 pins } } return 0; // return back to main function }