Display the Hex digits 0 to F on a 7-segment LED interface, with an appropriate delay in between
Program:-
#include <LPC21xx.h>
unsigned int delay, count=0, Switchcount=0;
unsigned int Disp[16]={0x003F0000, 0x00060000, 0x005B0000, 0x004F0000, 0x00660000,
0x006D0000, 0x007D0000, 0x00070000, 0x007F0000, 0x006F0000, 0x00770000,0x007C0000,
0x00390000, 0x005E0000, 0x00790000, 0x00710000 };
int main (void)
{
PINSEL1 = 0x00000000;
IO0DIR = 0xF0FF0000;
while(1)
{
//Display values on Seven Segment
IO0SET = 0x10000000;
IO0CLR = 0x00FF0000;
for(delay=0;delay<100;delay++)
IO0SET = Disp[Switchcount]; // display the values 0 to F one after the other
for(delay=0;delay<1000000;delay++);
Switchcount++;
if(Switchcount == 16) // after F go back to 0
{
Switchcount = 0;
}
}
}