34 lines
685 B
C
34 lines
685 B
C
#include <LPC17xx.h>
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int main(){
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unsigned long int i,j,n,number=0,count=0;
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unsigned char seven_seg[16] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, 0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71};
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LPC_PINCON -> PINSEL0 = 0;
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LPC_GPIO0 -> FIODIR = 0xFF<<4;
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LPC_PINCON -> PINSEL3 = 0;
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LPC_GPIO1 -> FIODIR = 0x0F<<23;
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while(1){
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n = number;
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for(i = 0; i < 4; i++){
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LPC_GPIO1 -> FIOPIN = i << 23;
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LPC_GPIO0 -> FIOPIN = seven_seg[n%10] << 4;
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n = n/10;
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for(j=0;j<1000;j++); // value refresh delay
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LPC_GPIO0 -> FIOPIN = 0; // clears
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}
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count++;
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if(count == 1000){ // change delay
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count = 0;
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number = (number+1)%10000;
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}
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}
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}
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