Add ES/Lab/Lab8/7SegUpCounter.c

ES/Lab/Lab8/7SegUpCounter.c

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