diff --git a/pic/MDR/MDR.c b/pic/MDR/MDR.c
index 3c04e30..d362e2c 100644
--- a/pic/MDR/MDR.c
+++ b/pic/MDR/MDR.c
@@ -233,27 +233,28 @@ void save_code()
 void clear_memory(void)
 {
 	uint16_t address;
-	uint8_t stored[3];
-	/* start at begining of the memory */
-	send_start();
-	if (send_byte(0xa0)) { /* write address to eeprom at 0xA0/0x50 */
-		send_stop();
-		return;
-	}
-	if (send_byte(0x00)) { /* go to address 0x0000 */
-		send_stop();
-		return;
-	}
-	if (send_byte(0x00)) { /* go to address 0x0000 */
-		send_stop();
-		return;
-	}
 	/* go through memory */
 	for (address=0; address<0x7FFF; address++) {
+		if ((address%0x40)==0) { /* select page */
+			send_start(); /* start transaction */
+			if (send_byte(0xa0)) { /* write address to eeprom at 0xA0/0x50 */
+				send_stop();
+				return;
+			}
+			if (send_byte(address>>8)) { /* go to address */
+				send_stop();
+				return;
+			}
+			if (send_byte(address&0xff)) { /* go to address */
+				send_stop();
+				return;
+			}
+		}
 		send_byte(0x00); /* clear byte */
+		if ((address%0x40)==0x3f) { /* end of page */
+			send_stop(); /* finish transaction */
+		}
 	}
-	send_stop(); /* finish transaction */
-
 }
 
 /* funcion called on interrupts */