add cursor

lcd.c

@@ -9,6 +9,8 @@
 
 volatile unsigned char char_counter = 0;
 
+volatile uint8_t lcd_ctrl_reg = 0;
+
 // output data to lcd
 void lcd_out (unsigned char c) {
 	i2c_start(LCD_I2C_ADDR);
@@ -60,6 +62,13 @@ void lcd_set_position(uint8_t row, uint8_t col){
     char_counter = (row * LCD_WIDTH) + col;
 }
 
+void lcd_cursor(uint8_t en){
+    if(en)
+        lcd_nibble_out(0x08 | 0x04 | 0x02, 0);
+    else
+        lcd_nibble_out(0x08 | 0x04, 0);
+}
+
 //***************************************************************************************
 // clear LCD
 void lcd_clear() {