/* Set the display top left drawing limit. 
Use this function to set the top left limit of the drawing limit box. */
void hx8347a_set_top_left_limit(hx8347a_coord_t x, hx8347a_coord_t y)
/* Set the display top left drawing limit. 
Use this function to set the top left limit of the drawing limit box. */
void hx8347a_set_top_left_limit(hx8347a_coord_t x, hx8347a_coord_t y)
{
	hx8347a_write_register(HX8347A_COLSTARTHIGH, (x >> 8));
	hx8347a_write_register(HX8347A_COLSTARTLOW, (x & 0xff));
	hx8347a_write_register(HX8347A_ROWSTARTHIGH, (y >> 8));
	hx8347a_write_register(HX8347A_ROWSTARTLOW, (y & 0xff));
}