custom tax and post types

I created two custom post types ( smartphones and tablets ) and a custom taxonomy ( brand ) assigned to both of them.
Now, i would like to display the tax terms, created in both of cpt, as links and then when one clicks on a link, the posts of the cpt ( and only that cpt ) display.
Example of code:

$terms = get_terms( 'marque' ); //ce qui permet d'avoir le term_name et term_id
					$query = new WP_Query(
							array('post_type' => 'smartphones',
								'tax_query' => array(
									array(
										'taxonomy' => 'marque',
										'filed' => $term->term_id
									),

								),
							),
						);
					if( $query->have_posts() ) : while( $query->have_posts() ) : $query->the_post();
					foreach($terms as $term){

						//$term_link = get_term_link( $term );

						echo '<li><a href="';
						the_permalink();
						echo '">';
						the_title();
						echo '</a></li>';

					}
					endwhile; endif;
					wp_reset_postdata();

would you please help????
thank you.