// The top level module for the Project Checkpoint 1
//
//   Interface to the board:
//
// inputs:
//    clk
//    reset_raw
//    enter_raw
//    dip
//
//  outputs:
//    ledpanel_raw
//    left_led_raw
//    right_led_raw
//
//   Interface to the rest of the world:
//
//  inputs:
//    uart_in  - one bit input for the serial receiver
//
//  outputs:
//    uart_sample - one bit output that is asserted every time the 'uart_in' is sampled

module supertop (clk, reset_raw, enter_raw, dip, ledpanel_raw, left_led_raw, right_led_raw, 
			uart_in, uart_sample) ;

input clk ;
input reset_raw ;
input enter_raw ;
input [7:0] dip ;
output [7:0] ledpanel_raw ;
output [7:0] left_led_raw ;
output [7:0] right_led_raw ;

input uart_in;
output uart_sample;

wire reset, enter;
reg [7:0] ledpanel;

// make sure that all input pins come with positive logic
PULLUP u2 (.O(enter_raw));
assign enter = ~enter_raw;
assign reset = ~reset_raw;

// prepare outputs
assign ledpanel_raw = ~ledpanel;

// do not light decimal point
wire dot;
assign dot = 1'b0;

// currently output the content of ledpanel[7:0] on the seven segment 
// number display
bin2LED b2l_l (.in(ledpanel[7:4]), .in_dot(dot), .out(left_led_raw));
bin2LED b2l_r (.in(ledpanel[3:0]), .in_dot(dot), .out(right_led_raw));


// Welcome to Checkpoint 1:
//   This file will, in conjuction with the constraint file project_constraint.exc,
//   provide you with the interface to the outside world. You can use the following 
//   signals:
//   (1) clk
//   (2) reset
//   (3) enter
//   (4) dip[7:0]
//      NOTE: all inputs from buttons have been preprocessed and are POSITIVE logic (e.g.
//            when you press RESET, the signal 'reset' will be high. However, it is your
//            responsibility to debounce, edge detect, etc. each required input.
//
//   You can also use ledpanel[7:0] output to display info on the LED bar, or look above for 
//   bin2LED modules that will output whatever you want to the number display (currently it
//   displays the content of ledpanel[7:0]).
//
//   Q: What should you do for checkpoint 1?
//   A: Write the UART-type receiver. Its input is signal 'uart_in'. It has two outputs:
//      (1) output the value received on the number display,
//      (2) assert signal 'uart_sample' every time your UART receiver samples a value 
//          (this will help you and us to see that your UART is operating correctly)
//   


// your code here......

endmodule