added the use of the pushbutton to turn on and off decimal points and…i

labs/9_events/2025_02_21_tijuana_solutions/extra_peripherals/2_rotary_encoder/hackathon_top.sv

@@ -1,6 +1,5 @@
 // Board configuration: tang_nano_9k_lcd_480_272_tm1638_hackathon
-// This module uses few parameterization and relaxed typing rules
-
+// Updated hackathon_top.sv
 module hackathon_top
 (
     input  logic       clock,
@@ -10,13 +9,9 @@ module hackathon_top
     input  logic [7:0] key,
     output logic [7:0] led,
 
-    // A dynamic seven-segment display
-
     output logic [7:0] abcdefgh,
     output logic [7:0] digit,
 
-    // LCD screen interface
-
     input  logic [8:0] x,
     input  logic [8:0] y,
 
@@ -26,33 +21,29 @@ module hackathon_top
 
     inout  logic [3:0] gpio
 );
-
-    // Exercise: Instantiate the ultrasonic module
-    // and the 7-segment display controller module,
-    // connect them with each other and with GPIO
-
-    // START_SOLUTION
 
+    // For rotary encoder A/B signals
     wire a, b;
-
-    sync_and_debounce # (.w (2))
-    i_sync_and_debounce
-    (
-        .clk      ( clock       ),
-        .reset    ( reset       ),
-        .sw_in    ( gpio [3:2]  ),
-        .sw_out   ( { b, a }    )
-    );
+
+    // Connect A and B directly to gpio pins
+    assign a = gpio[2];
+    assign b = gpio[3];
+
+    // Connect switch directly to gpio[0] 
+    wire sw = gpio[0];  // Direct connection to GPIO0
 
     wire [15:0] value;
+    wire sw_state;
 
     rotary_encoder i_rotary_encoder
     (
         .clk      ( clock       ),
         .reset    ( reset       ),
         .a        ( a           ),
         .b        ( b           ),
-        .value    ( value       )
+        .value    ( value       ),
+        .sw       ( sw          ),  // Direct connection to switch
+        .sw_state ( sw_state    )
     );
 
     seven_segment_display
@@ -62,11 +53,12 @@ module hackathon_top
         .clk      ( clock       ),
         .rst      ( reset       ),
         .number   ( 32' (value) ),
-        .dots     ( '0          ),
+        .dots     ( {8{sw_state}} ),  // Control decimal points with switch state
         .abcdefgh ( abcdefgh    ),
         .digit    ( digit       )
     );
 
-    // END_SOLUTION
+    // Display switch state on all LEDs
+    assign led = {8{sw_state}};  // Control LEDs with switch state
 
-endmodule
+endmodule

labs/9_events/2025_02_21_tijuana_solutions/extra_peripherals/2_rotary_encoder/rotary_encoder.sv

@@ -1,14 +1,14 @@
 `include "config.svh"
 
-// Rotary Encoder Ky-040
-
 module rotary_encoder
 (
     input               clk,
     input               reset,
     input               a,
     input               b,
-    output logic [15:0] value
+    output logic [15:0] value,
+    input               sw,
+    output logic        sw_state
 );
 
     logic prev_a;
@@ -22,7 +22,7 @@ module rotary_encoder
     always_ff @ (posedge clk)
         if (reset)
         begin
-            value <= - 16'd1;  // To do: figure out why we have to start with -1 and not 0
+            value <= - 16'd1;
         end
         else if (a && ! prev_a)
         begin
@@ -32,4 +32,12 @@ module rotary_encoder
                 value <= value - 16'd1;
         end
 
-endmodule
+    // Simple switch handling with optional inversion
+    // Try both options to see which works with your hardware
+    // Option 1: Direct assignment
+    assign sw_state = sw;
+
+    // Option 2: Inverted (if switch is active-low)
+    // assign sw_state = !sw;
+
+endmodule