Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- module fpgatest(
- input OSC_50_B7A, // 50 MHz clock
- output [3:0] LED,
- output [3:0] LED_BRACKET,
- output LED_RJ45_L,
- output LED_RJ45_R
- );
- assign clk_main = OSC_50_B7A;
- // Offsets for desired frequencies
- parameter c_CNT_2HZ = 25000000; // period = 1/2 seconds
- parameter c_CNT_3HZ = 16666667; // period = 1/3 seconds
- // Counter
- reg [31:0] r_CNT_2HZ = 0;
- reg [31:0] r_CNT_3HZ = 0;
- reg led_2HZ_on;
- reg led_3HZ_on;
- always @ (posedge clk_main)
- begin
- if (r_CNT_2HZ == c_CNT_2HZ - 1) // -1, since counter starts at 0
- begin
- led_2HZ_on <= !led_2HZ_on;
- r_CNT_2HZ <= 0;
- end
- else
- r_CNT_2HZ <= r_CNT_2HZ + 1;
- end
- always @ (posedge clk_main)
- begin
- if (r_CNT_3HZ == c_CNT_3HZ - 1)
- begin
- led_3HZ_on <= !led_3HZ_on;
- r_CNT_3HZ <= 0;
- end
- else
- r_CNT_3HZ <= r_CNT_3HZ + 1;
- end
- assign LED_RJ45_L = led_2HZ_on;
- assign LED_RJ45_R = led_3HZ_on;
- assign LED[0] = led_2HZ_on;
- assign LED[1] = led_2HZ_on;
- assign LED[2] = led_3HZ_on;
- assign LED[3] = led_3HZ_on;
- assign LED_BRACKET[0] = led_2HZ_on;
- assign LED_BRACKET[1] = led_2HZ_on;
- assign LED_BRACKET[2] = led_3HZ_on;
- assign LED_BRACKET[3] = led_3HZ_on;
- endmodule
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement