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layer_1.v
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layer_1.v
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module layer_1(
input clk,
input reset_n,
input [7:0] input_spike,
output [7:0] output_spike
);
parameter NUM_NEURONS = 8;
reg [NUM_NEURONS-1:0] spike_layer_1_potential_reg[NUM_NEURONS-1:0];
wire [NUM_NEURONS-1:0] spike_layer_1_potential[NUM_NEURONS-1:0];
// Instantiate the neurons
// Layer 1: 8 neurons
// neuron1_0
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_0 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[0]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[0][7:0]),
.spike_out(output_spike[0])
);
// neuron1_1
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_1 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[1]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[1]),
.spike_out(output_spike[1])
);
// neuron1_2
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_2 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[2]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[2]),
.spike_out(output_spike[2])
);
// neuron1_3
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_3 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[3]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[3]),
.spike_out(output_spike[3])
);
// neuron1_4
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_4 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[4]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[4]),
.spike_out(output_spike[4])
);
// neuron1_5
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_5 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[5]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[5]),
.spike_out(output_spike[5])
);
// neuron1_6
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_6 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[6]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[6]),
.spike_out(output_spike[6])
);
// neuron1_7
leaky_integrate_fire uut_leaky_integrate_fire_layer_1_7 (
.clk(clk), .reset_n(reset_n),
.spike_in(input_spike[7:0]),
.weight(64'h77777777),
.memb_potential_in(spike_layer_1_potential_reg[7]),
.threshold(8'h9),
.leak_value(8'h1),
.tref(4'h2),
.memb_potential_out(spike_layer_1_potential[7]),
.spike_out(output_spike[7])
);
always @(posedge clk or negedge reset_n) begin
if (reset_n == 1'b0) begin
{spike_layer_1_potential_reg[7], spike_layer_1_potential_reg[6], spike_layer_1_potential_reg[5], spike_layer_1_potential_reg[4],
spike_layer_1_potential_reg[3], spike_layer_1_potential_reg[2], spike_layer_1_potential_reg[1], spike_layer_1_potential_reg[0]} <= 64'h0;
end else begin
{spike_layer_1_potential_reg[7], spike_layer_1_potential_reg[6], spike_layer_1_potential_reg[5], spike_layer_1_potential_reg[4],
spike_layer_1_potential_reg[3], spike_layer_1_potential_reg[2], spike_layer_1_potential_reg[1], spike_layer_1_potential_reg[0]} <= {spike_layer_1_potential[7], spike_layer_1_potential[6], spike_layer_1_potential[5], spike_layer_1_potential[4],
spike_layer_1_potential[3], spike_layer_1_potential[2], spike_layer_1_potential[1], spike_layer_1_potential[0]};
end
end
endmodule