?? rssi.v
?? 這是用python語言寫的一個數字廣播的信號處理工具包。利用它
?? V
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??
module rssi (input clock, input reset, input enable, input [11:0] adc, output [15:0] rssi, output [15:0] over_count); wire over_hi = (adc == 12'h7FF); wire over_lo = (adc == 12'h800); wire over = over_hi | over_lo; reg [25:0] over_count_int; always @(posedge clock) if(reset | ~enable) over_count_int <= #1 26'd0; else over_count_int <= #1 over_count_int + (over ? 26'd65535 : 26'd0) - over_count_int[25:10]; assign over_count = over_count_int[25:10]; wire [11:0] abs_adc = adc[11] ? ~adc : adc; reg [25:0] rssi_int; always @(posedge clock) if(reset | ~enable) rssi_int <= #1 26'd0; else rssi_int <= #1 rssi_int + abs_adc - rssi_int[25:10]; assign rssi = rssi_int[25:10]; endmodule // rssi
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