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Changed reset mode to asynchronous for soft_latch.sv

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Konstantin Pavlov 2022-03-31 15:36:38 +03:00
parent 1a32f07dfc
commit e3cba6a4f6
1 changed files with 7 additions and 6 deletions
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13
soft_latch.sv
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@ -1,5 +1,6 @@
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
// soft_latch.sv // soft_latch.sv
// published as part of https://github.com/pConst/basic_verilog
// Konstantin Pavlov, pavlovconst@gmail.com // Konstantin Pavlov, pavlovconst@gmail.com
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
@ -40,7 +41,7 @@ soft_latch #(
.WIDTH( 16 ) .WIDTH( 16 )
) SL1 ( ) SL1 (
.clk( clk ), .clk( clk ),
.nrst( 1'b1 ), .anrst( 1'b1 ),
.latch( ), .latch( ),
.in( ), .in( ),
.out( ) .out( )
@ -50,10 +51,10 @@ soft_latch #(
module soft_latch #( parameter module soft_latch #( parameter
WIDTH = 1 // data width bit [7:0] WIDTH = 1 // data width
)( )(
input clk, // clock input clk, // clock
input nrst, // inverted reset input anrst, // inverted reset
input latch, // latch strobe input latch, // latch strobe
input [WIDTH-1:0] in, // data in input [WIDTH-1:0] in, // data in
@ -63,8 +64,8 @@ module soft_latch #( parameter
logic [WIDTH-1:0] in_buf = '0; logic [WIDTH-1:0] in_buf = '0;
// buffering input data // buffering input data
always_ff @(posedge clk) begin always_ff @(posedge clk or negedge anrst) begin
if( ~nrst ) begin if( ~anrst ) begin
in_buf[WIDTH-1:0] <= '0; in_buf[WIDTH-1:0] <= '0;
end else if( latch ) begin end else if( latch ) begin
in_buf[WIDTH-1:0] <= in[WIDTH-1:0]; in_buf[WIDTH-1:0] <= in[WIDTH-1:0];
@ -73,7 +74,7 @@ end
// mixing combinational and buffered data to the output // mixing combinational and buffered data to the output
always_comb begin always_comb begin
if( ~nrst ) begin if( ~anrst ) begin
out[WIDTH-1:0] <= '0; out[WIDTH-1:0] <= '0;
end else if( latch ) begin end else if( latch ) begin
out[WIDTH-1:0] <= in[WIDTH-1:0]; out[WIDTH-1:0] <= in[WIDTH-1:0];