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(fpga) Simplify code, improve commenst in tb.

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Change names of states and remove redundant state.
       Fix comments and printout to clarify.

Signed-off-by: Joachim Strömbergson <joachim@assured.se>
This commit is contained in:
Joachim Strömbergson 2024-08-15 11:41:50 +02:00
parent de4db95bb0
commit 2d0c1b5ab6
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GPG Key ID: 5DDC7C542422EC8D
2 changed files with 9 additions and 8 deletions
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13
hw/application_fpga/core/timer/rtl/timer_core.v
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@ -31,9 +31,8 @@ module timer_core(
//----------------------------------------------------------------
// Internal constant and parameter definitions.
//----------------------------------------------------------------
localparam CTRL_IDLE = 2'h0;
localparam CTRL_PRESCALER = 2'h1;
localparam CTRL_TIMER = 2'h2;
localparam CTRL_IDLE = 1'h0;
localparam CTRL_RUNNING = 1'h1;
//----------------------------------------------------------------
@ -55,8 +54,8 @@ module timer_core(
reg timer_rst;
reg timer_inc;
reg [1 : 0] core_ctrl_reg;
reg [1 : 0] core_ctrl_new;
reg core_ctrl_reg;
reg core_ctrl_new;
reg core_ctrl_we;
@ -160,13 +159,13 @@ module timer_core(
prescaler_rst = 1'h1;
timer_rst = 1'h1;
core_ctrl_new = CTRL_PRESCALER;
core_ctrl_new = CTRL_RUNNING;
core_ctrl_we = 1'h1;
end
end
CTRL_PRESCALER: begin
CTRL_RUNNING: begin
if (stop) begin
running_new = 1'h0;
running_we = 1'h1;

4
hw/application_fpga/core/timer/tb/tb_timer_core.v
View File

@ -215,6 +215,8 @@ module tb_timer_core();
//----------------------------------------------------------------
// test1()
//
// Test that the timer can count to a specified number of cycles.
//----------------------------------------------------------------
task test1;
begin : test1
@ -225,7 +227,7 @@ module tb_timer_core();
tc_ctr = tc_ctr + 1;
$display("--- test1: Run timer to set value started.");
$display("--- test1: prescaler: 6, timer: 9. Should take 6*9 + 1 = 55 cycles..");
$display("--- test1: prescaler: 6, timer: 9. Should take 6*9 + 1 = 55 cycles.");
tb_prescaler_init = 32'h6;
tb_timer_init = 32'h9;
test1_expected_num_cycles = tb_prescaler_init * tb_timer_init + 1;