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Change timer wraparound behavior to be more useful

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This commit is contained in:
Jani Alinikula
2023-11-12 23:20:49 +02:00
committed by Olof Kindgren
parent bc74a9a1d7
commit bc984f6639
1 changed files with 3 additions and 3 deletions
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6
servant/servant_timer.v
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@@ -14,9 +14,9 @@ module servant_timer
localparam HIGH = WIDTH-1-DIVIDER;
reg [WIDTH-1:0] mtime;
reg [HIGH:0] mtimecmp;
reg signed [HIGH:0] mtimecmp;
wire [HIGH:0] mtimeslice = mtime[WIDTH-1:DIVIDER];
wire signed [HIGH:0] mtimeslice = mtime[WIDTH-1:DIVIDER];
always @(mtimeslice) begin
o_wb_dat = 32'd0;
@@ -27,7 +27,7 @@ module servant_timer
if (i_wb_cyc & i_wb_we)
mtimecmp <= i_wb_dat[HIGH:0];
mtime <= mtime + 'd1;
o_irq <= (mtimeslice >= mtimecmp);
o_irq <= (mtimeslice - mtimecmp >= 0);
if (RESET_STRATEGY != "NONE")
if (i_rst) begin
mtime <= 0;