URL
https://opencores.org/ocsvn/ps2_host_controller/ps2_host_controller/trunk
Subversion Repositories ps2_host_controller
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Rev 2 → Rev 3
/ps2_host_controller/trunk/hdl/ps2_host_watchdog.v
48,10 → 48,23
output wire watchdog_rst |
); |
|
wire ps2_clk_edge = ps2_clk_posedge | ps2_clk_negedge; |
|
reg watchdog_active; |
always @(posedge sys_clk) |
begin |
if (sys_rst | watchdog_rst | ~(watchdog_active | ps2_clk_edge)) begin |
watchdog_active = 0; |
end |
else begin |
watchdog_active = 1; |
end |
end |
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reg [`T_200_MICROSECONDS_SIZE - 1:0] watchdog_timer; |
always @(posedge sys_clk) |
begin |
if (sys_rst | watchdog_rst | ps2_clk_posedge | ps2_clk_negedge) begin |
if (sys_rst | watchdog_rst | ~watchdog_active | ps2_clk_edge) begin |
watchdog_timer <= `T_200_MICROSECONDS; |
end |
else begin |