From 37f928fa5a3c01bd522a1d0db17d88ce4cdd0e03 Mon Sep 17 00:00:00 2001 From: Matt Ettus Date: Fri, 8 Oct 2010 14:01:33 -0700 Subject: checkpoint in flow control packet generation --- usrp2/vrt/trigger_context_pkt.v | 52 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 usrp2/vrt/trigger_context_pkt.v (limited to 'usrp2/vrt/trigger_context_pkt.v') diff --git a/usrp2/vrt/trigger_context_pkt.v b/usrp2/vrt/trigger_context_pkt.v new file mode 100644 index 000000000..51790dfae --- /dev/null +++ b/usrp2/vrt/trigger_context_pkt.v @@ -0,0 +1,52 @@ + + +module trigger_context_pkt + #(parameter BASE=0) + (input clk, input reset, input clear, + input set_stb, input [7:0] set_addr, input [31:0] set_data, + input packet_consumed, output reg trigger); + + wire [23:0] cycles; + wire [15:0] packets; + wire [6:0] dummy1; + wire [14:0] dummy2; + wire enable_timed, enable_consumed; + reg [30:0] cycle_count, packet_count; + + + setting_reg #(.my_addr(BASE_CTRL+X), .at_reset(0)) sr_settings + (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), + .in(set_data),.out({enable_cycle,dummy1,cycles}),.changed()); + + setting_reg #(.my_addr(BASE_CTRL+X), .at_reset(0)) sr_settings + (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), + .in(set_data),.out({enable_consumed,dummy2,packets}),.changed()); + + always @(posedge clk) + if(reset | clear) + cycle_count <= 0; + else + if(trigger) + cycle_count <= 0; + else if(enable_cycle) + cycle_count <= cycle_count + 1; + + always @(posedge clk) + if(reset | clear) + packet_count <= 0; + else + if(trigger) + packet_count <= 0; + else if(packet_consumed & enable_consumed) + packet_count <= packet_count + 1; + + always @(posedge clk) + if(reset | clear) + trigger <= 0; + else + if((cycle_count > cycles)|(packet_count > packets)) + trigger <= 1; + else + trigger <= 0; + +endmodule // trigger_context_pkt -- cgit v1.2.3