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| author | Josh Blum <josh@joshknows.com> | 2010-12-06 18:55:20 -0800 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2010-12-06 18:55:20 -0800 |
| commit | d6a07130299b1727a2210809fa9efe515ce37c24 (patch) | |
| tree | 6c08ad769f2e24386611fc960b90e62955fd2921 | |
| parent | fa42f88bf3007909a56c3582fe58097edaf2e074 (diff) | |
| download | uhd-d6a07130299b1727a2210809fa9efe515ce37c24.tar.gz uhd-d6a07130299b1727a2210809fa9efe515ce37c24.tar.bz2 uhd-d6a07130299b1727a2210809fa9efe515ce37c24.zip | |
zpu: shrank the ram size and address bus to 16k
| -rw-r--r-- | usrp2/top/u2_rev3/u2_core_udp.v | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/usrp2/top/u2_rev3/u2_core_udp.v b/usrp2/top/u2_rev3/u2_core_udp.v index f90f3b193..787aa4c2f 100644 --- a/usrp2/top/u2_rev3/u2_core_udp.v +++ b/usrp2/top/u2_rev3/u2_core_udp.v @@ -3,7 +3,7 @@ // //////////////////////////////////////////////////////////////////////////////// module u2_core - #(parameter RAM_SIZE=32768) + #(parameter RAM_SIZE=16384, parameter RAM_AW=14) (// Clocks input dsp_clk, input wb_clk, @@ -292,7 +292,7 @@ module u2_core wire [3:0] ram_loader_sel; wire ram_loader_stb, ram_loader_we; wire iwb_ack, iwb_stb; - ram_loader #(.AWIDTH(16),.RAM_SIZE(RAM_SIZE)) + ram_loader #(.AWIDTH(aw),.RAM_SIZE(RAM_SIZE)) ram_loader (.wb_clk(wb_clk),.dsp_clk(dsp_clk),.ram_loader_rst(ram_loader_rst), .wb_dat(ram_loader_dat),.wb_adr(ram_loader_adr), .wb_stb(ram_loader_stb),.wb_sel(ram_loader_sel), @@ -334,10 +334,10 @@ module u2_core // I-port connects directly to processor and ram loader wire flush_icache; - ram_harvard #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6)) + ram_harvard #(.AWIDTH(RAM_AW),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6)) sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst), - .ram_loader_adr_i(ram_loader_adr[14:0]), .ram_loader_dat_i(ram_loader_dat), + .ram_loader_adr_i(ram_loader_adr[RAM_AW-1:0]), .ram_loader_dat_i(ram_loader_dat), .ram_loader_stb_i(ram_loader_stb), .ram_loader_sel_i(ram_loader_sel), .ram_loader_we_i(ram_loader_we), .ram_loader_done_i(ram_loader_done), @@ -345,7 +345,7 @@ module u2_core .if_adr(if_adr), .if_data(if_dat), - .dwb_adr_i(s0_adr[14:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i), + .dwb_adr_i(s0_adr[RAM_AW-1:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i), .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel), .flush_icache(flush_icache)); |