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author | David Shah <davey1576@gmail.com> | 2017-11-16 14:03:11 +0000 |
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committer | David Shah <davey1576@gmail.com> | 2017-11-17 15:09:51 +0000 |
commit | cdf688363968ee8895d8e6fe08178cff8fc9ee75 (patch) | |
tree | dfb5dfcf669fcc46ea0d8bb7351e2488d4f6cfb2 /examples | |
parent | 8f9eba3fe3f91bd503015ac0b8e0801d6e0694c0 (diff) | |
download | icestorm-cdf688363968ee8895d8e6fe08178cff8fc9ee75.tar.gz icestorm-cdf688363968ee8895d8e6fe08178cff8fc9ee75.tar.bz2 icestorm-cdf688363968ee8895d8e6fe08178cff8fc9ee75.zip |
UltraPlus DSPs working
Diffstat (limited to 'examples')
-rw-r--r-- | examples/up5k_mac16/.gitignore | 12 | ||||
-rw-r--r-- | examples/up5k_mac16/mac16.pcf | 4 | ||||
-rw-r--r-- | examples/up5k_mac16/mac16.v | 71 |
3 files changed, 87 insertions, 0 deletions
diff --git a/examples/up5k_mac16/.gitignore b/examples/up5k_mac16/.gitignore new file mode 100644 index 0000000..dd32bfb --- /dev/null +++ b/examples/up5k_mac16/.gitignore @@ -0,0 +1,12 @@ +*.bin +*.blif +*.asc +*.rpt +*.glb +*.psb +*.sdf +*.vsb +*.bin +*.tmp/ +*.exp +*.vlog diff --git a/examples/up5k_mac16/mac16.pcf b/examples/up5k_mac16/mac16.pcf new file mode 100644 index 0000000..24b9b45 --- /dev/null +++ b/examples/up5k_mac16/mac16.pcf @@ -0,0 +1,4 @@ +set_io clk 44 +set_io rstn 27 +set_io LED1 12 +set_io LED2 13
\ No newline at end of file diff --git a/examples/up5k_mac16/mac16.v b/examples/up5k_mac16/mac16.v new file mode 100644 index 0000000..73740e3 --- /dev/null +++ b/examples/up5k_mac16/mac16.v @@ -0,0 +1,71 @@ +module top( + input clk, + input rstn, + output LED1, + output LED2); + +wire reset = !rstn; + +wire [15:0] A = 16'd999; +wire [15:0] B = 16'd12345; +wire [31:0] RES = 32'd12332655; + +wire [31:0] dsp_out; + +SB_MAC16 i_sbmac16 + ( + .A(A), + .B(B), + .C(16'b0), + .D(16'b0), + .CLK(clk), + .CE(1'b1), + .IRSTTOP(reset), + .IRSTBOT(reset), + .ORSTTOP(reset), + .ORSTBOT(reset), + .AHOLD(1'b0), + .BHOLD(1'b0), + .CHOLD(1'b0), + .DHOLD(1'b0), + .OHOLDTOP(1'b0), + .OHOLDBOT(1'b0), + .OLOADTOP(1'b0), + .OLOADBOT(1'b0), + .ADDSUBTOP(1'b0), + .ADDSUBBOT(1'b0), + .CO(), + .CI(1'b0), + .O(dsp_out) + ); + +//16x16 => 32 unsigned pipelined multiply +defparam i_sbmac16. B_SIGNED = 1'b0; +defparam i_sbmac16. A_SIGNED = 1'b0; +defparam i_sbmac16. MODE_8x8 = 1'b0; + +defparam i_sbmac16. BOTADDSUB_CARRYSELECT = 2'b00; +defparam i_sbmac16. BOTADDSUB_UPPERINPUT = 1'b0; +defparam i_sbmac16. BOTADDSUB_LOWERINPUT = 2'b00; +defparam i_sbmac16. BOTOUTPUT_SELECT = 2'b11; + +defparam i_sbmac16. TOPADDSUB_CARRYSELECT = 2'b00; +defparam i_sbmac16. TOPADDSUB_UPPERINPUT = 1'b0; +defparam i_sbmac16. TOPADDSUB_LOWERINPUT = 2'b00; +defparam i_sbmac16. TOPOUTPUT_SELECT = 2'b11; + +defparam i_sbmac16. PIPELINE_16x16_MULT_REG2 = 1'b1; +defparam i_sbmac16. PIPELINE_16x16_MULT_REG1 = 1'b1; +defparam i_sbmac16. BOT_8x8_MULT_REG = 1'b1; +defparam i_sbmac16. TOP_8x8_MULT_REG = 1'b1; +defparam i_sbmac16. D_REG = 1'b0; +defparam i_sbmac16. B_REG = 1'b1; +defparam i_sbmac16. A_REG = 1'b1; +defparam i_sbmac16. C_REG = 1'b0; + +assign LED1 = (dsp_out == RES) ? 1'b1 : 1'b0; +assign LED2 = 1'b0; + + + +endmodule
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