MIZ702学习笔记ex3遇到的问题

用的vivado版本为2013.4
板子是zedboard。
按照宋公的教程一步步做下去都完整，最后下载比特流到板子上时候却只亮了led0一盏灯。
这是流水灯程序
module led_test(
      input CLK,//时钟信号
      input RSTn,//复位信号
      output reg [7:0]LED
);
      reg [31:0]C0;
always @(posedge CLK or negedge RSTn)//时钟信号上升沿或者复位信号下降沿
   if(!RSTn)
   begin
         LED <= 8'b0000_0001;
         C0 <= 32'h0;
   end
   else
   begin
         if(C0 == 32'd50_000_000)
         begin
            C0 <= 32'h0;
            if(LED == 8'b1000_0000)
            LED <= 8'b0000_0001;
            else LED <= LED << 1;
         end
         else begin C0 <= C0 + 1'b1; LED <= LED; end
   end

endmodule

然后是约束文件
set_property PACKAGE_PIN Y9 [get_ports {CLK}]
set_property IOSTANDARD LVCMOS33 [get_ports {CLK}]

set_property PACKAGE_PIN N15 [get_ports {RSTn}]
set_property IOSTANDARD LVCMOS18 [get_ports {RSTn}]

set_property PACKAGE_PIN T22 [get_ports {LED[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[0]}]
set_property PACKAGE_PIN T21 [get_ports {LED[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[1]}]
set_property PACKAGE_PIN U22 [get_ports {LED[2]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[2]}]
set_property PACKAGE_PIN U21 [get_ports {LED[3]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[3]}]
set_property PACKAGE_PIN V22 [get_ports {LED[4]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[4]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[5]}]
set_property PACKAGE_PIN W22 [get_ports {LED[5]}]
set_property PACKAGE_PIN U19 [get_ports {LED[6]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[6]}]
set_property IOSTANDARD LVCMOS33 [get_ports {LED[7]}]
set_property PACKAGE_PIN U14 [get_ports {LED[7]}]

但是结果只亮了一盏灯，是vivado版本问题还是zedboard板和miz702有不同？

uisrc · 发表于 2015-12-11 18:33:15

这个例子和MIZ702开发板配套的，你仔细找找什么地方出问题了

RZJM · 发表于 2015-12-12 23:48:49

大部分都是一样的，有一组switch 开关不一样，其余的几乎都一样。

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