Added toplevel schema. DDS works at 1khz. Measured with oscilloscope

2016-05-20 13:53:56 +02:00
parent 71b8cdb490
commit 16b7cc71ee
8 changed files with 560 additions and 42 deletions
--- a/dds.vhd
+++ b/dds.vhd
@@ -30,7 +30,7 @@ entity dds is
             acc_res: natural:=32;
             phase_res: natural:=15);
    Port ( clk : in  STD_LOGIC;
-           freq : in  unsigned (log2_int(max_freq)-1 downto 0);
+           freq : in  unsigned (16 downto 0); --log2_int(max_freq)-1
           form : in  unsigned (1 downto 0);
           amp : out  unsigned (adc_res-1 downto 0));
 end dds;