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Altera_Forum
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14 years ago

DE0-Nano Accelerometer code help (almost there)

Can anyone spot the problem with my VHDL-code please? I pasted it at the pastebin because it was over 1000 lines:rolleyes: http://pastebin.com/draraqr7 Line 384 and 480 -- data1(7) <= ...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Your two line codes after the "begin" (lines 52 and 53) don't define initial conditions, as I guess is doing the "initial" block in the Verilog code, but is permanently assigning the values "00000000000" and '0' to step and q.

You may want to put those initialisations in a reset part in each process, or just define the initial value when you declare the signal. This, for example:
   SIGNAL q             : STD_LOGIC := '0';
   SIGNAL step          : STD_LOGIC_VECTOR(10 DOWNTO 0) := (others => '0');