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发表于 2011-7-22 12:24:53
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TYPE sreg IS (ready,halfrise,maxvalue,fallhalf,halfvalue,halffall,minvalue,rise,fall,risehalf,newcmd);
if currentstate=nextstate then
count<=count+1;
case currentstate is
when ready=>
--if RESET='1' then
nextstate<=halfrise;
--nextstate<=halffail;
dactemp<="01111111";
finishout<='0';
addrsel<='0';
--test0<=not test0;
when halfrise=>
--test1<=not test1;
processflag<='0';
DACOUTQ<=dacarray2(count);
DACOUTI<=254-dacarray2(count);
if count=14 then
dactemp<="11111110";
nextstate<=maxvalue;
else
nextstate<=halfrise;
dactemp<="01111111";
end if;
when halffall=>
片段供参考 |
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