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FPGA
fpga编译警告问题
2019-07-16 02:07
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FPGA
3185
8
909
那位大哥帮忙看下这个编译警告怎样解决啊；谢谢了！
Warning (10631): VHDL Process Statement warning at ac
ti
on.vhd(163): inferring latch(es) for signal or variable "data1", which holds its previous value in one or more paths through the process
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8条回答
lstcspring
1楼-- · 2019-07-16 02:15
代码贴上来，IO信号接得有问题
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shinfo
2楼-- · 2019-07-16 06:15
p2: process(cnt,see_temp)
begin
if see_temp='0' then
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
else
case cnt is --The robot perform actions data
when 0 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 1 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 2 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 3 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 4 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 5 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 6 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
-- when 7 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
-- when 8 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
-- when 9 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
when others=>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
end case;
end if;
end process p2;
加载中...
shinfo
3楼-- · 2019-07-16 10:46
data1,data2,data3.......data10都是数据，see_temp是使能信号
加载中...
shinfo
4楼-- · 2019-07-16 12:41
精彩回答 2 元偷偷看……
加载中...
ytphrx
5楼-- · 2019-07-16 15:34
明显data1....是信号,不能直接赋整数值.只能是二进制,8进制,16进制的字符串.也就是说<=两边的数据类型不匹配啊.
加载中...
ytphrx
6楼-- · 2019-07-16 16:00
例如:data1<="010101",或者data1<=O"176",或者data1<=x"AD0"等.
加载中...
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begin
if see_temp='0' then
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
else
case cnt is --The robot perform actions data
when 0 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 1 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 2 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 3 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 4 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 5 =>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
when 6 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
-- when 7 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
-- when 8 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
-- when 9 =>
-- data1 <=30000;
-- data2 <=40000;
-- data3 <=50000;
-- data4 <=60000;
-- data5 <=70000;
-- data6 <=80000;
-- data7 <=90000;
-- data8 <=100000;
-- data9 <=110000;
-- data10<=120000;
when others=>
data1 <=30000;
data2 <=40000;
data3 <=50000;
data4 <=60000;
data5 <=70000;
data6 <=80000;
data7 <=90000;
data8 <=100000;
data9 <=110000;
data10<=120000;
end case;
end if;
end process p2;
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