如题,在原理图编译后出现警告“XX has no driving source”?
他是个警告,可以不予理会,但我想知道他出现的原因?还望各位予以指教。
上图:
Class Document Source Message Time Date No.
[Warning] DBRsch.Sch Compiler Net COM_G has no driving source (Pin R35-1,Pin R36-2,Pin U20-1,Pin U20-19) 19:01:16 2013/6/29 1
[Warning] DBRsch.Sch Compiler Net DIN0 has no driving source (Pin C100-1,Pin R68-1,Pin U27-4,Pin UL1-2) 19:01:16 2013/6/29 2
[Warning] DBRsch.Sch Compiler Net DIN1 has no driving source (Pin C101-1,Pin R69-1,Pin U28-4,Pin UL1-4) 19:01:16 2013/6/29 3
[Warning] DBRsch.Sch Compiler Net DIN2 has no driving source (Pin C109-1,Pin R77-1,Pin U30-4,Pin UL1-6) 19:01:16 2013/6/29 4
[Warning] DBRsch.Sch Compiler Net DIN3 has no driving source (Pin C110-1,Pin R78-1,Pin U31-4,Pin UL1-8) 19:01:16 2013/6/29 5
[Warning] DBRsch.Sch Compiler Net DIN4 has no driving source (Pin C120-1,Pin R84-1,Pin U33-4,Pin UL1-11) 19:01:16 2013/6/29 6
[Warning] DBRsch.Sch Compiler Net DIN5 has no driving source (Pin C121-1,Pin R85-1,Pin U34-4,Pin UL1-13) 19:01:16 2013/6/29 7
[Warning] DBRsch.Sch Compiler Net DIN6 has no driving source (Pin C133-1,Pin R94-1,Pin U38-4,Pin UL1-15) 19:01:16 2013/6/29 8
[Warning] DBRsch.Sch Compiler Net DIN7 has no driving source (Pin C134-1,Pin R95-1,Pin U39-4,Pin UL1-17) 19:01:16 2013/6/29 9
[Warning] DBRsch.Sch Compiler Net PE8/DO1 has no driving source (Pin TVS8-1,Pin U12-39,Pin U20-2) 19:01:16 2013/6/29 10
[Warning] DBRsch.Sch Compiler Net PE9/DO2 has no driving source (Pin TVS8-3,Pin U12-40,Pin U20-4) 19:01:16 2013/6/29 11
[Warning] DBRsch.Sch Compiler Net PE10/DO3 has no driving source (Pin TVS8-6,Pin U12-41,Pin U20-6) 19:01:16 2013/6/29 12
[Warning] DBRsch.Sch Compiler Net PE11/DO4 has no driving source (Pin TVS8-4,Pin U12-42,Pin U20-8) 19:01:16 2013/6/29 13
[Warning] DBRsch.Sch Compiler Net PE12/DO5 has no driving source (Pin TVS10-1,Pin U12-43,Pin U20-11) 19:01:16 2013/6/29 14
[Warning] DBRsch.Sch Compiler Net PE13/DO6 has no driving source (Pin TVS10-3,Pin U12-44,Pin U20-13) 19:01:16 2013/6/29 15
[Warning] DBRsch.Sch Compiler Net PE14/DO7 has no driving source (Pin TVS10-6,Pin U12-45,Pin U20-15) 19:01:16 2013/6/29 16
[Warning] DBRsch.Sch Compiler Net PE15/DO8 has no driving source (Pin TVS10-4,Pin U12-46,Pin U20-17) 19:01:16 2013/6/29 17
[Info] dianbanre2013 6 6.PrjPcb Compiler Compile successful, no errors found. 19:01:16 2013/6/29 18
检查了管脚连接都是完好的,并且封装也没有问题,所以对他的出现比较疑惑,还请大侠指点。。。