请教一个仿真过程中碰到的一个error

gyuek

#error info is below：

Error-[NOA] Null object access
/proj/library/pub/env/tb/tb_pg_seqlib.svh, 405
The object at dereference depth 1 is being used before it was
constructed/allocated.
Please make sure that the object is allocated before using it.

tb_pg_seqlib.svh, 405 is below：

         tile_o.pg_mst.ip_regs.register(pgmst_reg_name).read(status, orig_value);


想请教下error info中The object at dereference depth 1 ，depth 1是指的pg_mst未allocated吗？

iwantto

是不是没有new

小小舟

Please make sure that the object is allocated before using it.

gyuek

回复 3# 小小舟

多谢回复，我是指b_pg_seqlib.svh, 405 is below：

         tile_o.pg_mst.ip_regs.register(pgmst_reg_name).read(status, orig_value);


The object at dereference depth 1 ，depth 1是指的pg_mst未allocated吗？


depth 1所指的对象是tile_o还是pgmst_reg_name？

20130101

楼主你好！请问问题解决了吗？我现在也遇到这个error了，向你请教一下，谢谢！

axinailsa

回复 5# 20130101


    遇到了同样问题，求解啊 ！！！非常感谢

mila07

回复 6# axinailsa

在出错地方前一行加入类似下面的代码调试就好了if(tile_o == null) begin
   $display("ERROR: tile_o not create!");
end
else if(tile_o.pg_mst==null) begin
   $display("ERROR: tile_o.pg_mst not create!");
end