把Quartus环境下调试正确的RAM读写模块在ISE14.7中重新综合后出现问题,RAM读部分正常,RAM写部分出现问题如下:Par:288 - The signal ram_addr_bus<0>_IBUF has no load. PAR will not attempt to route this signal.
Par:288 - The signal data_in_bus<4>_IBUF has no load. PAR will not attempt to route this signal.
之前也有一个论坛的网友遇到类似的问题,他的帖子链接是http://bbs.eetop.cn/viewthread.php?tid=266932,
希望能得到解答,谢谢!
always @(posedge ram_clk)
begin
if(wr_rst==1'b0)
ledtmp<=4'b1010;
else if (wr==1'b0)
mema[ram_addr_bus]<=data_in_bus;
ledtmp<=data_in_bus[3:0];
end
assign led=ledtmp;