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Altera_Forum
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17 years ago

cyclone iii problem with ddr sdram pin

i use altmemddr with sopc builder . when i compile the **.bdf ,I got error as below Error: The DDIO_OUT WYSIWYG primitive "c310:inst1|altmemddr:the_altmemddr|altmemddr_controller_phy:altmemdd...
Altera_Forum's avatar
Altera_Forum
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17 years ago

I had similar errors that all went away when I assigned the symbol lines to pins.

I have reduced mine down to one error now:

Error: The DDIO_OUT WYSIWYG primitive "NiosIIProcessor:inst5|altmemddr_0:the_altmemddr_0|altmemddr_0_controller_phy:altmemddr_0_controller_phy_inst|altmemddr_0_phy:alt_mem_phy_inst|altmemddr_0_phy_alt_mem_phy:altmemddr_0_phy_alt_mem_phy_inst|altmemddr_0_phy_alt_mem_phy_clk_reset:clk|altddio_bidir:DDR_CLK_OUT[0].ddr_clk_out_p|ddio_bidir_cmg:auto_generated|ddio_outa[0]" feeding the pin "DDR_CLK_P" has multiple fan-outs

There is a reset_CLK_n.... signal that I did not know what to do with since the CIII Starter Kit did not use this line but it may be unrelated to my problem not sure since I changed the symbol to make the reset_CLK_n line unused. I will search the Megafunction docs tomorrow but if anyone knows off the top of their head what the problem is or what I am suppose to do with the reset_CLK_n... line I would appreciate it.

Cheers