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ALMSlinger's avatar
ALMSlinger
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3 years ago

Error(17044): Illegal connection on I/O input buffer primitive

How do I fix this error? I am using QPro 20.4. Error(17044): Illegal connection on I/O input buffer primitive h_qsys_inst|ddr_mem_a|ddr_mem_a|arch|arch_inst|bufs_inst|gen_mem_dqs.inst[4].b|cal_oc...
MARS2's avatar
MARS2
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2 years ago

Illegal connection on I/O input buffer primitive DDR3L|emif_c10_0|arch|arch_inst|bufs_inst|gen_mem_dqs.inst[4].b|cal_oct.ibuf. Source I/O pin DDR3L|emif_c10_0|arch|arch_inst|bufs_inst|gen_mem_dqs.inst[4].b|cal_oct.obuf drives out to destinations other than the specified I/O input buffer primitive. Modify your design so the specified source I/O pin drives only the specified I/O input buffer primitive.