[DRC PORTPROP-6] I/O standard compatibility with attribute usage: Port clk has property DIFF_TERM_ADV set, but its I/O Standard, DIFF_HSTL_I_12, does not support this property. 该错误提示约束属性中约定了DIFF_TERM_ADV,但是DIFF_HSTL_I_12电平标准不支持。具体的原因笔者不太清楚,但是大概是...
In the Vivado IDE I see "DIFF_TERM_ADV" has a value of "TERM_NONE" in the "I/O Ports" tab for the clock input "sys_clk_p". However, when I run the following command in the Tcl console, I get an empty value: get_property DIFF_TERM_ADV [get_ports sys_clk_p] ...