ODDR_has_invalid_load: ODDR cell xxxx loads should only be an output buffer o...

littleshrimp

ODDR_has_invalid_load: ODDR cell xxxx loads should only be an output buffer o... [复制链接]

今天使用vivado开发ZYNQ出现下边错误:

ODDR_has_invalid_load: ODDR cell xxxx loads should only be an output buffer or a port, but it is driving an invalid load (one or more of): xxx_OBUF_inst

从提示上没看出原因，后来通过网络查找到产生这个问题是因为DDR输出的信号不能使用ILA探测：

https://support.xilinx.com/s/question/0D52E00006iI4Ly/drc-2320-rule-violation-reqp1884-oddrhasinvalidload?language=en_US