Place:1318 - User has over-constrained component
U1A_selectIO/bufio2_inv_inst. There are no placeable sites that satisfy the
user constraints. Please review the user constraints on the driver component
and the load components of U1A_selectIO/bufio2_inv_inst.
ADC采样加selectIO带串并转换功能,对应的8个差分数据输入和差分位数据时钟,差分帧时钟分配引脚之后就会报错,不知道应用这个串并转换模块对于差分输入有什么引脚限制?哪位大神有相关经验不吝赐教!