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Original question:
DS90UB948-Q1: COAX模式眼图测试
使用USB2ANY调试端口，怎么接DS90UB954-Q1端口调试CMLOUT+和CMLOUT-端口，测试FPD-LINK眼图
您好，关于FPD link器件的眼图测试，以前我咨询过美国工程师，由于FPD link是双向器件，所以他们不推荐做眼图测试。更注重需要测量的是margin阈值分析，以及传输通道的插值损耗回拨损耗的特性。请参考之前的讨论：
https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1018048/ds90ub954-q1-about-eye-diagram?tisearch=e2e-sitesearch&keymatch=DS90UB954%252520EYE
如果仍要坚持做眼图测试，参考：
https://e2e.ti.com/support/interface-group/interface/f/interface-forum/935218/ds90ub954-q1-may-we-know-if-customer-need-test-eye-diagram-what-equipment-customer-need-to-prepare
