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TUSB213測試眼圖異常

Other Parts Discussed in Thread: TUSB213

我們使用TUSB213測試USB眼圖,

發現主機進入眼圖測試模式約2秒後, TUSB213/ TUSB217的USB信號補償自動消失(100%)

線路是依造參考設計上的值, 沒有使用I2C.

VREG: 1.78V

RSTN: 3.15V

有沒有甚麼建議從何驗證?? 謝謝!

TUSB217的pin 8&14 電壓分別是0V,3.85V, 也是相同的現象!