Nvidia orin nano GPIO Pull high/low remove

[liyongru1998]

你好
我有一塊Nvidia Orin Nano 4G開發版，我有兩個IR開關裝在GPIO09與GPIO13，但是當IR開關啟動時，GPIO讀值都為0，是否是GPIO內部電阻影響?請問有辦法將上拉電阻或下拉電阻關閉嗎?

下圖是IR開關

[kayccc]

Sorry for the late response.
Is this still an issue to support? Any result can be shared?

[JerryChang]

hello liyongru1998,

you should have pinmux configuration update to revise the settings,
please see-also Generating the Pinmux dtsi Files for reference, thanks

[liyongru1998]

您好:
請問更新 pinmux 配置是指紅色圈起來的地方，可以改pull high/pull low嗎?

[JerryChang]

hello liyongru1998,

please configure to Int PU or Int PD per your pin usage,
you may double check the created pinmux.dtsi file, and gpio.dtsi file for pin definition.