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    R528-s3喇叭咔嗒声

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    • H
      HQEmbed LV 5 last edited by HQEmbed

      R528-s3外接喇叭, 从HPOUTL HPOUTR引出信号到PA,使用PG17做为MUTE信号。 用aplay播放wav提示音时,会先有咔嗒声, msleep_time也调整过,都还是有,这个要从哪里着手解决呢?这个已经导产,是一个影响产品体验的bug.

      pa_level	= <0x00>;
      pa_pwr_level	= <0x01>;
      pa_msleep_time	= <500>;	//0x78
      gpio-spk	= <&pio PG 17 GPIO_ACTIVE_LOW>;
      
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      • H
        HQEmbed LV 5 @HQEmbed last edited by

        补充下,PA EN信号是正确的,我的MUTE信号是高电平静音,所以pa_level要设置成0x00.

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        • H
          HQEmbed LV 5 @HQEmbed last edited by

          在sound的soc-core.c中pmdown_time也更改过,从5000改到0x7fff ffff,也没用。

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          • H
            HQEmbed LV 5 last edited by

            结贴,把LINE OUT关闭,只让HP输出即可。

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