Navigation

    全志在线开发者论坛

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • 在线文档
    • 社区主页

    T113使用RLT8189FSwifi模块CMD52命令偶尔没响应

    Linux
    2
    4
    1718
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • J
      Jacky502 LV 5 last edited by

      T113使用rlt8189fs模块上电偶尔出现CMD52响应失败,造成可以看到设备却扫不到WIFI07ddbc2c-09ee-4235-99e2-d392c0fdbab5-image.png 4e4e2033-09d7-44ab-b325-c6cdd7d6785b-image.png ff38167b-547a-4ace-b657-220772618d88-image.png ,尝试过降低sdc1的clk也是偶尔可以78731426-d56e-4b70-9228-e3ee47cc8a99-image.png

      whycan 1 Reply Last reply Reply Quote Share 0
      • whycan
        whycan晕哥 LV 9 @Jacky502 last edited by

        @jacky502

        先检查供电电压、电流、波纹,然后检查 WLAN_REGON引脚电平

        实在不行在 几个VCC并 10uF + 0.1uF 电容试一试。

        J 1 Reply Last reply Reply Quote Share 0
        • J
          Jacky502 LV 5 @whycan last edited by

          @whycan 经过查看发现wifi电源控制脚PE1在上电是有0.1v左右的电压,导致wifi电源瞬间打开然后关闭,此时SDIO在轮寻发送cmd指令,所以WIFI电源再次打开时偶尔出现cmd52响应失败,现在问题变成了不知道怎么将PE1开机的0.1v电压消除

          whycan 1 Reply Last reply Reply Quote Share 0
          • whycan
            whycan晕哥 LV 9 @Jacky502 last edited by

            @jacky502
            模块第7脚拉高了吗?

            1 Reply Last reply Reply Quote Share 0
            • 1 / 1
            • First post
              Last post

            Copyright © 2024 深圳全志在线有限公司 粤ICP备2021084185号 粤公网安备44030502007680号

            行为准则 | 用户协议 | 隐私权政策