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新买的rt809h飞线读EMMC显示timeout

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Post time: 2021-4-26 19:12:59
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请问问题出哪儿

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Post time: 2021-5-14 09:15:04
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芯片很多品牌和型号都兼容,国产的兼容性很差,如佰维,江波龙,海康等,闪迪,三星,东芝,海力士,金士顿,镁光等兼容性好,如果你经常更换EMMC,就会觉得很简单了,修一块板子更换EMMC十几次都正常,本人昨天修一台比亚迪元的原车中控大屏,核心板的EMMC坏了【通病】,反复更换了近十次才搞好,核心板500元左右,不信自己淘宝去查MX90-H-V0.1价格,一片SDIN7DU2-16G才20元左右,修理费800元,利润还是可观的,这些809H轻松搞定,不要怀疑这台编程器,17年入手的到现在从没让我失望过。

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Post time: 2021-5-3 08:41:19
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超时提示,如果是在正常机器上备份数据的话,就是你接线不对或不满足在线读写条件,故障机提示超时可能芯片挂了,拆下来用座子一验便知,本人换下来上百片EMMC大部分都是读写超时的。
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Post time: 2021-4-26 21:53:28
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我也不知道,前几天也遇到了同样的问题,几经折腾无果。后换板了。
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Post time: 2021-4-26 21:56:14
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首先确保点位正确,短接晶振到地同时断CLK电阻,线尽量短或者用屏蔽线
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Post time: 2021-5-10 17:59:28
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wuzhihui8888 2021-5-3 08:41
超时提示,如果是在正常机器上备份数据的话,就是你接线不对或不满足在线读写条件,故障机提示超时可能芯片挂了,拆下来用座子一验便知,本人换下来上百片EMMC大部分都是读写超时的。

EMMC常用的有那些型号  呀 师傅!!  容量相同的品牌不同 能不能代换
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Post time: 2021-5-11 10:28:50
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本来早该买一个RT809H,就怕不好使,所以一直犹豫,看来这个机器的确不好用,还是RT809F先用着再说。
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Post time: 2021-5-14 13:41:16
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wuzhihui8888 2021-5-14 09:15
芯片很多品牌和型号都兼容,国产的兼容性很差,如佰维,江波龙,海康等,闪迪,三星,东芝,海力士,金士顿 ...

比亚迪元有很多个版本,烧进去有的屏参不对,有的倒车无影像,

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拆一次就可以根据焊盘知道EMMC通讯电阻的功能点位了,第二次读写你还拆下来用座子?另外用官方软件写好引导然用U盘刷主程序就行了,你不会是每次都写EMMC备份吧?  Post time 2021-12-18 17:30
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Post time: 2021-5-14 14:26:33
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RT809H配上BGA153/169座子太好用了    座子最近买的  EMMC芯片植锡焊接也是最近自己学习的很好很不错感觉没那么难!
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