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memory

链接:https://pan.baidu.com/s/1tADvigD1xtOWqieJmcuPkA?pwd=awol
提取码:awol

memory

@wyljkl 在 100s的tina系统，怎么增加一颗ids表未支持的32M norflash？中说：

问题已经解决了，感谢

大佬分享一下？

memory

D1s可以实现 LCD + TV 双屏异显吗？

memory

&disp{
    disp_rotation_used       = <1>;/* 使能旋转功能 */
    degree0                  = <3>; /* X:screen index; 0:0 degree; 1:90 degree; 3:270 degree */
    fb0_width                = <1280>;/*fb 的长宽交换*/
    fb0_height               = <800>;
};

memory

62249702-9aef-4b3f-bdf0-ead755db0466-ea652dc4364bfb541a5e74e37255305.png

搞定搞定，谢谢。

memory

dd832767-58e9-48d8-b017-2ad5de591787-66b1d78b4357a86b23a1db4a8b16674.png

memory

https://xiph.org/ao/

libao: a cross platform audio library
Libao is a cross-platform audio library that allows programs to output audio using a simple API on a wide variety of platforms. It currently supports:

Null output (handy for testing without a sound device)
WAV files
AU files
RAW files
OSS (Open Sound System, used on Linux and FreeBSD)
ALSA (Advanced Linux Sound Architecture)
aRts (Analog RealTime Synth, used by KDE)
PulseAudio (next generation GNOME sound server)
esd (EsounD or Enlightened Sound Daemon)
Mac OS X
Windows (98 and later)
AIX
Sun/NetBSD/OpenBSD
IRIX
NAS (Network Audio Server)
RoarAudio (Modern, multi-OS, networked Sound System)
OpenBSD's sndio

Development code is at gitlab.xiph.org. Please report issues there.

memory

编译 ffplay.exe 需要依赖SDL2，所以要先编译SDL2。

memory

这样就在ubunt18可以生成带ffplay.exe的sdk了：

./configure --arch=x86 --target-os=mingw64 --cross-prefix=x86_64-w64-mingw32- --prefix=/mnt/hgfs/D/work/ffmpeg/ffmpeg_sdk_win64_shared --enable-shared --disable-static --enable-ffplay --enable-decoder=png

memory

编译SDL2：

tar xvf SDL2-2.0.14.tar.gz

CC=x86_64-w64-mingw32-gcc ./configure --prefix=/usr/x86_64-w64-mingw32 --host=x86_64-w64-mingw32

make install

memory

编译libpng：

tar xvf libpng-1.6.37.tar.xz

CC=x86_64-w64-mingw32-gcc ./configure --prefix=/usr/x86_64-w64-mingw32 --host=x86_64-w64-mingw32

make install

memory

下载zlib：
wget https://www.zlib.net/zlib-1.3.tar.gz

编译zlib：

CC=x86_64-w64-mingw32-gcc ./configure --prefix=/usr/x86_64-w64-mingw32 --static

参考：https://stackoverflow.com/questions/60582331/curl-https-not-working-after-cross-compilation

memory

48abaa33-eeef-44b0-9b53-953b3b350cf2-0dbad06fdcb8adf04fcd8e4ff6ff01f.png

ca04a482-54ea-4210-8e4e-2ad1f363ebdf-b7544f128be074e1f94dfeefb07a99d.png

memory

方案②，在ubuntu18.04使用mingw工具链编译：

ubunt18.04 编译安装 win32/win64 ffmpeg sdk:

sudo apt-get install git mingw-w64* -y

git clone git clone https://gitee.com/mirrors/ffmpeg -b release/6.0

编译win32版本：
./configure --arch=x86 --target-os=mingw32 --prefix=/opt/ffmpeg_install/ --cross-prefix=i686-w64-mingw32-

编译win64版本：
./configure --arch=x86 --target-os=mingw64 --prefix=/opt/ffmpeg_install/ --cross-prefix=x86_64-w64-mingw32-

memory

方案①：

https://blog.csdn.net/qq_38770502/article/details/116715809

MSYS2+mingw 编译 ffmpeg 在windows下完整过程

memory

确实是指针的图片问题！

memory

A133 android10 有概率进入安全模式，请问是什么原因呢？

memory

@tigger 在推荐一个好用开源的录屏软件 Captura 中说：

Captura-Portable.zip

这个录频软件确实好用！

memory

DYJFRD3EQ17HG4GMT@LU{I3.jpg

memory

请问Android10的WiFi网卡默认可以【使用设备MAC】吗？

memory

@lilazhou
现在是如何操作的呢？有代码吗？

memory

[   11.824379] si4754FmPowerUp
[   12.140733] si4754_GetPartInformation [0x80, 0x48, 0x37, 0x34, 0x30, 0x0, 0x0, 0x0,0x6 ] 
[   12.149960] This is si4755 ic  Chip Revision=0x48  ROM ID = 0x6 
[   12.257342] si4754 probe over
[   12.350683] vdc: Waited 0ms for vold
console:/ # [   72.172400] random: crng init done
[   72.176234] random: 7 urandom warning(s) missed due to ratelimiting
[   72.200098] init: Service 'exec 3 (/system/bin/vdc --wait cryptfs enablefilecrypto)' (pid 1753) exited with status 0 waiting took 59.882000 seconds

这个是怎么回事呢？

memory

我想调整eMMC的频率，又不想重新烧固件，请问可以实现吗？

memory

@memory 在 Android10 制作完全Root版本，A133平台验证通过中说：

// 添加下面代码至212行处，注意标点符号不要漏掉
{ 06755, AID_ROOT, AID_ROOT, 0, "system/bin/su" }

这里有个小坑，A133 Android10 SDK不要另外添加，找到这行修改即可！

memory

切换到源码编译目录

source build/envsetup.sh

lunch xxxxx

make update-api && make -j65536 && pack

memory

1.修改/aosp/system/extras/su/su.cpp

// 注释掉第83-84行
// uid_t current_uid = getuid();
// if (current_uid != AID_ROOT && current_uid != AID_SHELL) error(1, 0, "not allowed");

2.修改/aosp/system/core/libcutils/fs_config.cpp

// the following files have enhanced capabilities and ARE included
// in user builds.
// 添加下面代码至212行处，注意标点符号不要漏掉
{ 06755, AID_ROOT,      AID_ROOT,      0, "system/bin/su" }

修改/aosp/frameworks/base/core/jni/com_android_internal_os_Zygote.cpp

// 修改542行处，注释掉DropCapabilitiesBoundingSet方法体
static void DropCapabilitiesBoundingSet(fail_fn_t fail_fn) {
//   for (int i = 0; prctl(PR_CAPBSET_READ, i, 0, 0, 0) >= 0; i++) {;
//     if (prctl(PR_CAPBSET_DROP, i, 0, 0, 0) == -1) {
//       if (errno == EINVAL) {
//         ALOGE("prctl(PR_CAPBSET_DROP) failed with EINVAL. Please verify "
//               "your kernel is compiled with file capabilities support");
//       } else {
//         fail_fn(CREATE_ERROR("prctl(PR_CAPBSET_DROP, %d) failed: %s", i, strerror(errno)));
//       }
//     }
//   }
}

修改/aosp/system/core/adb/daemon/main.cpp

// 修改should_drop_capabilities_bounding_set返回false
static bool should_drop_capabilities_bounding_set() {
    if (ALLOW_ADBD_ROOT || is_device_unlocked()) {
        if (__android_log_is_debuggable()) {
            return false;
        }
    }
//    return true;
    return false;
}

修改/aosp/system/core/init/selinux.cpp

// 修改IsEnforcing方法返回false, 注释掉StatusFromCmdline方法
// EnforcingStatus StatusFromCmdline() {
//     EnforcingStatus status = SELINUX_ENFORCING;

//     import_kernel_cmdline(false,
//                           [&](const std::string& key, const std::string& value, bool in_qemu) {
//                               if (key == "androidboot.selinux" && value == "permissive") {
//                                   status = SELINUX_PERMISSIVE;
//                               }
//                           });

//     return status;
// }

bool IsEnforcing() {
    // if (ALLOW_PERMISSIVE_SELINUX) {
        // return StatusFromCmdline() == SELINUX_ENFORCING;
    // }
    // return true;
    return false;
}

memory

参考链接：

http://www.zhuoyue360.com/crack/34.html

https://www.jianshu.com/p/b7b0361aca34

memory

20a0d37c-1fb3-4b90-8bd6-cabe1c7bccd6-e549fbf8e5facbe217f9c07e4b20d32.png

memory

理论上没有问题。

memory

@whycan

13005db8-b34d-456f-a444-844bcc9a9dbc-4ded12a56dd48479ee6d4979a697b9e.jpg

太感谢了，全志这个电阻触摸如丝般流畅。

memory

memory

memory

焦点移到空白地方，一直按下enter按键，然后双击图标即可。

memory

请问液晶触摸屏的框贴合全贴合有什么区别？

memory

buildroot 怎么取消用户登录？

memory

e2ade25e-f858-425d-bb65-2b34f5cd6fc2-db3a51f62f995635ad37dd25786e62c.jpg

memory

@gb2047

百度网盘也可以。

memory

[    2.008659] sun8iw20-pinctrl 2000000.pinctrl: 2000000.pinctrl supply vcc-pc not found, using dummy regulator
[    2.020776] sunxi-mmc 4022000.sdmmc: SD/MMC/SDIO Host Controller Driver(v4.21 2021-11-18 10:02)
[    2.031023] sunxi-mmc 4022000.sdmmc: ***ctl-spec-caps*** 308
[    2.037642] sunxi-mmc 4022000.sdmmc: No vmmc regulator found
[    2.044048] sunxi-mmc 4022000.sdmmc: No vqmmc regulator found
[    2.050719] sunxi-mmc 4022000.sdmmc: No vdmmc regulator found
[    2.057284] sunxi-mmc 4022000.sdmmc: No vd33sw regulator found
[    2.063884] sunxi-mmc 4022000.sdmmc: No vd18sw regulator found
[    2.070515] sunxi-mmc 4022000.sdmmc: No vq33sw regulator found
[    2.077172] sunxi-mmc 4022000.sdmmc: No vq18sw regulator found
[    2.083815] sunxi-mmc 4022000.sdmmc: Cann't get pin bias hs pinstate,check if needed
[    2.093831] sunxi-mmc 4022000.sdmmc: sdc set ios:clk 0Hz bm PP pm UP vdd 21 width 1 timing LEGACY(SDR12) dt B
[    2.116537] sunxi-mmc 4022000.sdmmc: sdc set ios:clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    2.140987] sunxi-mmc 4022000.sdmmc: detmode:alway in(non removable)
[    2.148245] sunxi-mmc 4022000.sdmmc: sdc set ios:clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    2.163227] sunxi-mmc 4020000.sdmmc: SD/MMC/SDIO Host Controller Driver(v4.21 2021-11-18 10:02)
[    2.173853] sunxi-mmc 4020000.sdmmc: ***ctl-spec-caps*** 8
[    2.180140] sunxi-mmc 4022000.sdmmc: sdc set ios:clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    2.191923] sunxi-mmc 4020000.sdmmc: No vmmc regulator found
[    2.198447] sunxi-mmc 4020000.sdmmc: No vqmmc regulator found
[    2.204910] sunxi-mmc 4020000.sdmmc: No vdmmc regulator found
[    2.211879] sunxi-mmc 4020000.sdmmc: No vd33sw regulator found
[    2.218558] sunxi-mmc 4022000.sdmmc: sdc set ios:clk 400000Hz bm OD pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    2.230307] sunxi-mmc 4020000.sdmmc: No vd18sw regulator found
[    2.236953] sunxi-mmc 4020000.sdmmc: No vq33sw regulator found
[    2.243514] sunxi-mmc 4020000.sdmmc: No vq18sw regulator found
[    2.250912] sunxi-mmc 4020000.sdmmc: Got CD GPIO
[    2.256126] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.262978] sunxi-mmc 4022000.sdmmc: retry:start
[    2.268244] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000080
[    2.275322] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.282061] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.288895] sunxi-mmc 4022000.sdmmc: retry:start
[    2.294125] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000282
[    2.301259] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.308006] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.314829] sunxi-mmc 4022000.sdmmc: retry:start
[    2.320078] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000484
[    2.327179] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.333932] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.340746] sunxi-mmc 4022000.sdmmc: retry:start
[    2.345983] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000686
[    2.353088] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.359833] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.366664] sunxi-mmc 4022000.sdmmc: retry:start
[    2.371894] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000888
[    2.379027] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.385778] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.392569] sunxi-mmc 4022000.sdmmc: retry:start
[    2.397840] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000a8a
[    2.404906] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.411652] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.418402] random: fast init done
[    2.422298] sunxi-mmc 4022000.sdmmc: retry:start
[    2.427561] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000c8c
[    2.434653] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.441406] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.448224] sunxi-mmc 4022000.sdmmc: retry:start
[    2.453455] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00000e8e
[    2.460567] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.467320] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.474147] sunxi-mmc 4022000.sdmmc: retry:start
[    2.479450] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001090
[    2.486563] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.493316] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.500123] sunxi-mmc 4022000.sdmmc: retry:start
[    2.505345] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001292
[    2.512443] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.519196] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.525998] sunxi-mmc 4022000.sdmmc: retry:start
[    2.531256] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001494
[    2.538358] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.545109] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.551911] sunxi-mmc 4022000.sdmmc: retry:start
[    2.557169] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001696
[    2.564257] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.571005] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.577807] sunxi-mmc 4022000.sdmmc: retry:start
[    2.583050] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001898
[    2.590154] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.596905] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.603729] sunxi-mmc 4022000.sdmmc: retry:start
[    2.608977] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001a9a
[    2.616063] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.622812] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.629615] sunxi-mmc 4022000.sdmmc: retry:start
[    2.634858] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001c9c
[    2.641968] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.648720] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.655543] sunxi-mmc 4022000.sdmmc: retry:start
[    2.660790] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00001e9e
[    2.667914] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.674665] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.681493] sunxi-mmc 4022000.sdmmc: retry:start
[    2.686759] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000020a0
[    2.693820] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.700564] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.707393] sunxi-mmc 4022000.sdmmc: retry:start
[    2.712620] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000022a2
[    2.719751] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.726516] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.733334] sunxi-mmc 4022000.sdmmc: retry:start
[    2.738594] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000024a4
[    2.745653] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.752387] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.759210] sunxi-mmc 4022000.sdmmc: retry:start
[    2.764434] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000026a6
[    2.771551] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.778303] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.785105] sunxi-mmc 4022000.sdmmc: retry:start
[    2.790354] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000028a8
[    2.797453] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.804199] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.811002] sunxi-mmc 4022000.sdmmc: retry:start
[    2.816252] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00002aaa
[    2.823355] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.830102] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.836919] sunxi-mmc 4022000.sdmmc: retry:start
[    2.842145] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00002cac
[    2.849245] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.855990] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.862801] sunxi-mmc 4022000.sdmmc: retry:start
[    2.868078] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00002eae
[    2.875142] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.881882] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.888699] sunxi-mmc 4022000.sdmmc: retry:start
[    2.893924] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000030b0
[    2.901042] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.907787] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.914588] sunxi-mmc 4022000.sdmmc: retry:start
[    2.919863] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000032b2
[    2.926981] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.933736] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.940549] sunxi-mmc 4022000.sdmmc: retry:start
[    2.945779] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000034b4
[    2.952890] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.959632] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.966437] sunxi-mmc 4022000.sdmmc: retry:start
[    2.971685] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000036b6
[    2.978778] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    2.985524] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    2.992334] sunxi-mmc 4022000.sdmmc: retry:start
[    2.997588] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x000038b8
[    3.004677] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    3.011427] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    3.018242] sunxi-mmc 4022000.sdmmc: retry:start
[    3.023461] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00003aba
[    3.030559] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    3.037325] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    3.044139] sunxi-mmc 4022000.sdmmc: retry:start
[    3.049391] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00003cbc
[    3.056513] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    3.063268] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    3.070083] sunxi-mmc 4022000.sdmmc: retry:start
[    3.075301] sunxi-mmc 4022000.sdmmc: RETRY: REG_SAMP_DL: 0x00003ebe
[    3.082421] sunxi-mmc 4022000.sdmmc: *****retry:re-send cmd*****
[    3.089169] sunxi-mmc 4022000.sdmmc: smc 0 p2 err, cmd 1, RTO !!
[    3.095994] sunxi-mmc 4022000.sdmmc: retry:start
[    3.101240] sunxi-mmc 4022000.sdmmc: sunxi v4p5x/v4p6x retry give up!
[    3.108540] sunxi-mmc 4022000.sdmmc: retry:set phase failed or over retry times
[    3.116821] sunxi-mmc 4022000.sdmmc: retry:give up
[    3.122318] sunxi-mmc 4022000.sdmmc: sdc set ios:clk 0Hz bm PP pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B
[    3.133848] sunxi-mmc 4020000.sdmmc: set cd-gpios as 24M fail
[    3.140892] sunxi-mmc 4020000.sdmmc: sdc set ios:clk 0Hz bm PP pm UP vdd 21 width 1 timing LEGACY(SDR12) dt B
[    3.152449] sunxi-mmc 4020000.sdmmc: no vqmmc,Check if there is regulator
[    3.172822] sunxi-mmc 4020000.sdmmc: sdc set ios:clk 400000Hz bm PP pm ON vdd 21 width 1 timing LEGACY(SDR12) dt B
[    3.196828] sunxi-mmc 4020000.sdmmc: sdc set ios:clk 0Hz bm PP pm OFF vdd 0 width 1 timing LEGACY(SDR12) dt B
[    3.208146] sunxi-mmc 4020000.sdmmc: detmode:gpio irq

memory

@ddrddr
可能是换了晶圆厂或者封装厂，再披一层马甲标识符。

memory

[363]HELLO! BOOT0 is starting!
[366]BOOT0 commit : 88480af-dirty
[370]set pll start

memory

谢谢楼主，V853也可以！

memory

@yuzukitsuru
ffmpeg 可以直接用libcedarc 吗？

memory

echo 100000 > /proc/sys/vm/min_free_kbytes

memory

@ubuntu
是的，要开狗。

memory

@wl17761275256

V853&V853S_PINOUT_V1.0.xlsx

memory

@whycan
搞定了，谢谢。

memory

root@TinaLinux:/opt# jpegdecodedemo /tmp/1652337446.jpg 1 nv12
****************************************************************************
* This program shows how to decode a jpeg picture to yuv or rgb data
***************************************************************************
main line70 : 11111111111111111111111111111111111
main line83 : 11111111111111111111111111111111111

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tina_multimedia <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
tag   : tina3.5
branch: tina-dev
date  : Mon Jul 15 19:04:59 2019 +0800
Change-Id: I5f6c8a88d7b387a312b7744797a0d5f8ab07ee7a
-------------------------------------------------------------------------------
WARNING: cedarc <getSocIdString:1117>: cannot open /dev/sunxi_soc_info, it maybe ok!

INFO   : cedarc <VeInitialize:1307>: *** ic_version = 0x1301000010210,
WARNING: cedarc <AddVDPlugin:1574>: 1117 get local path: /usr/lib/
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_aacdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_alacdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_amrdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_apedec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_atrcdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_dsddec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_flacdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_g729dec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_mp3dec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_oggdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_opusdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_radec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_siprdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libaw_wavdec.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawh264.so
INFO   : cedarc <CedarPluginVDInit:79>: register h264 decoder success!
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawh265.so
INFO   : cedarc <CedarPluginVDInit:85>: register h265 decoder success!
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawmjpeg.so
INFO   : cedarc <CedarPluginVDInit:84>: register mjpeg decoder success!
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawmpeg2.so
INFO   : cedarc <CedarPluginVDInit:86>: register mpeg2 decoder success!
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawmpeg4base.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawmpeg4dx.so
INFO   : cedarc <CedarPluginVDInit:92>: register mpeg4dx decoder success!
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawmpeg4h263.so
INFO   : cedarc <CedarPluginVDInit:79>: register mpeg4H263 decoder success!
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawmpeg4normal.so
INFO   : cedarc <CedarPluginVDInit:90>: register mpeg4Normal decoder success!
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawrecorder.so
WARNING: cedarc <AddVDPluginSingle:1424>: Invalid plugin, CedarPluginVDInit not found.
WARNING: cedarc <AddVDPlugin:1584>:  1117 load so: /usr/lib/libawwmv3.so
INFO   : cedarc <CedarPluginVDInit:74>: register vc1 decoder success!
main line87 : 11111111111111111111111111111111111
main line95 : 11111111111111111111111111111111111
main line98 : 11111111111111111111111111111111111
main line118 : 11111111111111111111111111111111111
main line136 : 11111111111111111111111111111111111
srcBuf = 0xb4cb8008,srcBufLen = 27286594[47563.997123] VE: VE real_freq=576000000
[47563.997123]

JpegDecoderSetDataSource end
main line146 : 11111111111111111111111111111111111
INFO   : cedarc <log_set_level:43>: Set log level to 5 from /vendor/etc/cedarc.conf
ERROR  : cedarc <DebugCheckConfig:301>: now cedarc log level:5
WARNING: cedarc <getSocIdString:1117>: cannot open /dev/sunxi_soc_info, it maybe ok!

WARNING: cedarc <RequestVideoStreamBuffer:1274>: request stream buffer fail,                  0 bytes valid data in SBM[0], total buffer size is 2097152 bytes.
main line149 : 11111111111111111111111111111111111
JpegDecoderGetFrame fail
root@TinaLinux:/opt#

memory

@godzhou0909 在 f133安全固件打包失败中说：

@godzhou0909
请问有人知道DragonSN 哪里下载吗

烧号工具DragonSNv2.5.1.zip

memory

@whycanservice
搞定了，同事在sd nand的电源上面接了一个MOS管。

memory

[0]beign to init dram
[23]init dram ok


U-Boot 2014.07 (Feb 21 2023 - 22:13:47) Allwinner Technology

uboot commit : f1592db8c49aaedd6895f7e0f90caa123f0a3d5a

i2c_init: by cpux
[I2C-DEBUG]:i2c_set_clock() 354
[I2C-ERROR]:twi_send_clk_9pulse() 136 SDA is still Stuck Low, failed.
i2c_init ok
[2.854]pmbus:   ready
axp: get node[/soc/pmu0] error
axp_probe error
[2.861]PMU: cpux 720 Mhz,AXI=720 Mhz
PLL6=600 Mhz,AHB1=200 Mhz, APB1=100Mhz
DRAM:  32 MiB
[2.870]fdt addr: 0x809e6ee0
[2.872]gd->fdt_size: 0xc7c0
Relocation Offset is: 01520000
axp: get node[/soc/pmu0] error
int sunxi_dma_init---
irq enable
[2.940]flash init start
workmode = 16,storage type = 3
try card 1
[2.946][mmc]: mmc driver ver 2018-12-27 9:21:00
SUNXI SD/MMC: 1
[2.961][mmc]: ************Try SD card 1************
[mmc]: mmc 1 cmd 8 timeout, err 100
[mmc]: smc 1 err, cmd 8,  RTO
[mmc]: mmc 1 close bus gating and reset
[mmc]: mmc 1 mmc cmd 8 err 0x00000100
[2.979][mmc]: mmc send if cond failed
[mmc]: mmc 1 cmd 55 timeout, err 100
[mmc]: smc 1 err, cmd 55,  RTO
[mmc]: mmc 1 close bus gating and reset
[mmc]: mmc 1 mmc cmd 55 err 0x00000100
[2.996][mmc]: send app cmd failed
[2.999][mmc]: ************Try MMC card 1************
[mmc]: mmc 1 cmd 1 timeout, err 100
[mmc]: smc 1 err, cmd 1,  RTO
[mmc]: mmc 1 close bus gating and reset
[mmc]: mmc 1 mmc cmd 1 err 0x00000100
[3.021][mmc]: read op condition failed
[3.025][mmc]: mmc send op cond failed
Card did not respond to voltage select!
[3.032][mmc]: ************SD/MMC 1 init error!!!************
[3.037][mmc]: mmc_init_boot: mmc int fail
[3.041][mmc]: mmc_init: mmc init fail, err -17
MMC init failed
try card 0
[3.048][mmc]: mmc driver ver 2018-12-27 9:21:00
SUNXI SD/MMC: 1, SUNXI SD/MMC: 0
[3.066][mmc]: ************Try SD card 0************
[3.086][mmc]: host caps: 0x27
[3.088][mmc]: MID 22 PSN 7634e19e
[3.091][mmc]: PNM MK    -- 0x4d-4b-20-20-20
[3.095][mmc]: PRV 0.6
[3.097][mmc]: MDT m-1 y-2023
[3.100][mmc]: user capacity  : 118 MB
[3.104][mmc]: cache size 0 KB
[3.106][mmc]: cache ctl 0
[3.109][mmc]: SD/MMC 0 init OK!!!
[3.112][mmc]: End mmc_init_boot
read mbr copy[0] failed
read mbr copy[1] failed
read mbr copy[2] failed
read mbr copy[3] failed
[3.124]flash init end
[3.126]try to burn key
[3.129]inter uboot shell
Hit any key to stop autoboot:  0
work mode=0x10
run usb efex
delay time 2500
int sunxi_dma_init---
irq enable
sunxi_dma_install_int ok
usb init ok
set address 0x2
SUNXI_EFEX_ERASE_TAG
erase_flag = 0x1
FEX_CMD_fes_verify_status
FEX_CMD_fes_verify last err=0
the 0 mbr table is ok
the 1 mbr table is ok
the 2 mbr table is ok
the 3 mbr table is ok
*************MBR DUMP***************
total mbr part 8

part[0] name      :bootlogo
part[0] classname :DISK
part[0] addrlo    :0x2000
part[0] lenlo     :0x400
part[0] user_type :32768
part[0] keydata   :0
part[0] ro        :0

part[1] name      :env
part[1] classname :DISK
part[1] addrlo    :0x2400
part[1] lenlo     :0x200
part[1] user_type :32768
part[1] keydata   :0
part[1] ro        :0

part[2] name      :boot
part[2] classname :DISK
part[2] addrlo    :0x2600
part[2] lenlo     :0x4000
part[2] user_type :32768
part[2] keydata   :0
part[2] ro        :0

part[3] name      :rootfs
part[3] classname :DISK
part[3] addrlo    :0x6600
part[3] lenlo     :0xc800
part[3] user_type :32768
part[3] keydata   :0
part[3] ro        :0

part[4] name      :rootfs_data
part[4] classname :DISK
part[4] addrlo    :0x12e00
part[4] lenlo     :0xc800
part[4] user_type :32768
part[4] keydata   :0
part[4] ro        :0

part[5] name      :misc
part[5] classname :DISK
part[5] addrlo    :0x1f600
part[5] lenlo     :0x200
part[5] user_type :32768
part[5] keydata   :0
part[5] ro        :0

part[6] name      :private
part[6] classname :DISK
part[6] addrlo    :0x1f800
part[6] lenlo     :0x200
part[6] user_type :32768
part[6] keydata   :0
part[6] ro        :0

part[7] name      :UDISK
part[7] classname :DISK
part[7] addrlo    :0x1fa00
part[7] lenlo     :0x0
part[7] user_type :33024
part[7] keydata   :0
part[7] ro        :0

total part: 9
mbr 0, 2000, 8000
bootlogo 1, 400, 8000
env 2, 200, 8000
boot 3, 4000, 8000
rootfs 4, c800, 8000
rootfs_data 5, c800, 8000
misc 6, 200, 8000
private 7, 200, 8000
UDISK 8, 0, 8100
do need erase flash
sunxi_sprite_erase_flash, erase_flag=1
private part exist
the 0 mbr table is bad
the 1 mbr table is bad
the 2 mbr table is bad
the 3 mbr table is bad
the mbr on flash is bad
card0 download boot0
erase boot0, size:32k, write 0x00
erase env part
[6.664][mmc]: mmc_mmc_erase: sd card don't support erase
erase prat's head from sector 0x2400 to 0x2600
erase boot part
[6.730][mmc]: mmc_mmc_erase: sd card don't support erase
erase prat's head from sector 0x2600 to 0x6600
erase rootfs part
[8.776][mmc]: mmc_mmc_erase: sd card don't support erase
erase prat's head from sector 0x6600 to 0xa600
erase part's tail from sector 0xee00 to 0xfe00
erase rootfs_data part
[12.173][mmc]: mmc_mmc_erase: sd card don't support erase
erase prat's head from sector 0x12e00 to 0x16e00
erase part's tail from sector 0x1b600 to 0x1c600
erase misc part
[15.370][mmc]: mmc_mmc_erase: sd card don't support erase
erase prat's head from sector 0x1f600 to 0x1f800
erase private part
[15.445][mmc]: mmc_mmc_erase: sd card don't support erase
erase prat's head from sector 0x1f800 to 0x1fa00
erase UDISK part
sunxi_sprite_mmc_phyerase: @nr is 0, erase from @from to end
[15.516][mmc]: mmc_mmc_erase: sd card don't support erase
erase prat's head from sector 0x1fa00 to 0x23a00
card erase all
SUNXI_EFEX_MBR_TAG
mbr size = 0x10000
begin to write standard mbr
successed to write standard mbr
sunxi_sprite_verify_mbr_from_flash
the 0 mbr table is ok
the 1 mbr table is ok
the 2 mbr table is ok
the 3 mbr table is ok
*************MBR DUMP***************
total mbr part 8

part[0] name      :bootlogo
part[0] classname :DISK
part[0] addrlo    :0x2000
part[0] lenlo     :0x400
part[0] user_type :32768
part[0] keydata   :0
part[0] ro        :0

part[1] name      :env
part[1] classname :DISK
part[1] addrlo    :0x2400
part[1] lenlo     :0x200
part[1] user_type :32768
part[1] keydata   :0
part[1] ro        :0

part[2] name      :boot
part[2] classname :DISK
part[2] addrlo    :0x2600
part[2] lenlo     :0x4000
part[2] user_type :32768
part[2] keydata   :0
part[2] ro        :0

part[3] name      :rootfs
part[3] classname :DISK
part[3] addrlo    :0x6600
part[3] lenlo     :0xc800
part[3] user_type :32768
part[3] keydata   :0
part[3] ro        :0

part[4] name      :rootfs_data
part[4] classname :DISK
part[4] addrlo    :0x12e00
part[4] lenlo     :0xc800
part[4] user_type :32768
part[4] keydata   :0
part[4] ro        :0

part[5] name      :misc
part[5] classname :DISK
part[5] addrlo    :0x1f600
part[5] lenlo     :0x200
part[5] user_type :32768
part[5] keydata   :0
part[5] ro        :0

part[6] name      :private
part[6] classname :DISK
part[6] addrlo    :0x1f800
part[6] lenlo     :0x200
part[6] user_type :32768
part[6] keydata   :0
part[6] ro        :0

part[7] name      :UDISK
part[7] classname :DISK
part[7] addrlo    :0x1fa00
part[7] lenlo     :0x0
part[7] user_type :33024
part[7] keydata   :0
part[7] ro        :0

FEX_CMD_fes_verify_status
FEX_CMD_fes_verify last err=0
FEX_CMD_fes_verify_value, start 0x2000, size high 0x0:low 0x4b036
FEX_CMD_fes_verify_value 0x60b4446e
FEX_CMD_fes_verify_value, start 0x2400, size high 0x0:low 0x20000
FEX_CMD_fes_verify_value 0xd0d646c3
FEX_CMD_fes_verify_value, start 0x2600, size high 0x0:low 0x264a10
FEX_CMD_fes_verify_value 0xf5d8bccd
FEX_CMD_fes_verify_value, start 0x6600, size high 0x0:low 0x5e5000
FEX_CMD_fes_verify_value 0xbef15eb
bootfile_mode=4
SUNXI_EFEX_BOOT1_TAG
boot1 size = 0xbc000
uboot_pkg magic 0x89119800
uboot size = 0xbc000
storage type = 1
mmc down uboot
uboot_pkg magic 0x89119800
FEX_CMD_fes_verify_status
FEX_CMD_fes_verify last err=0
bootfile_mode=4
SUNXI_EFEX_BOOT0_TAG
boot0 size = 0x8000
production_media:1!
[25.429][mmc]: write mmc info ok
dram para[0] = ea00018e
dram para[1] = 6f6f6275
dram para[2] = 74
dram para[3] = a7698bf5
dram para[4] = 4000
dram para[5] = a4000
dram para[6] = a4000
dram para[7] = 2e302e33
dram para[8] = 30
dram para[9] = 2e302e31
dram para[10] = 30
dram para[11] = 80800000
dram para[12] = 80000000
dram para[13] = 0
dram para[14] = 0
dram para[15] = 0
dram para[16] = 0
dram para[17] = 0
dram para[18] = 0
dram para[19] = 0
dram para[20] = 0
dram para[21] = 0
dram para[22] = 0
dram para[23] = 0
dram para[24] = 0
dram para[25] = 0
dram para[26] = 0
dram para[27] = 0
dram para[28] = 0
dram para[29] = 0
dram para[30] = 0
dram para[31] = 0
storage type = 1
card0 download boot0

正常是这样的.

memory

[0]beign to init dram
[23]init dram ok


U-Boot 2014.07 (Feb 21 2023 - 22:13:47) Allwinner Technology

uboot commit : f1592db8c49aaedd6895f7e0f90caa123f0a3d5a

i2c_init: by cpux
[I2C-DEBUG]:i2c_set_clock() 354
[I2C-ERROR]:twi_send_clk_9pulse() 136 SDA is still Stuck Low, failed.
i2c_init ok
[2.859]pmbus:   ready
axp: get node[/soc/pmu0] error
axp_probe error
[2.865]PMU: cpux 720 Mhz,AXI=720 Mhz
PLL6=600 Mhz,AHB1=200 Mhz, APB1=100Mhz
DRAM:  32 MiB
[2.875]fdt addr: 0x809e6ee0
[2.877]gd->fdt_size: 0xc7c0
Relocation Offset is: 01520000
axp: get node[/soc/pmu0] error
int sunxi_dma_init---
irq enable
[2.945]flash init start
workmode = 16,storage type = 3
try card 1
[2.951][mmc]: mmc driver ver 2018-12-27 9:21:00
SUNXI SD/MMC: 1
[2.966][mmc]: ************Try SD card 1************
[mmc]: mmc 1 cmd 8 timeout, err 100
[mmc]: smc 1 err, cmd 8,  RTO
[mmc]: mmc 1 close bus gating and reset
[mmc]: mmc 1 mmc cmd 8 err 0x00000100
[2.984][mmc]: mmc send if cond failed
[mmc]: mmc 1 cmd 55 timeout, err 100
[mmc]: smc 1 err, cmd 55,  RTO
[mmc]: mmc 1 close bus gating and reset
[mmc]: mmc 1 mmc cmd 55 err 0x00000100
[3.002][mmc]: send app cmd failed
[3.005][mmc]: ************Try MMC card 1************
[mmc]: mmc 1 cmd 1 timeout, err 100
[mmc]: smc 1 err, cmd 1,  RTO
[mmc]: mmc 1 close bus gating and reset
[mmc]: mmc 1 mmc cmd 1 err 0x00000100
[3.026][mmc]: read op condition failed
[3.030][mmc]: mmc send op cond failed
Card did not respond to voltage select!
[3.037][mmc]: ************SD/MMC 1 init error!!!************
[3.042][mmc]: mmc_init_boot: mmc int fail
[3.046][mmc]: mmc_init: mmc init fail, err -17
MMC init failed
try card 0
[3.053][mmc]: mmc driver ver 2018-12-27 9:21:00
SUNXI SD/MMC: 1, SUNXI SD/MMC: 0
[3.268][mmc]: mmc 0 update clk failed
[3.271][mmc]: [mmc]: mmc 0 update clock failed
[3.276][mmc]: mmc 0 Found fatal err,so no send cmd
[3.280][mmc]: go idle failed
[3.283][mmc]: mmc go idle error
[3.286][mmc]: mmc_init_boot: mmc int fail
[3.290][mmc]: mmc_init: mmc init fail, err -1
MMC init failed
not found SDC
try emmc fail
[3.298]NAND_UbootProbe start...
[3.301]NB1 : enter phy init
[3.304]nand_physic_init
[3.307]nand0: get node offset error
[3.310]init nctri NAND PIORequest error!
[3.314]nand_physic_init, init nctri error
[3.317]nand_physic_init init_parameter error
[3.322]nand_physic_init error -1
[3.325]SpiNandHwInit: Start Nand Hardware initializing Nov  4 2018 13:15:18.....
[3.332]uboot: nand version: 3 6019 20181104 1256
[3.343]request spi gpio  ok!
int sunxi_dma_init---
irq enable
[3.349]uboot nand_request_tx_dma: reqest genernal dma for nand success, 0x81db89b4
[3.356]request general tx dma channel ok!
[3.360]uboot nand_request_tx_dma: reqest genernal dma for nand success, 0x81db89d4
[3.368]request general rx dma channel ok!
_change_spic_clk: 0x01c05024=0x1009
_change_spic_clk_v1: mclk=0xc8
_change_spic_clk: 0x01c05024=0x1004
_change_spic_clk_v1: mclk=0xc8
[3.383]SPI nand ID: ffffffff ffffffff
[3.387]SPI nand ID: ffffffff ffffffff
[3.390]_SearchNandArchi fail
[3.393][ERR]SpiNandHwInit: SCN_AnalyzeNandSystem() failed!
[3.398]SpiNandHwInit: End Nand Hardware initializing ..... FAIL!
[3.404]NB1 : nand phy init fail
[3.407]NB1 : enter phy Exit
nand release dma:81db89b4
nand release dma:0
sunxi dma exit
[3.415]NAND_UbootProbe end: 0xffffffff
try nand fail
flash size =0x4000 sectors
sunxi spinor is initing...int sunxi_dma_init---
irq enable
sunxi_dma_install_int ok
sunxi_dma_install_int ok
OK
spinor id:0xffffff
spi_freq = 40000000
spinor id is ffffff
try nor successed
read mbr copy[0] failed
read mbr copy[1] failed
read mbr copy[2] failed
read mbr copy[3] failed
[3.449]flash init end
[3.451]try to burn key
[3.454]inter uboot shell
Hit any key to stop autoboot:  0
work mode=0x10
run usb efex
delay time 2500
sunxi_dma_install_int ok
usb init ok
set address 0xa
SUNXI_EFEX_ERASE_TAG
erase_flag = 0x1
FEX_CMD_fes_verify_status
FEX_CMD_fes_verify last err=0

memory

@whycan

还真是的，RTL8723DS模组6、7引脚还真都接上拉了，把电阻干掉就正常了。

memory

64f21554-030d-49e0-b04d-062d26452c86-f95a6ead7b15d67e6a440b6f01fe5cc.png

root@dragonboard:~# insmod /lib/modules/4.9.170/8723ds.ko && mkdir /etc/wifi/wpa
_supplicant/sockets -p && touch /etc/wifi/wpa_supplicant/wpa_supplicant.conf &&
wpa_supplicant -iwlan0 -D nl80211 -c/etc/wifi/wpa_supplicant/wpa_supplicant.conf
 -d   -B
[   60.874406] RTW: module init start
[   60.878260] RTW: rtl8723ds v5.6.8_34158.20190625_COEX20190530-3030
[   60.885207] RTW: build time: Mar 21 2023 20:38:21
[   60.890499] RTW: rtl8723ds BT-Coex version = COEX20190530-3030
[   60.890703] RTW: rtw_inetaddr_notifier_register
[   60.902284] RTW: == SDIO Card Info ==
[   60.906434] RTW:   clock: 50000000 Hz
[   60.910551] RTW:   timing spec: sd high-speed
[   60.915461] RTW:   sd3_bus_mode: FALSE
[   60.919673] RTW: ================
[   60.923399] RTW: CHIP TYPE: RTL8723D
[   60.927771] RTW: rtw_hal_config_rftype RF_Type is 0 TotalTxPath is 1
[   60.934957] RTW: Chip Version Info: CHIP_8723D_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
[   60.945965] RTW: SetHwReg: bMacPwrCtrlOn=1
[   60.950934] RTW: sdio_power_on_check: val_mix:0x0002063f, res:0x0002063f
[   60.958468] RTW: sdio_power_on_check: 0x100 the result of cmd52 and cmd53 is the same.
[   60.967452] RTW: sdio_power_on_check: 0x1B8 test Pass.
[   60.973292] RTW: _InitPowerOn_8723DS: Test Mode
[   60.978414] RTW: _InitPowerOn_8723DS: LDO Mode
[   60.983435] RTW: ReadAdapterInfo8723DS, 0x4e=0x82
[   60.988785] RTW: EEPROM type is E-FUSE
[   60.993265] RTW: hal_EfuseSwitchToBank: Efuse switch bank to 0
[   61.019611] RTW: hal_ReadEFuse_WiFi: data end at address=0x9b
[   61.026110] RTW: HW EFUSE
[   61.029079] RTW: 0x000: 29 81 00 7C  E1 88 07 00  A0 04 EC 35  12 C0 A3 D8
[   61.037164] RTW: 0x010: 28 28 28 28  28 28 28 28  28 28 28 02  FF FF FF FF
[   61.045260] RTW: 0x020: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.053345] RTW: 0x030: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.061419] RTW: 0x040: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.069499] RTW: 0x050: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.077570] RTW: 0x060: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.085683] RTW: 0x070: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.093758] RTW: 0x080: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.101834] RTW: 0x090: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.109897] RTW: 0x0A0: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.117959] RTW: 0x0B0: FF FF FF FF  FF FF FF FF  20 32 24 00  00 00 FF FF
[   61.126067] RTW: 0x0C0: FF 29 20 11  00 00 00 FF  00 FF 11 FF  FF FF FF FF
[   61.134139] RTW: 0x0D0: 3E 10 01 12  23 FF FF FF  20 04 4C 02  23 D7 21 02
[   61.142215] RTW: 0x0E0: 0C 00 22 04  00 08 00 32  FF 21 02 0C  00 22 2A 01
[   61.150277] RTW: 0x0F0: 01 00 00 00  00 00 00 00  00 00 00 00  02 00 FF FF
[   61.158344] RTW: 0x100: 00 00 00 00  00 00 00 00  00 00 00 00  00 00 00 00
[   61.166452] RTW: 0x110: 00 EB 00 6E  01 00 00 00  00 FF 94 A4  08 D8 22 0A
[   61.174533] RTW: 0x120: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.182604] RTW: 0x130: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.190683] RTW: 0x140: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.198754] RTW: 0x150: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.206867] RTW: 0x160: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.214931] RTW: 0x170: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.223013] RTW: 0x180: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.231085] RTW: 0x190: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.239158] RTW: 0x1A0: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.247259] RTW: 0x1B0: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.255341] RTW: 0x1C0: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.263417] RTW: 0x1D0: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.271493] RTW: 0x1E0: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF
[   61.279563] RTW: 0x1F0: FF FF FF FF  FF FF FF FF  FF FF FF FF  FF FF FF FF

memory

@tigger 在 V3s + RTL8723DS tina 执行 bt_test 蓝牙sink程序，发现本机声卡不出声，并且报以下错误 Couldn't open PCM:default 中说：

网上抄来一个 /etc/asound.conf 搞定：
pcm.!default {
type hw
card 0
}

ctl.!default {
type hw
card 0
}

D1s也遇到同样的问题，参考这个搞定！

memory

bfd533a6-25fa-4510-9a8a-0a2c3bac01d4-65778dd86b6fb47d09cc0075ab17943.jpg

D1s 驱动 ILI9327 i80显示屏，调试中．

memory

47374699-d407-4210-bb31-22f8f5e2f054-9b782158746fbf333efa92fb3eb7398.jpg
飞到眼花缭乱

memory

@fantasya 在 T113 Tina 自带的LVGL8 G2D Test运行报错中说：

Segmentation fault

我的也出现一样的问题，请问楼主解决了吗？

memory

@uuuuid 在换了四台电脑，终于让我悟出来NXP GUI Guider 为啥不能正常显示出设计界面的原因了中说：

装上 jre-8u341-windows-x64.exe 之后，一切就正常了。

成功搞定！

memory

同一个固件，同一个板子，左边NAND FLASH有一个bad block，就炸了，是不是因为坏块在rootfs分区？

memory

@aozima

给大佬点赞，改成10K之后，LED没那么刺眼了，与全志官方的V853开发板通讯也正常了．

memory

288884ca-5c54-4b77-b0b4-58876ae57c87-6027ecf9522a9825d53c76c97c16c36.jpg

发现淘宝买的这CH340N模块不好使，很多板子都没法收到信息，但是led使劲闪，是不是电阻太大？

memory

@zznzzn
感谢楼主分享。

不过我没有看出来为什么要这么修改，用UART自带的RTS控制MAX485的EN引脚不可以吗？

memory

@dream

请教tplayerdemo 怎么按视频长宽比例显示，默认是全屏显示。

memory

@jr_online 在请问如何用命令行调整背光亮度？中说：

mount -t debugfs none /sys/kernel/debug;
cd /sys/kernel/debug/dispdbg;

#背光0
echo lcd0 > name; echo setbl > command; echo 0 > param; echo 1 > start

#背光255
echo lcd0 > name; echo setbl > command; echo 255 > param; echo 1 > start

A133 调整背光成功。

memory

@dream
谢谢，可以了。

memory

添加文件： ~/.asoundrc：

pcm.!default {
        type hw
        card 0
}

ctl.!default {
        type hw
        card 0
}

搞定了。

memory

DEBUG  : awplayer <CdxPluginLoadList:221>: have config 0 entry
DEBUG  : awplayer <CdxPluginLoadList:222>: start to open plugin lib
DEBUG  : awplayer <AwStreamInit:107>: aw stream init...
DEBUG  : awplayer <AwStreamInit:150>: stream list size:8
INFO   : awplayer <AwParserInit:441>: aw parser init...
DEBUG  : awplayer <AwParserInit:560>: aw parser size:17

******************************************************************************************
* This program implements a simple player, you can type commands to control the player.
* To show what commands supported, type 'help'.
******************************************************************************************
argc = 2,argv[0] = tplayerdemo,argv[1] = /mnt/UDISK/bhsj.mp4
may be is one file:cut down suffix is:.mp4
find the matched type:.mp4

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tina_multimedia <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
tag   : tina3.5
branch: tina-dev
date  : Mon Jul 15 19:04:59 2019 +0800
Change-Id: I5f6c8a88d7b387a312b7744797a0d5f8ab07ee7a
-------------------------------------------------------------------------------
DEBUG : tplayer <TPlayerCreate:198>: TPlayerCreate
DEBUG  : awplayer <XPlayerCreate:236>: XPlayerCreate.
DEBUG  : awplayer <LogVersionInfo:34>:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CedarX <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
tag   : CedarX-2.8.0
branch: master
commit: 967535b8ff6a073cb4f38e85a4ae5fa6008014d8
date  : Mon, 15 May 2017 01:30:22 +0000 (09:30 +0800)
author:
----------------------------------------------------------------------

DEBUG : tsoundcontrol <TSoundDeviceCreate:147>: TinaSoundDeviceInit()
DEBUG : tsoundcontrol <openSoundDevice:17>: openSoundDevice() in default style
ALSA lib pcm_direct.c:1824:(_snd_pcm_direct_get_slave_ipc_offset) Invalid value for card
ERROR : tsoundcontrol <openSoundDevice:24>: open audio device failed:No such file or directory, errno = 2
DEBUG : tsoundcontrol <TSoundDeviceCreate:167>: open sound device fail
ERROR : tplayer <TPlayerCreate:230>: sound device create fail,mPrivateData->mSoundCtrl is null
WARNING: awplayer <XPlayerDestroy:341>: XPlayerDestroy
WARNING: awplayer <XPlayerReset:991>: reset...
DEBUG  : awplayer <PlayerStop:951>: ****** PlayerStop
ERROR  : awplayer <PlayerStop:956>: invalid stop operation, player already in stopped status.
can not create tplayer, quit.
root@TinaLinux:/#

memory

大约是从那些不开源的 so 文件里面来的。

memory

收摊，不搞了，可能是Android 10的bug．

memory

USB摄像头设备是可以检测到的

memory

[  857.588025] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device connect
[  857.816669] usb 1-1: new high-speed USB device number 5 using sunxi-ehci
[  858.459117] uvcvideo: Found UVC 1.00 device HD Webcam C615 (046d:082c)
[  858.481164] uvcvideo 1-1:1.2: Entity type for entity Extension 5 was not initialized!
[  858.490158] uvcvideo 1-1:1.2: Entity type for entity Processing 2 was not initialized!
[  858.499225] uvcvideo 1-1:1.2: Entity type for entity Camera 1 was not initialized!
[  858.507814] uvcvideo 1-1:1.2: Entity type for entity Extension 6 was not initialized!
[  858.516687] uvcvideo 1-1:1.2: Entity type for entity Extension 7 was not initialized!
[  858.525548] uvcvideo 1-1:1.2: Entity type for entity Extension 8 was not initialized!
[  858.535914] input: HD Webcam C615 as /devices/platform/soc/5200000.ehci1-controller/usb1/1-1/1-1:1.2/input/input7
[  867.189097] type=1400 audit(1661238994.534:336): avc: denied { getattr } for comm="m.webview_shell" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c59,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=org.chromium.webview_shell
[  867.218001] type=1400 audit(1661239007.918:337): avc: denied { dac_override } for comm="irqbalance" capability=1 scontext=u:r:shell:s0 tcontext=u:r:shell:s0 tclass=capability permissive=1
[  908.161265] type=1400 audit(1661239007.918:337): avc: denied { dac_override } for comm="irqbalance" capability=1 scontext=u:r:shell:s0 tcontext=u:r:shell:s0 tclass=capability permissive=1
[  908.181605] type=1400 audit(1661239048.891:338): avc: denied { open } for comm="droid.usbcamera" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c71,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=com.shenyaocn.android.usbcamera
[  908.210824] type=1400 audit(1661239048.891:338): avc: denied { open } for comm="droid.usbcamera" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c71,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=com.shenyaocn.android.usbcamera
[  908.240915] type=1400 audit(1661239048.891:339): avc: denied { getattr } for comm="droid.usbcamera" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c71,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=com.shenyaocn.android.usbcamera
[  913.804113] type=1400 audit(1661239048.891:339): avc: denied { getattr } for comm="droid.usbcamera" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c71,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=com.shenyaocn.android.usbcamera
[  913.834604] type=1400 audit(1661239054.534:340): avc: denied { open } for comm="m.webview_shell" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c59,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=org.chromium.webview_shell
[  913.863385] type=1400 audit(1661239054.534:340): avc: denied { open } for comm="m.webview_shell" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c59,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=org.chromium.webview_shell
[  913.893175] type=1400 audit(1661239054.534:341): avc: denied { getattr } for comm="m.webview_shell" path="/proc/vmstat" dev="proc" ino=4026532021 scontext=u:r:untrusted_app_27:s0:c59,c256,c512,c768 tcontext=u:object_r:proc_vmstat:s0 tclass=file permissive=1 app=org.chromium.webview_shell

再看了一下日志，貌似还是权限问题．

memory

console:/ # [  369.196274] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device connect
[  369.204982] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device disconnect
[  369.280957] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device connect
[  369.556709] usb 1-1: new high-speed USB device number 5 using sunxi-ehci
[  369.921976] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825)
[  370.020356] uvcvideo 1-1:1.0: Entity type for entity Extension 4 was not initialized!
[  370.029242] uvcvideo 1-1:1.0: Entity type for entity Extension 6 was not initialized!
[  370.038105] uvcvideo 1-1:1.0: Entity type for entity Extension 7 was not initialized!
[  370.046961] uvcvideo 1-1:1.0: Entity type for entity Processing 2 was not initialized!
[  370.055931] uvcvideo 1-1:1.0: Entity type for entity Extension 3 was not initialized!
[  370.064788] uvcvideo 1-1:1.0: Entity type for entity Camera 1 was not initialized!
[  370.074708] input: UVC Camera (046d:0825) as /devices/platform/soc/5200000.ehci1-controller/usb1/1-1/1-1:1.0/input/input7
[  371.431060] usb 1-1: set resolution quirk: cval->res = 384

console:/ # ls /dev/video0 -l
crwxrwxrwx 1 camera camera 81,  14 2022-08-23 14:50 /dev/video0
console:/ #

第二个摄像头也不行

memory

console:/ #
console:/ # [   51.065683] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device connect
[   51.287297] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device disconnect
[   51.296303] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device connect
[   51.305433] usb 1-1: new high-speed USB device number 2 using sunxi-ehci
[   51.643945] usb 1-1: device descriptor read/64, error -71
[   52.130666] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device disconnect
[   52.139635] sunxi-ehci 5200000.ehci1-controller: ehci_irq: highspeed device connect
[   52.165187] usb 1-1: 1:1: cannot set freq 16000 to ep 0x86
[   52.179819] usb 1-1: 1:2: cannot set freq 24000 to ep 0x86
[   52.194463] usb 1-1: 1:3: cannot set freq 32000 to ep 0x86
[   52.209099] usb 1-1: 1:4: cannot set freq 48000 to ep 0x86
[   52.261975] usb 1-1: 5:0: cannot get min/max values for control 2 (id 5)
[   52.274606] uvcvideo: Found UVC 1.00 device HD Webcam C615 (046d:082c)
[   52.290675] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[   52.304438] uvcvideo: Failed to query (129) UVC probe control : -71 (exp. 26).
[   52.314829] uvcvideo 1-1:1.2: Entity type for entity Extension 5 was not initialized!
[   52.323704] uvcvideo 1-1:1.2: Entity type for entity Processing 2 was not initialized!
[   52.332705] uvcvideo 1-1:1.2: Entity type for entity Camera 1 was not initialized!
[   52.341254] uvcvideo 1-1:1.2: Entity type for entity Extension 6 was not initialized!
[   52.350132] uvcvideo 1-1:1.2: Entity type for entity Extension 7 was not initialized!
[   52.358975] uvcvideo 1-1:1.2: Entity type for entity Extension 8 was not initialized!
[   52.369065] input: HD Webcam C615 as /devices/platform/soc/5200000.ehci1-controller/usb1/1-1/1-1:1.2/input/input4
[   52.382455] usb 1-1: USB disconnect, device number 2
[   52.680196] usb 1-1: new high-speed USB device number 3 using sunxi-ehci
[   53.298306] uvcvideo: Found UVC 1.00 device HD Webcam C615 (046d:082c)
[   53.319567] uvcvideo 1-1:1.2: Entity type for entity Extension 5 was not initialized!
[   53.328459] uvcvideo 1-1:1.2: Entity type for entity Processing 2 was not initialized!
[   53.337409] uvcvideo 1-1:1.2: Entity type for entity Camera 1 was not initialized!
[   53.345989] uvcvideo 1-1:1.2: Entity type for entity Extension 6 was not initialized!
[   53.354840] uvcvideo 1-1:1.2: Entity type for entity Extension 7 was not initialized!
[   53.363694] uvcvideo 1-1:1.2: Entity type for entity Extension 8 was not initialized!
[   53.374086] input: HD Webcam C615 as /devices/platform/soc/5200000.ehci1-controller/usb1/1-1/1-1:1.2/input/input5

第一个摄像头挂了

console:/ # ls /dev/video0 -l
crwxrwxrwx 1 camera camera 81,  14 2022-08-23 14:45 /dev/video0

memory

照晕哥用这个视频：　没有网络，也通过rz命令可以串口z-modem协议传输文件；没有开发板，在x86电脑上面一样可以跑arm程序。　测试没有问题的，但是板子上面就是跑不了．

memory

error while loading shared libraries: libQt5Core.so.5: cannot open shared object file: No such file or directory

实际上文件都有, 而且用 qemu + chroot 在电脑模拟运行正常

memory

我看摄像头拔插的时候，日志都正常．

memory

/dev/video0 权限正常

APP权限也都正常

但是几个APP都不能使用.

memory

https://search.bilibili.com/all?keyword=espnow

https://search.bilibili.com/all?keyword=esp-now

https://www.bilibili.com/video/BV1qT411L7WX

https://www.bilibili.com/video/BV1sB4y1e799

memory

https://www.espressif.com.cn/en/products/software/esp-now/overview

ESP-NOW is yet another protocol developed by Espressif, which enables multiple devices to communicate with one another without using Wi-Fi. The protocol is similar to the low-power 2.4GHz wireless connectivity that is often deployed in wireless mouses. So, the pairing between devices is needed prior to their communication. After the pairing is done, the connection is secure and peer-to-peer, with no handshake being required.

ESP-NOW 是由 Espressif 开发的另一种协议，它使多个设备能够在不使用 Wi-Fi 的情况下相互通信。该协议类似于无线鼠标中经常部署的低功耗 2.4GHz 无线连接。因此，设备之间的配对需要在它们通信之前进行。配对完成后，连接是安全且点对点的，无需握手。