近期在做一个类似ipcamera需求产品的技术选型,所以买了一块海思ipcamera的板子,难道板子后,使用上碰到了一些问题,毕竟是一个新平台,所以需要足够的耐心,不然过程中经常出现的卡壳问题,放一放就想明白了,好事多磨难,重要是不能放弃!
环境搭建参考:https://ost.51cto.com/posts/2627
1、程序烧录,最开始总是烧录失败,后来确定是HiTool.exe的版本不一样,烧录不上,一定要找与开发板配套的Hitool版本!
分区表文件,这个需要跟芯片的flash大小对应上:
<?xml version="1.0" encoding="GB2312" ?> <Partition_Info ProgrammerFile=""> <Part Sel="1" PartitionName="fastboot" FlashType="spi" FileSystem="none" Start="0" Length="1M" SelectFile="u-boot-hi3518ev300.bin"/> <Part Sel="1" PartitionName="kernel" FlashType="spi" FileSystem="none" Start="1M" Length="6M" SelectFile="OHOS_Image.bin"/> <Part Sel="1" PartitionName="rootfs" FlashType="spi" FileSystem="none" Start="7M" Length="8M" SelectFile="rootfs.img"/> <Part Sel="1" PartitionName="userfs" FlashType="spi" FileSystem="none" Start="15M" Length="1M" SelectFile="userfs.img"/> </Partition_Info>
串口fastboot擦除,根据提示上电单板(已上电状态需要重新下电后再上电)
USB口程序烧写
启动uboot参数配置:
2、编译环境搭建;
参考:https://www.bookstack.cn/read/openharmony-1.0-zh-cn/quick-start-%E6%90%AD%E5%BB%BA%E7%8E%AF%E5%A2%83-2.md
用虚拟机,按照文档每一步操作,环境搭建起来还比较顺利,并没有碰到特别的问题!
3、文档支持;
https://www.bookstack.cn/read/openharmony-1.0-zh-cn/
4、生态及问题解决;
学习入门资料不少,像harmonyos基金会推出的视频,认真学习,可以很快熟悉liteos的架构;
以下三个问题只能逐步摸索解决了,互联网上碰到类似问题的解决思路还不是很多,光靠baidu解决还比较难!
SD卡自动启动挂载失败,手动挂载成功:
[Init] ****/****/****/****/OpenHarmony/****/****/3/OpenHarmony 1.0/debug [ERR]Failed to find block driver /dev/mmcblk0 [Init] DoMount, failed for vfat /dev/mmcblk0 /sdcard rw,umask=000, err -1. [ERR]Failed to find block driver /dev/mmcblk1 [Init] DoMount, failed for vfat /dev/mmcblk1 /sdcard rw,umask=000, err -1. [Init] start service shell succeed, pid 3. OHOS #[Init] start service apphilogcat succeed, pid 4. [ERR]vfs_jffs_ioctl NOT SUPPORT [ERR]vfs_jffs_ioctl NOT SUPPORT “mount -t vfat /dev/mmcblk0 /mnt” 失败 “mount -t vfat /dev/mmcblk0p1 /mnt” 成功 OHOS #mount -t vfat /dev/mmcblk0p1 /sdcard [ERR]Failed to find file system /sdcard mount error: No such device OHOS #disk_init : register /dev/mmcblk0 ok! DiskAddPart : register /dev/mmcblk0p0 ok! OHOS #mount /dev/mmcblk0p0 /sdcard vfat mount ok
wifi初始化配置;
[DISCOVERY] ioctl fail [DISCOVERY] fail to get eth Ip, tring to get wifi Ip. 01-01 00:00:12.800 6 29 I 01800/Samgr: Goto next boot step failed! errno:-9 01-01 00:00:12.835 5 23 I 01800/Samgr: Create proxy[0x26514db0]<bundle_daemon, (null), 30, 0> 01-01 00:00:12.835 6 29 I 01100/bundle_deamon: BundleDaemon::Invoke(102): bundle_daemon invoke start 8[DISCOVERY] ioctl fail [DISCOVERY] fail to get eth Ip, tring to get wifi Ip. 01-01 00:00:12.838 5 23 E 00000/(null): ScanSharedLibPath GetBundleInfos is error 01-01 00:00:12.838 5 22 D 01300/abilityms: AbilityMgrHandler::OnServiceInited(122): start [ERR]vfs_jffs_ioctl NOT SUPPORT
音频播放失败;
camera摄像头拍照和录制的视频偏绿;
其他:
1、应用路径 D:\source\harmony\harmonyos_1.0\build\lite\product\ipcamera_hi3518ev300.json: 17 "name": "applications", 18 "component": [ 19: { "name": "camera", "dir": "//applications/sample/camera/app:camera_app", "features":[] }, 20 { "name": "communication", "dir": "//applications/sample/camera/communication:sample", "features":[] } 21 ] D:\source\harmony\harmonyos_1.0\build\lite\platform\hi3518ev300_liteos_a\platform.json: 205 "optional": "true", 206 "targets": [ 207: "//applications/sample/camera/app:camera_app", 208 "//applications/sample/camera/communication:sample" 209 ], 2、修改shell提示符 D:\source\harmony\harmonyos_1.0\kernel\liteos_a\apps\shell\include\shmsg.h: 53 #define COLOR_RED "\e[0;31m" 54 #define COLOR_L_RED "\e[1;31m" 55: #define SHELL_PROMPT COLOR_L_RED"OHOS # "COLOR_NONE 56 57 typedef void (*OutputFunc)(const char *fmt, ...);
碰到的问题真不少,一个一个的解决吧!
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