海思芯片HI35xx NNIE踩坑录

本文实际使用的芯片： hi3566v100

SDK: Hi3562V100_MobileCam_SDK_V2.0.0.1

 

1. open /dev/ive err 

• 报错以下：

[Func]:ive_check_fd_open [Line]:89 [Info]:open /dev/ive err
iveDmaCopy 0 fail!
createRectImageByIVE fail!

• 缘由：linux 未自动加载ive设备， 可经过 ls /dev 查看有无 ive设备
• 解决方法：

将<SDK_root>\Hi3562V100_MobileCam_SDK_V2.0.0.1\amp\a7_linux\mpp\ko目录下的hi35xx*_ive.ko复制到开发板上， 使用insmod hi35xx*_ive.ko 插入该module到Linux系统中。

 

2. NameError: name 'reduce' is not defined

• 报错

Traceback (most recent call last):
  File "/usr_work/Hi3562V100_MobileCam_SDK_V2.0.0.1/osdrv/platform/liteos/tools/scripts/dynload_tools/dynload_sh/make_symlst.py", line 52, in <module>
    work(realpath)
  File "/usr_work/Hi3562V100_MobileCam_SDK_V2.0.0.1/osdrv/platform/liteos/tools/scripts/dynload_tools/dynload_sh/make_symlst.py", line 42, in work
    elif reduce(operator.ior, map(lambda x: True if file_name.endswith(x) else False, edit_suffixs)):
NameError: name 'reduce' is not defined

• 缘由： python3中取消了全局命名空间中的reduce()函数，将reduced()放到了functools模块中，要使用reduce()的话，要先加载functools.
• 解决方法：

在报错的文件

/usr_work/Hi3562V100_MobileCam_SDK_V2.0.0.1/osdrv/platform/liteos/tools/scripts/dynload_tools/dynload_sh/make_symlst.py

的开头添加一行

from functools import reduce

其余坑见移植WK模型到HI3559V200——踩坑记录:

• 1.alloc mmz memory failed
• 2.unmap mmz memory failed
• 3.无/dev/nnie
• 4.Hi3559修改mmz大小