fix the compile error of TIM-VX (#560)

.github/workflows/test-coverage.yml

@@ -52,6 +52,8 @@ jobs:
       run: sudo apt-get update
     - name: protobuf
       run: sudo apt-get install libopencv-dev
+    - name: gtest
+      run: sudo apt-get install libgtest-dev
     - name: lcov
       run: sudo apt-get install lcov
     - name: tim-vx

.github/workflows/workflows.yml

@@ -141,6 +141,8 @@ jobs:
       run: sudo apt-get update
     - name: protobuf
       run: sudo apt-get install libopencv-dev
+    - name: gtest
+      run: sudo apt-get install libgtest-dev
     - name: tim-vx
       run: |
         git clone https://github.com/VeriSilicon/TIM-VX.git

doc/compile.md

@@ -150,7 +150,7 @@ make
 make install
 ```
 
-## 4. GPU 版本
+## 4. 异构计算 版本
 
 #### 4.1 ACL
 
@@ -168,6 +168,10 @@ make install
 
 请参考 [Tengine Lite TensorRT GPU 使用说明](gpu_trt_user_manual.md)。
 
+#### 4.5 TIM-VX
+
+请参考 [Tengine Lite VeriSilicon NPU 使用说明](npu_tim-vx_user_manual.md)。
+
 ## 5. 交叉编译 Arm64 OHOS（鸿蒙系统） 版本
 
 ### 5.1 安装 DevEco Studio 和 OHOS NDK

doc/npu_tim-vx_user_manual.md

@@ -2,9 +2,9 @@
 
 ## 1. Brief
 
-TIM-VX is a software integration module provided by VeriSilicon to facilitate deployment of Neural-Networks on OpenVX enabled ML accelerators.
+[TIM-VX](https://github.com/VeriSilicon/TIM-VX.git) is a software integration module provided by VeriSilicon to facilitate deployment of Neural-Networks on OpenVX enabled ML accelerators.
 
-Tengine Lite has supported to integrate with TIM-VX Library of Verisilicon to inference CNN by Khadas VIM3(Amlogic A311D).
+Tengine Lite has supported to integrate with TIM-VX Library of Verisilicon to inference CNN by [Khadas VIM3](https://www.khadas.cn/product-page/vim3)(Amlogic A311D).
 
 ## 2. How to Build
 
@@ -14,6 +14,7 @@ For some special reasons, only supported on Khadas VIM3 or x86_64 simulator to w
 
 ```bash
 $ git clone https://github.com/VeriSilicon/TIM-VX.git
+$ sudo apt-get install libgtest-dev
 ```
 
 ##### Download Tengine Lite
@@ -86,7 +87,17 @@ build-tim-vx-arm64/install/lib/
 └── libtengine-lite.so
 ```
 
-On the Khadas VIM3, it need to replace those libraries in the /lib/ path
+On the Khadas VIM3, it need to replace those libraries in the /lib/ 
+
+#### 3.2 Replace the kernel module on the board if necessary
+- Q: Why?
+- A: Because the firmware of Khadas VIM3 maybe pre-install old version kernel module of NPU  
+- Q: How to?
+- A: Remove the old kernel module and replace it with the new version(in the /prebuild-sdk-a311d/lib/galcore.ko) 
+```
+$ rmmod galcore
+$ ismod galcore
+```
 
 #### 3.2 Set uint8 Inference mode