update home and merge licheepi4a changes

.gitignore

@@ -4,4 +4,5 @@ temp
 .vscode
 .ipynb_checkpoints
 .qiniu_pythonsdk_hostscache.json
-*.temp
+*.temp
+*.mo

config/config_en.json

@@ -10,7 +10,7 @@
         "items": [
             {
             "label": "Products",
-            "url": "/#products",
+            "url": "/hardware/en/",
             "position": "left"
         },
         {
@@ -184,7 +184,7 @@
     "teedoc-plugin-ad-hint": {
         "config": {
             "type": "hint",
-            "label": "☆",
+            "label": "NEW",
             "content": "New MaixHub online, online annotation, one-key to deploy, better experience, support Maix-I, Maix-II, mobile phone, web, <a href='https://maixhub.com'>Go!</a></br>Latest open source project <a href='https://github.com/sipeed/TinyMaix'>TinyMaix</a>, model infer runtime runs on any MCU, even runs on 2KiB RAM chip",
             "show_after_s": 432000,
             "date": "2022-06-01 14:00"

config/config_zh.json

@@ -10,12 +10,12 @@
         "items": [
             {
                 "label": "产品",
-                "url": "/#products",
+                "url": "/hardware/zh/",
                 "position": "left"
             },
             {
-                "label": "软件文档",
-                "desc": "软件项目或者通用的软件文档和教程",
+                "label": "开源软件",
+                "desc": "开源软件项目或者通用的软件文档和教程",
                 "position": "left",
                 "type": "list",
                 "items": [

docs/hardware/en/README.md

@@ -1,7 +1,7 @@
 ---
 title: Sipeed Hardware
-keywords: Sipeed, Hardware, Sipeed, Hardware specifications, Documentation, Downloaden, Deeplearning, Artificial Intelligence, K210
-desc: Sipeed hardware documentation website
+layout: redirect
+redirect_url: /
 ---
 
 > Updating, [Chinese site](https://wiki.sipeed.com/hardware/zh/index.html) is the latest one.

docs/hardware/en/lichee/th1520/lpi4a/5_desktop.md

@@ -172,7 +172,7 @@ W: GPG error: http://archive.ubuntu.com trusty-updates Release: The following si
 
 You can try the following command to fix it:   
 ```shell
-sudo apt-key adv --keyserver keyring.debian.org --recv-keys 'Replace the key value after NO_PUBKEY in the error message here'
+sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 'Replace the key value after NO_PUBKEY in the error message here'
 # or
 gpg --keyserver keyserver.ubuntu.com --recv-keys 'Replace the key value after NO_PUBKEY in the error message here'
 ```
@@ -374,7 +374,7 @@ sipeed@lpi4a:~$ cat /etc/fstab
 `/dev/mmcblk1p1: UUID="033173ff-b3ab-494c-ab14-4dcd656a9214" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="8e4e28df-01"`
 
 
-### VNC Remote Desktop
+## VNC Remote Desktop
 
 Install the required packages and remote desktop using the lightweight Xfce desktop environment.
 ```shell

docs/hardware/en/lichee/th1520/lpi4a/6_peripheral.md

@@ -195,6 +195,201 @@ gpiochip0: GPIOs 504-511, parent: i2c/0-0018, 0-0018, can sleep:    IO expend 1
  gpio-511 (                    |aon:soc_cam2_avdd25_) out lo
 ```  -->
 
+## Use of gpiod library
+
+The GPiod library is a library that can call GPIO in the same user space, making it convenient for users to operate GPIO in applications.
+Firstly, install and deploy the GPIO library:
+
+```shell
+sudo apt install wget
+wget https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/snapshot/libgpiod-2.0.tar.gz
+
+tar zxvf libgpiod-2.0.tar.gz
+
+cd libgpiod-2.0
+sudo apt-get install build-essential pkg-config m4 automake autoconf libtool autoconf-archive
+sudo apt install gcc g++
+
+export CC=gcc
+export CXX=g++
+
+#Deploy the relevant files of the library to the project folder: -- The path after prefix should be changed to the path where the project is located for future operations
+./autogen.sh --enable-tools=yes --prefix=/home/sipeed/mylib_local
+make
+sudo make install
+```
+
+如果执行：./autogen.sh --enable-tools=yes --prefix=/home/sipeed/mylib_local 出现以下错误：
+
+```shell
+aclocal: warning: couldn't open directory 'm4': No such file or directory
+#You can execute the following commands
+mkdir m4
+./autogen.sh --enable-tools=yes --prefix=/home/sipeed/mylib_local
+make 
+make install
+```
+
+Start operating GPIO:
+
+```shell
+sudo vim gpio.c
+
+#The content of gpio. c is as follows:
+
+#include<stdio.h>
+#include<unistd.h>
+#include<gpiod.h>
+
+#define PIN_IO1_3   3
+#define PIN_IO1_4   4
+#define PIN_IO1_5   5
+
+int main() {
+  struct gpiod_chip *gchip;
+  struct gpiod_line_info *glinein, *glineout;
+  struct gpiod_line_settings *gline_settings_in, *gline_settings_out;
+  struct gpiod_line_config   *gline_config_in, *gline_config_out;
+  struct gpiod_request_config *gline_request_config_in, *gline_request_config_out;
+  struct gpiod_line_request   *gline_request_in, *gline_request_out;
+  int offset_in[1] = {PIN_IO1_5};
+  int offset_out[2] = {PIN_IO1_3, PIN_IO1_4};
+  int value;
+
+  if ((gchip=gpiod_chip_open("/dev/gpiochip4")) == NULL) {
+    perror("gpiod_chip_open");
+    return 1;
+  }
+
+  
+  gline_settings_in = gpiod_line_settings_new();
+  if ((value=gpiod_line_settings_set_direction(gline_settings_in, GPIOD_LINE_DIRECTION_INPUT)) != 0)  {
+    perror("gpiod_line_settings_set_direction");
+  }
+
+  gline_config_in = gpiod_line_config_new();
+  value=gpiod_line_config_add_line_settings(gline_config_in, offset_in, 1, gline_settings_in);
+  gline_request_config_in = gpiod_request_config_new();
+  gline_request_in = gpiod_chip_request_lines(gchip, gline_request_config_in, gline_config_in);
+
+
+
+
+  value=gpiod_line_request_get_value(gline_request_in, PIN_IO1_5);
+  printf("IO1-5 = %d\n", value);
+
+
+
+
+  gline_settings_out = gpiod_line_settings_new();
+  if (gpiod_line_settings_set_direction(gline_settings_out, GPIOD_LINE_DIRECTION_OUTPUT) != 0) {
+    perror("gpiod_line_settings_set_direction");
+  }
+  gline_config_out = gpiod_line_config_new();
+
+  gpiod_line_config_add_line_settings(gline_config_out, offset_out, 2, gline_settings_out);
+  gline_request_config_out = gpiod_request_config_new();
+  gline_request_out = gpiod_chip_request_lines(gchip, gline_request_config_out, gline_config_out);
+
+
+
+  value=gpiod_line_request_set_value(gline_request_out, PIN_IO1_3, 1);
+
+  value=gpiod_line_request_set_value(gline_request_out, PIN_IO1_4, 0);
+
+  printf("IO1-3 = 1, IO1-4 = 0\n");
+  sleep(1);
+
+
+  for (int i = 0; i < 10; i++) {
+
+
+      value=gpiod_line_request_get_value(gline_request_in, PIN_IO1_5);
+      printf("IO1-5 = %d\n", value);
+
+      
+      value=gpiod_line_request_set_value(gline_request_out, PIN_IO1_3, 0);
+      value=gpiod_line_request_set_value(gline_request_out, PIN_IO1_4, 1);
+   
+      printf("IO1-3 = 0, IO1-4 = 1\n");
+      sleep(1);
+
+
+
+      value=gpiod_line_request_get_value(gline_request_in, PIN_IO1_5);
+      printf("IO1-5 = %d\n", value);
+
+
+      value=gpiod_line_request_set_value(gline_request_out, PIN_IO1_3, 1);
+      value=gpiod_line_request_set_value(gline_request_out, PIN_IO1_4, 0);
+
+      printf("IO1-3 = 1, IO1-4 = 0\n");
+      sleep(1);
+
+  }
+
+  gpiod_chip_close(gchip);
+  return 0;
+}
+
+```
+
+Save and compile
+
+```shell
+gcc  -I/home/sipeed/mylib_local/include -L/home/sipeed/mylib_local/lib -o gpio gpio.c -lgpiod
+
+```
+Some device permissions need to be granted before execution
+
+```shell
+export LD_LIBRARY_PATH=/home/sipeed/mylib_local/lib:$LD_LIBRARY_PATH
+export PATH=/home/sipeed/mylib_local/bin:$PATH
+sudo chmod o+rw /dev/gpiochip4
+sudo chmod o+rw /dev/spidev2.0
+
+#It can be directly executed in an. sh file
+
+```
+
+Run program:
+
+```shell
+
+./gpio
+
+```
+
+
+The console output is as follows:
+
+```shell
+
+sipeed@lpi4a:~/gpio$ ./gpio 
+IO1-5 = 1
+IO1-3 = 1, IO1-4 = 0
+IO1-5 = 1
+IO1-3 = 0, IO1-4 = 1
+IO1-5 = 1
+IO1-3 = 1, IO1-4 = 0
+IO1-5 = 1
+IO1-3 = 0, IO1-4 = 1
+IO1-5 = 1
+IO1-3 = 1, IO1-4 = 0
+IO1-5 = 1
+IO1-3 = 0, IO1-4 = 1
+IO1-5 = 1
+IO1-3 = 1, IO1-4 = 0
+IO1-5 = 1
+IO1-3 = 0, IO1-4 = 1
+IO1-5 = 1
+IO1-3 = 1, IO1-4 = 0
+IO1-5 = 1
+IO1-3 = 0, IO1-4 = 1
+
+```
+
+
 ## UART 
 
 ### System Serial Port
@@ -304,7 +499,61 @@ sipeed@lpi4a:~$ ls /dev/spidev2.0
 /dev/spidev2.0
 ```
 
-TODO
+### Start
+
+Pay attention to the IO drive capability. Licheepi4A requires an external level conversion chip and uses TXS10108E for its own use
+
+All programs of this routine are compiled on the board. If cross coding is necessary, the tool chain can be replaced during compilation.
+
+The GPIO operation of the following routine is based on the GPIOD library above.
+
+#### 1.Download the source code
+
+```shell
+git clone https://github.com/fffdee/ST7735_for_Licheepi4A.git
+```
+#### 2.Building the GPIOD library
+
+Dependencies required for installation:
+
+```shell
+sudo apt-get install build-essential pkg-config m4 automake autoconf libtool autoconf-archive
+sudo apt install gcc g++ gpiod cmake
+```
+
+Install the GPIOD library (the source file is already installed, and the library path needs to be changed. Please refer to the following steps):
+
+```shell
+tar zxvf libgpiod-2.0.tar.gz
+cd libgpiod-2.0
+
+export CC=gcc
+export CXX=g++
+
+
+#Deploy the relevant files of the library to the project folder: -- The path after prefix should be changed to the path where the project is located for future operations
+./autogen.sh --enable-tools=yes --prefix=/home/sipeed/TFT_demo/
+make
+sudo make install
+#Installation completed
+```
+
+#### 3.Compile and Run
+
+```shell
+
+cd TFT_demo
+cmake .
+make -j4
+
+#授予设备权限，每次开机执行一次即可
+. exec.sh
+./tft_demo
+```
+
+#### Renderings
+
+![效果图1](./../../../../zh/lichee/th1520/lpi4a/assets/peripheral/tft_demo.png)
 
 ## USB