> The U-Boot file can be obtained from the following path: device\hisilicon\hispark_taurus\sdk_liteos\uboot\out\boot\u-boot-hi3516dv300.bin.
2. Burn the U-Boot file by following the procedures for burning a U-Boot file over USB.
Select the U-Boot files of corresponding development boards for burning by referring to [Burning to Hi3516D V300](https://device.harmonyos.com/en/docs/documentation/guide/ide-hi3516-upload-0000001052148681)/[Burning to Hi3518E V300](https://device.harmonyos.com/en/docs/documentation/guide/ide-hi3518-upload-0000001057313128#section93591711580).
Select the U-Boot files of corresponding development boards for burning by referring to [Burning to Hi3516D V300](https://device.harmonyos.com/en/docs/documentation/guide/ide-hi3516-upload-0000001052148681).
3. Log in to the serial port after the burning is complete.
@@ -8,7 +8,7 @@ The following exemplifies how to run the first program on the development board.
The complete code directory is as follows:
```
applications/sample/hello
│ │── BUILD.gn
...
...
@@ -21,7 +21,7 @@ build
└── subsystem_config.json
productdefine/common
└── products
└── Hi3568DV300.json
└── Hi3516DV300.json
```
...
...
@@ -34,7 +34,7 @@ Perform the steps below in the source code directory:
Create the **applications/sample/hello/src/helloworld.c** directory and file whose code is shown in the following example. You can customize the content to be printed. For example, you can change **World** to **OH**. Declare the string printing function **HelloPrint** in the **helloworld.h** file. You can use either C or C++ to develop a program.
```
#include <stdio.h>
#include "helloworld.h"
...
...
@@ -55,7 +55,7 @@ Perform the steps below in the source code directory:
Add the header file **applications/sample/hello/include/helloworld.h**. The sample code is as follows:
```
#ifndef HELLOWORLD_H
#define HELLOWORLD_H
...
...
@@ -78,7 +78,7 @@ Perform the steps below in the source code directory:
2. Create a build file.
1. Create the **applications/sample/hello/BUILD.gn** file. The file content is as follows:
```
import("//build/ohos.gni") # Import the build template.
