Hi3861 OpenHarmony嵌入式应用入门--hello world

devtools/2024/9/22 19:08:55/

这篇文章我们开始根据自己的开发板编写测试例程，通过编写例程来更好的学习。

目的：使用开发板上电后周期性打印“hello world”

我们需要创建自己的开发板工程目录，这里大部分时候会参考hqyj开发板的目录，但是我们会从0开始，这样能够更好的了解我们的工程中有哪些是我们自己的，哪些是鸿蒙sdk的。

修改D:\DevEcoProjects\test\src\applications\sample\wifi-iot\app\BUILD.gn文件

# Copyright (c) 2020 Huawei Device Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.import("//build/lite/config/component/lite_component.gni")lite_component("app") {features = [
#        "startup","//vendor/rtplay/rt_hi3861/demo:demo",]
}

在D:\DevEcoProjects\test\src\vendor创建文件夹rtplay，里面创建rt_hi3861，编写config文件，复制D:\DevEcoProjects\test\src\vendor\hqyj\fs_hi3861\config.json文件为 D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\config.json，并修改里面的开发板信息。

{"product_name": "rt_hi3861","ohos_version": "OpenHarmony 1.0","device_company": "rtplay","board": "rtplay_hi3861","kernel_type": "liteos_m","kernel_version": "","subsystems": [{"subsystem": "applications","components": [{ "component": "wifi_iot_sample_app", "features":[] }]},{"subsystem": "iot_hardware","components": [{ "component": "iot_controller", "features":[] }]},{"subsystem": "hiviewdfx","components": [{ "component": "hilog_lite", "features":[] }]},{"subsystem": "distributed_schedule","components": [{ "component": "samgr_lite", "features":[] }]},{"subsystem": "security","components": [{ "component": "hichainsdk", "features":[] },{ "component": "deviceauth_lite", "features":[] },{ "component": "huks", "features":["disable_huks_binary = false","disable_authenticate = false","huks_use_lite_storage = true","huks_use_hardware_root_key = true","huks_config_file = \"hks_config_lite.h\"","huks_mbedtls_path = \"//device/hisilicon/hispark_pegasus/sdk_liteos/third_party/mbedtls/include/\""]}]},{"subsystem": "startup","components": [{ "component": "bootstrap_lite", "features":[] },{ "component": "syspara_lite", "features":["enable_ohos_startup_syspara_lite_use_thirdparty_mbedtls = false"]}]},{"subsystem": "communication","components": [{ "component": "wifi_lite", "features":[] },{ "component": "softbus_lite", "features":[] },{ "component": "wifi_aware", "features":[]}]},{"subsystem": "update","components": [{ "component": "ota_lite", "features":[] }]},{"subsystem": "iot","components": [{ "component": "iot_link", "features":[] }]},{"subsystem": "utils","components": [{ "component": "file", "features":[] },{ "component": "kv_store", "features":[] },{ "component": "os_dump", "features":[] }]},{"subsystem": "vendor","components": [{ "component": "hi3861_sdk", "target": "//device/hisilicon/hispark_pegasus/sdk_liteos:wifiiot_sdk", "features":[] }]}],"third_party_dir": "//device/hisilicon/hispark_pegasus/sdk_liteos/third_party","product_adapter_dir": "//vendor/hisilicon/hispark_pegasus/hals"}

创建D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\BUILD.gn文件

# Copyright (c) 2023 Beijing HuaQing YuanJian Education Technology Co., Ltd
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#    http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License. import("//build/lite/config/component/lite_component.gni")lite_component("demo") {features = ["base_00_hellowrold:base_helloworld_example",]
}

创建D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\base_00_helloworld文件夹

文件夹中创建D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\base_00_helloworld\base_helloworld_example.c文件D:\DevEcoProjects\test\src\vendor\rtplay\rt_hi3861\demo\base_00_helloworld\BUILD.gn文件

# Copyright (c) 2023 Beijing HuaQing YuanJian Education Technology Co., Ltd
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License. static_library("base_led_example") {sources = ["base_helloworld_example.c",]include_dirs = ["//utils/native/lite/include","//kernel/liteos_m/kal/cmsis","//base/iot_hardware/peripheral/interfaces/kits","//vendor/hqyj/fs_hi3861/common/bsp/include"]
}
/** Copyright (c) 2023 Beijing HuaQing YuanJian Education Technology Co., Ltd* Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**    http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/#include <stdio.h>
#include <unistd.h>#include "cmsis_os2.h"
#include "ohos_init.h"osThreadId_t Task1_ID = 0;    //  任务1 ID
#define TASK_STACK_SIZE 1024
#define TASK_DELAY_TIME (1000 * 1000)/*** @description: 任务1* @param {*}* @return {*}*/
void Task1(void)
{printf("enter Task 1.......\r\n");while (1) {printf("hello world\r\n");usleep(TASK_DELAY_TIME);                      // 1s sleep}
}/*** @description: 初始化并创建任务* @param {*}* @return {*}*/
static void base_helloworld_demo(void)
{printf("[demo] Enter base_led_demo()!\r\n");osThreadAttr_t taskOptions;taskOptions.name = "Task1";                // 任务的名字taskOptions.attr_bits = 0;                 // 属性位taskOptions.cb_mem = NULL;                 // 堆空间地址taskOptions.cb_size = 0;                   // 堆空间大小taskOptions.stack_mem = NULL;              // 栈空间地址taskOptions.stack_size = TASK_STACK_SIZE;  // 栈空间大小 单位:字节taskOptions.priority = osPriorityNormal;   // 任务的优先级:wqTask1_ID = osThreadNew((osThreadFunc_t)Task1, NULL, &taskOptions);  // 创建任务1if (Task1_ID != NULL) {printf("ID = %d, Create Task1_ID is OK!\r\n", Task1_ID);}
}
SYS_RUN(base_helloworld_demo);

目录结构

│  config.json
│
├─common
│  └─bsp
│      ├─include
│      └─src
├─demo
│  │  BUILD.gn
│  │
│  └─base_00_helloworld
│         base_helloworld_example.c
│         BUILD.gn
└─doc│  HarmonyOS开发板实验指导书 v2.1.pdf│  华清远见 FS_Hi3861开发指导.md│  华清远见 FS_Hi3861新手入门手册.md│├─board│      FS-Hi3861-V4.2.pdf│      FS-Hi3861QDB-V3.2.pdf│      hi-12f_kit_v1.1.0A7E6BCB9%A6-20211025.pdf│      hi-12f_v1.1.2-A7E6BCB9%A6-20211202.pdf│      nodemcu-hi-07s_12f-kit_v1.1-20210913.pdf│      RTplay2.01_2024-06-14.pdf│└─figures

使用build

不出意外会出现如下

下载程序，具体流程详见烧写博文

间隔1秒打印hello world。


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