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[文章]【HarmonyOS HiSpark Wi-Fi IoT 套件试用连载】第三篇 跑马灯

小水滴1016
2020-11-15 16:35:57
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套件跑马灯HarmonyOS
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`弄了半天，VSCode中还是识别不了串口，只好放弃，采用Ubuntu中编译，Windows中使用HiBurn来烧写。

拿到开发板通常第一件事儿都是写个helloWorld的程序，点个灯
我也不例外，搞了个跑马灯。
代码如下：
led_demo.c

  1. #include <stdio.h>
  2. #include <unistd.h>
  3. #include "ohos_init.h"
  4. #include "cmsis_os2.h"
  5. #include "wifiiot_gpio.h"
  6. #include "wifiiot_gpio_ex.h"

  8. #define LED_TASK_STACK_SIZE 512
  9. #define LED_TASK_PRIO 25

  11. enum LedState {
  12.     LED_ON = 0,
  13.     LED_OFF,
  14.     LED_SPARK,
  15. };
  16. static void *LedTask(const char *arg)
  17. {
  18.     (void)arg;
  19.     while (1) {
  20.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_10, 1);
  21.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_11, 0);
  22.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_12, 0);
  23.         usleep(300000);
  24.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_10, 0);
  25.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_11, 0);
  26.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_12, 1);
  27.         usleep(300000);
  28.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_10, 0);
  29.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_11, 1);
  30.         GpioSetOutputVal(WIFI_IOT_IO_NAME_GPIO_12, 0);
  31.         usleep(300000);
  32.     }
  33.     return NULL;
  34. }

  36. static void led_demo(void)
  37. {
  38.     osThreadAttr_t attr;
  39.     GpioInit();
  40.     IoSetFunc(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_IO_FUNC_GPIO_10_GPIO);
  41.     IoSetFunc(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_IO_FUNC_GPIO_11_GPIO);
  42.     IoSetFunc(WIFI_IOT_IO_NAME_GPIO_12, WIFI_IOT_IO_FUNC_GPIO_12_GPIO);
  43.     GpioSetDir(WIFI_IOT_IO_NAME_GPIO_10, WIFI_IOT_GPIO_DIR_OUT);
  44.     GpioSetDir(WIFI_IOT_IO_NAME_GPIO_11, WIFI_IOT_GPIO_DIR_OUT);
  45.     GpioSetDir(WIFI_IOT_IO_NAME_GPIO_12, WIFI_IOT_GPIO_DIR_OUT);

  47.     attr.name = "LedTask";
  48.     attr.attr_bits = 0U;
  49.     attr.cb_mem = NULL;
  50.     attr.cb_size = 0U;
  51.     attr.stack_mem = NULL;
  52.     attr.stack_size = LED_TASK_STACK_SIZE;
  53.     attr.priority = LED_TASK_PRIO;

  55.     if (osThreadNew((osThreadFunc_t)LedTask, NULL, &attr) == NULL) {
  56.         printf("[LedExample] Falied to create LedTask!
  57. ");
  58.     }
  59. }

  61. SYS_RUN(led_demo);
复制代码
led_demo文件夹中

BIULD.gn
  1. # Copyright (c) 2020 Huawei Device Co., Ltd.
  2. # Licensed under the Apache License, Version 2.0 (the "License");
  3. # you may not use this file except in compliance with the License.
  4. # You may obtain a copy of the License at
  5. #
  6. #     http://www.apache.org/licenses/LICENSE-2.0
  7. #
  8. # Unless required by applicable law or agreed to in writing, software
  9. # distributed under the License is distributed on an "AS IS" BASIS,
  10. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11. # See the License for the specific language governing permissions and
  12. # limitations under the License.

  14. static_library("led_demo") {
  15.     sources = [
  16.         "led_demo.c"
  17.     ]

  19.     include_dirs = [
  20.         "//utils/native/lite/include",
  21.         "//kernel/liteos_m/components/cmsis/2.0",
  22.         "//base/iot_hardware/interfaces/kits/wifiiot_lite",
  23.     ]
  24. }
复制代码
同时，也要将app文件夹中的编译脚本文件BUILD.gn修改一下，在features中添加以下内容：
"led_demo:led_demo",
  1. # Copyright (c) 2020 Huawei Device Co., Ltd.
  2. # Licensed under the Apache License, Version 2.0 (the "License");
  3. # you may not use this file except in compliance with the License.
  4. # You may obtain a copy of the License at
  5. #
  6. #     http://www.apache.org/licenses/LICENSE-2.0
  7. #
  8. # Unless required by applicable law or agreed to in writing, software
  9. # distributed under the License is distributed on an "AS IS" BASIS,
  10. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11. # See the License for the specific language governing permissions and
  12. # limitations under the License.

  14. import("//build/lite/config/component/lite_component.gni")

  16. lite_component("app") {
  17.     features = [
  18.         "startup",
  19.         "led_demo:led_demo",
  20.     ]
  21. }
复制代码
添加完之后，返回CODE-1.0目录，在终端中输入以下命令：python build.py wifiiot
编译即可；
然后，返回Windows，用hiburn烧录即可。
第三篇完结，下一步，OLED，未完待续……








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