import("//build/lite/config/component/lite_component.gni")
lite_component("app") {
features = [ "lth1550_demo:lth1550_control", ]
}

 /* ADC的相关API接口 Related API interfaces of ADC */
 #include <stdio.h>
 #include <unistd.h>

 #include "ohos_init.h"
 #include "cmsis_os2.h"
 #include "iot_gpio_ex.h"
 #include "iot_gpio.h"
 #include "iot_adc.h"
 #include "hi_adc.h"
 #include "iot_watchdog.h"
 #include "iot_errno.h"

 void Lth1550Init(void)
 {
 /* 红外对管对应的GPIO，左：ADC0_GPIO12，右：ADC3_GPIO07 */
 /* GPIO corresponding to infrared tube, left: ADC0_ GPIO12, right: ADC3_
IO07 */
 IoTGpioInit(IOT_IO_NAME_GPIO_7);
 /* 设置GPIO07的管脚复用关系为GPIO */
 /* Set the pin reuse relationship of GPIO07 to GPIO */
 IoSetFunc(IOT_IO_NAME_GPIO_7, IOT_IO_FUNC_GPIO_7_GPIO);
 IoTGpioSetDir(IOT_IO_NAME_GPIO_7, IOT_GPIO_DIR_IN);
 IoTGpioInit(IOT_IO_NAME_GPIO_12);
 IoSetFunc(IOT_IO_NAME_GPIO_12, IOT_IO_FUNC_GPIO_12_GPIO);
 IoTGpioSetDir(IOT_IO_NAME_GPIO_12, IOT_GPIO_DIR_IN);
 }

 void GetInfraredData(IotAdcChannelIndex idx)
 {
 unsigned short data = 0;
 int ret = 0;
 /* ADC_Channal_6 自动识别模式 CNcomment:4次平均算法模式 CNend 0xff */
 /* ADC_ Channal_ 6 Automatic recognition mode CNcomment: 4 times average
gorithm mode CNend 0xff */
 ret = AdcRead(idx, &data, IOT_ADC_EQU_MODEL_4, IOT_ADC_CUR_BAIS_DEFAULT,
ff);
 if (ret != IOT_SUCCESS) {
 printf("hi_adc_read failed\n");
 }
 if (IOT_ADC_CHANNEL_0 == idx) {
 printf("Left ADC value is %d \r\n", data);
 } else if (IOT_ADC_CHANNEL_3 == idx) {
 printf("Right ADC value is %d \r\n", data);
 }
 }

 static void adcTask(void)
 {
 Lth1550Init();步骤四：点击DevEco Device Tool工具“Rebuild”按键，具体编译步骤参考“1.4章节 运行第一个程序
helloworld”
步骤五：点击DevEco Device Tool工具“Upload”按键，等待提示（出现Connecting，please reset
device...），手动进行开发板复位（按下开发板reset键），将程序烧录到开发板中。具体烧录步骤
参考“1.4章节 运行第一个程序helloworld”。
 while (1) {
 GetInfraredData(IOT_ADC_CHANNEL_3);
 GetInfraredData(IOT_ADC_CHANNEL_0);
 usleep(20); // wait 20 us
 }
 }

 void ADCExampleEntry(void)
 {
 osThreadAttr_t attr;
 IoTWatchDogDisable();
 attr.name = "adcTask";
 attr.attr_bits = 0U;
 attr.cb_mem = NULL;
 attr.cb_size = 0U;
 attr.stack_mem = NULL;
 attr.stack_size = 5 * 1024; // 堆栈大小5*1024，stack size 5*1024
 attr.priority = osPriorityNormal;

 if (osThreadNew((osThreadFunc_t)adcTask, NULL, &attr) == NULL) {
 printf("[LSM6DSTask] Failed to create LSM6DSTask!\n");
 }
 }

 APP_FEATURE_INIT(ADCExampleEntry);