38 io_conf.pull_down_en = 0;
39 //disable pull-up mode
40 io_conf.pull_up_en = 0;
41 //configure GPIO with the given settings
42 gpio_config(&io_conf);
43
44
45 printf(“Hello world!\n”);
46
47 /* Print chip information */
48 esp_chip_info_t chip_info;
49 esp_chip_info(&chip_info);
50 printf(“This is ESP32 chip with %d CPU cores, WiFi%s%s, ”,
51 chip_info.cores,
52 (chip_info.features & CHIP_FEATURE_BT) ? “/BT” : “”,
53 (chip_info.features & CHIP_FEATURE_BLE) ? “/BLE” : “”);
54
55 printf(“silicon revision %d, ”, chip_info.revision);
56
57 printf(“%dMB %s flash\n”, spi_flash_get_chip_size() / (1024 * 1024),
58 (chip_info.features & CHIP_FEATURE_EMB_FLASH) ? “embedded” : “external”);
59
60 // for (int i = 10; i 》= 0; i--)
61 while(1)
62 {
63 //printf(“Restarting in %d seconds.。。\n”, i);
64 vTaskDelay(1000 / portTICK_PERIOD_MS);//延时
65 printf(“I am ZhiNianZhiZhan! \n”);
66 printf(“Try To Study ESP32\n”);
67 gpio_set_level(GPIO_OUTPUT_IO_LED, i % 2);//将板子上的led灯不断翻转IO,使其闪烁
68 i++;
69 if(i》499)i=0;
70 }
71 //printf(“Restarting now.\n”);
72
73 //fflush(stdout);
74 //esp_restart();//重启函数,屏蔽掉就不重启了。
75 }
接着,build。漫长的等待。。。。。.build成功会显示如下东西:
build成功后,就是下载了。