可连接可扫描的非定向广播

# 功能简介

该示例工程的功能就是：以100ms的时间间隔，向外广播设备名为**“我是谁?”**的可连接可扫描的非定向广播数据：

![](https://docdisk.wireless-tech.cn/img/2022/02/17/2022-02-17_211847_940427.png)

同时，它也接受其他扫描者的扫描请求并回复广播设备名为**“HX-DK-商”**的扫描响应数据。
![](https://docdisk.wireless-tech.cn/img/2022/02/17/2022-02-17_211942_936400.png)

## 如何使用该示例工程
将示例工程中的[connectable-scannable-undirected-adv](https://docdisk.wireless-tech.cn/file/2022/02/20/connectable-scannable-undirected-adv.zip) 文件夹拷贝到您指定的任意目录下，然后直接编译下载，如果一切顺利即可实现上述所描述的功能，同时串口也会打印如下的数据：
```c
ESP-ROM:esp32c3-api1-20210207
Build:Feb  7 2021
rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd6100,len:0x18c0
load:0x403ce000,len:0xc10
load:0x403d0000,len:0x2d3c
entry 0x403ce000
I (30) boot: ESP-IDF v5.0-dev-1592-g03fb3fd25b-dirty 2nd stage bootloader
I (30) boot: compile time 21:06:26
I (30) boot: chip revision: 3
I (34) qio_mode: Enabling default flash chip QIO
I (39) boot.esp32c3: SPI Speed      : 80MHz
I (44) boot.esp32c3: SPI Mode       : QIO
I (49) boot.esp32c3: SPI Flash Size : 4MB
I (54) boot: Enabling RNG early entropy source...
I (59) boot: Partition Table:
I (63) boot: ## Label            Usage          Type ST Offset   Length
I (70) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (77) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (85) boot:  2 factory          factory app      00 00 00010000 00100000
I (92) boot: End of partition table
I (96) esp_image: segment 0: paddr=00010020 vaddr=3c090020 size=1f018h (127000) map
I (123) esp_image: segment 1: paddr=0002f040 vaddr=3fc8e400 size=00fd8h (  4056) load
I (124) esp_image: segment 2: paddr=00030020 vaddr=42000020 size=87ae0h (555744) map
I (206) esp_image: segment 3: paddr=000b7b08 vaddr=3fc8f3d8 size=01488h (  5256) load
I (208) esp_image: segment 4: paddr=000b8f98 vaddr=40380000 size=0e294h ( 58004) load
I (222) esp_image: segment 5: paddr=000c7234 vaddr=50000010 size=00010h (    16) load
I (226) boot: Loaded app from partition at offset 0x10000
I (227) boot: Disabling RNG early entropy source...
I (244) cpu_start: Pro cpu up.
I (252) cpu_start: Pro cpu start user code
I (252) cpu_start: cpu freq: 160000000 Hz
I (252) cpu_start: Application information:
I (255) cpu_start: Project name:     hx_ble_connectable-scannable-un
I (262) cpu_start: App version:      1
I (266) cpu_start: Compile time:     Feb 17 2022 21:05:37
I (272) cpu_start: ELF file SHA256:  4e67fda04a20f54e...
I (278) cpu_start: ESP-IDF:          v5.0-dev-1592-g03fb3fd25b-dirty
I (286) heap_init: Initializing. RAM available for dynamic allocation:
I (293) heap_init: At 3FC94C60 len 0002B3A0 (172 KiB): DRAM
I (299) heap_init: At 3FCC0000 len 0001F060 (124 KiB): STACK/DRAM
I (306) heap_init: At 50000020 len 00001FE0 (7 KiB): RTCRAM
I (312) spi_flash: detected chip: generic
I (317) spi_flash: flash io: qio
I (321) sleep: Configure to isolate all GPIO pins in sleep state
I (327) sleep: Enable automatic switching of GPIO sleep configuration
I (335) coexist: coexist rom version 9387209
I (340) cpu_start: Starting scheduler.
W (349) BTDM_INIT: esp_bt_controller_mem_release not implemented, return OK
I (349) BTDM_INIT: BT controller compile version [33175c8]
I (359) phy_init: phy_version 907,3369105-dirty,Dec  3 2021,14:55:12
I (409) system_api: Base MAC address is not set
I (409) system_api: read default base MAC address from EFUSE
I (409) BTDM_INIT: Bluetooth MAC: 7c:df:a1:66:aa:49

I (439) Connectable-scannable-undirected-adv Demo: register callback
I (439) Connectable-scannable-undirected-adv Demo: set device name successfully
I (439) Connectable-scannable-undirected-adv Demo: configure scan rsp data successfully
I (449) Connectable-scannable-undirected-adv Demo: configure adv data successfully
I (449) Connectable-scannable-undirected-adv Demo: start adverstising successfully
```
## 故障排除

1. 编译失败，则需要查看开发环境是否配置正确或者遗漏了哪个环节，详情请参考[《基于VSCODE的ESP32C3开发环境的搭建》](https://docs.wireless-tech.cn/doc/6/)；
1. 下载失败，则查看下串口号是否配置正确，串口硬件是否工作正常；如果使用的是JTAG接口，则需要查看配置和连线是否正确，更多详情请参考[《基于JTAG对ESP32-C3的调试及下载》](https://docs.wireless-tech.cn/doc/7/)；
1. 调试失败，查看配置和硬件连线是否正确，更多详情请参考[《基于JTAG对ESP32-C3的调试及下载》](https://docs.wireless-tech.cn/doc/7/)；

## 技术支持和反馈

如果上述的[故障排除](#故障排除)仍然无法解决您的问题，则通过下面的方式获取技术支持：
1. [红旭无线论坛](https://bbs.wireless-tech.cn/)，将出现问题的现象详细描述出来，并且附上截图 **(越详细越好)** ，24小时内必有答复；

如果我们的示例工程有Bug或者描述不正确的地方，欢迎指出并通知我们：

1. 邮件，<administrator@wireless-tech.cn>
1. 评论，在该文档下方发布您发现的问题