HiSpark Wi-Fi IoT小车上手之烧录出厂样例

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1.下载样例代码

①.gitee仓库地址

https://gitee.com/hihope_iot/hispark-pegasus-smart-car.git

②.克隆代码到本地

git clone https://gitee.com/hihope_iot/hispark-pegasus-smart-car.git

③.将样例代码拷贝到openharmony

目录：hispark-pegasus-smart-car智能循迹避障小车样例代码robot_demo 
拷贝到：openharmonyapplicationssamplewifi-iotapp

2.使能编译IIC驱动

目录：openharmonydevicehisiliconhispark_pegasussdk_liteosbuildconfigusr_config.mk。

找到这里
# CONFIG_FACTORY_TEST_SUPPORT is not set
# end of Factory Test Settings
#
# BSP Settings
#
CONFIG_I2C_SUPPORT=y        《《《打开编译IIC驱动，改成这样
# CONFIG_I2S_SUPPORT is not set
# CONFIG_SPI_SUPPORT is not set
# CONFIG_DMA_SUPPORT is not set
# CONFIG_SDIO_SUPPORT is not set
# CONFIG_SPI_DMA_SUPPORT is not set
# CONFIG_UART_DMA_SUPPORT is not set
CONFIG_PWM_SUPPORT=y
CONFIG_PWM_HOLD_AFTER_REBOOT=y
CONFIG_AT_SUPPORT=y
CONFIG_FILE_SYSTEM_SUPPORT=y
CONFIG_UART0_SUPPORT=y
CONFIG_UART1_SUPPORT=y
# CONFIG_UART2_SUPPORT is not set
# end of BSP Settings

3.把样例加入编译

目录：openharmony3applicationssamplewifi-iotappBUILD.gn。

import("//build/lite/config/component/lite_component.gni")
lite_component("app") {
    features = [
        "robot_demo:robot_demo",
        "robot_demo/ssd1306:oled_ssd1306",
    ]
}

注意：官方样例使用说明 https://gitee.com/hihope_iot/hispark-pegasus-smart-car 里面的 BUILD.gn 未将 oled_ssd1306 加入编译，不加入会报错。

4.编译样例

①.设置编译路径

hb set
.(英文字符)

复制②.选择wifiiot_hispark_pegasus

③.执行编译

hb build -f

5.烧录

①打开HiBurn烧录工具

②. 选择要烧录的文件

点击select fine
选择该路径：openharmonyouthispark_pegasuswifiiot_hispark_pegasus 下的Hi3861_loader_signed.bin和Hi3861_wifiiot_app_allinone.bin

复制

③.勾选上 Auto burn

④.烧录

点击Connect

⑤.开发板复位

开始烧录。

⑥.烧录完成，点击disconnect按钮

6.测试结果

测试成功!

7.报错解决

①.未使能驱动编译

报错提示：

[OHOS ERROR] riscv32-unknown-elf-ld: ohos/libs/libhal_iothardware.a(libhal_iothardware.hal_iot_i2c.o): in function `IoTI2cInit':
[OHOS ERROR] hal_iot_i2c.c:(.text.IoTI2cInit+0x10): undefined reference to `hi_i2c_init'

解决办法：

目录：openharmonydevicehisiliconhispark_pegasussdk_liteosbuildconfigusr_config.mk。

找到这里
# CONFIG_FACTORY_TEST_SUPPORT is not set
# end of Factory Test Settings
#
# BSP Settings
#
CONFIG_I2C_SUPPORT=y        《《《打开编译IIC驱动，改成这样
# CONFIG_I2S_SUPPORT is not set
# CONFIG_SPI_SUPPORT is not set
# CONFIG_DMA_SUPPORT is not set
# CONFIG_SDIO_SUPPORT is not set
# CONFIG_SPI_DMA_SUPPORT is not set
# CONFIG_UART_DMA_SUPPORT is not set
CONFIG_PWM_SUPPORT=y
CONFIG_PWM_HOLD_AFTER_REBOOT=y
CONFIG_AT_SUPPORT=y
CONFIG_FILE_SYSTEM_SUPPORT=y
CONFIG_UART0_SUPPORT=y
CONFIG_UART1_SUPPORT=y
# CONFIG_UART2_SUPPORT is not set
# end of BSP Settings

②.未加入编译

报错提示：

[OHOS ERROR] ssd1306_test.c:(.text.Ssd1306TestTask+0x3c): undefined reference to `ssd1306_Init'
[OHOS ERROR] riscv32-unknown-elf-ld: ssd1306_test.c:(.text.Ssd1306TestTask+0x46): undefined reference to `ssd1306_Fill'
[OHOS ERROR] riscv32-unknown-elf-ld: ssd1306_test.c:(.text.Ssd1306TestTask+0x52): undefined reference to `ssd1306_SetCursor'

解决办法：

目录：openharmony3applicationssamplewifi-iotappBUILD.gn。

import("//build/lite/config/component/lite_component.gni")
lite_component("app") {
    features = [
        "robot_demo:robot_demo",
        "robot_demo/ssd1306:oled_ssd1306",
    ]
}

③.HiSpark Wi-Fi IoT开发板上电没反应

可能原因：使用了双头Type-C数据线供电，导致无法供电，因为开发板没有受电端诱骗芯片。

​​想了解更多内容，请访问：​​

​​51CTO和华为官方合作共建的鸿蒙技术社区​​

​​https://ost.51cto.com​​