https://blog.csdn.net/ResumeProject/article/details/141335377

1. Tools
   sudo apt install gcc-arm-linux-gnueabi
   sudo apt-get remove libfdt-dev
2. uboot
   Change
   ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make -j8
   to
   make ARCH=arm menuconfig
   ----choose to correct defconfig
   make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- LicheePi_Zero_800x480LCD_defconfig
   ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make -j8

3. Kernel
   Makefile Change
   from
   CROSS_COMPILE ?= arm-linux-gnueabihf-
   to

   CROSS_COMPILE ?= arm-linux-gnueabi-

   sudo vim ./scripts/dtc/dtc-lexer.lex.c
   Find the line 'YYLTYPE yylloc' and change it to 'extern YYLTYPE yylloc'

在烧写KM4/HP的时候
Linux端的Jtag设置
GCC-RELEASE\project_hp\asdk\gnu_utility\gnu_script\ rtl_gdb_jtag_boot_com.txt
端口需要改成2335
原先的2331是KM0/LP

不是我想喷Realtek，团队内部公认的垃圾芯片，从来没遇到过如此曲折的过程。
SDK开发支持缺失，PM支持力度不够，片子动不动就进不去...
正题：
https://github.com/ambiot/ambd_sdk/tree/dev/component/soc/realtek/amebad
编译找不到的soc源码库
从这里获取
https://github.com/Ameba-AIoT/ameba-rtos-d/tree/main/component/soc/realtek/amebad

APP(KOTLIN)
https://github.com/fbiego/ESP32_BLE_OTA_Android
https://github.com/EspressifApps/esp-ble-ota-android

LIB:
https://github.com/fbiego/Android-BLE-Library

ESP:
https://components.espressif.com/components/espressif/ble_ota/versions/0.1.12/examples/ble_ota?language=en
https://github.com/espressif/esp-iot-solution/tree/master/examples/bluetooth/ble_ota

BONUS - LVGL
https://github.com/fbiego/esp32-c3-mini