rboot-sample

rboot-sample copied to clipboard

Introduction

This is a sample project to show how to build roms for use with rBoot and how to perform an OTA update. You can use rboot-ota.c & rboot-ota.h to add OTA support to your own projects. There is also some commented out code in rboot_ota_start that shows how to write non-rom files to arbitrary location on flash (e.g. for data or embedded filesystems).

To compile

1. If you haven't already compiled rBoot do that first.
2. You will also need a compiled copy of esptool2.
3. Symlink or copy rboot.h, rboot-api.h and rboot-api.c in to this directory.
4. Edit the Makefile to set the paths to the SDK and esptool2.
5. Set WIFI_SSID & WIFI_PWD as env vars or in the makefile.
6. Set OTA server details in rboot-ota.h
7. Flash, as below.
8. Connect a terminal and type 'help'.

All the above are available from GitHub: https://github.com/raburton

Once built simply flash with something like this: esptool.py --port COM2 write_flash -fs 8m 0x00000 rboot.bin 0x02000 rom0.bin 0x82000 rom1.bin 0xfc000 blank4.bin

Tested with SDK v2.2 on an ESP12 (if using a board with less than 1mb of flash a change to the second linker script (rom1.ld) will be required).