ESP8266 Community Forum

- Mon Feb 08, 2016 4:38 pm #40730 I am trying to develop a tool to upload firmware to the ESP8266 module. Currently I have implemented successfully functionality to enter bootloader, sync and start flash procedure. But when I send the first data packet, the module replies with error code 0x07, and I'm wondering what does it means.

Are these error codes known?

- Mon Feb 08, 2016 4:54 pm #40731 There is a very good FW tool --> ESP FLASH DOWNLOAD TOOL V2.4
unless you just want to reinvent the wheel, because it is a challenge.
You may have to dig into the bootloader code to find what the errors are..

- Mon Feb 08, 2016 6:25 pm #40741 Did you check the page/source of esptool? https://github.com/themadinventor/esptool
Martin

- Fri Feb 12, 2016 10:04 am #40975 Of course I checked esptool, I have studied its code to make my version. But it does not define the bootloader error codes.

Unfortunately I have to reinvent the wheel, because the hardware I'm building must be able to flash the firmware by itself.