- Tue Oct 24, 2017 6:40 pm
I would love to continu develop a new tool, but it's on halt now. Maybe I should provide more info, to make things more clear.Background
At the very moment I'm designing a quite complex device, including an ESP8266 onboard.
Before being able to continu, I'm looking for additional details concerning uploading / flashing an ESP8266.More info
Whenever I program an Atmel microcontroller, I flash a HEX or BIN-file, there's the option to perform this without feedback if this process was succesful. Later, I can still decide if I want to verify the sourcecode by downloading it back and verify it with a HEX / BIN-file stored at my computer.
An ESP8266 has to be flashed with a type of Operating System, and afterwards I can flash some sourcecode (bin-file). If I'm correct, this can be done by OTA (Over The Air), but also by wired UART (serial port) connection through Tx / Rx-datalines.
I'm specificly interested in the flashingprocess over wired UART. This type of flashing is a complete mystery to me. I was wondering if it is possible to flash data (bin-file), without immediate feedback about the transferprocess. And also, a bit later, verify if the sourcecode is identical to the one at my computer.
In essence, I'm asking the following : Is it possible to disconnect an ESP8266 Tx-line, while uploading, or flashing a bin-file to an ESP8266 over it's Rx-line ? A bin-file is transfered by the ESP8266 Rx-line, after all.Info to share ?
Anyone able to share the desired info, or can get me into contact with a techie at Espressif ? So far, I've been waiting for almost 2 weeks. I've also sent an email to Espressif, but it keeps silent, as it is overhere.
Go for a Flexible NodeMCU programmer. A joy in tinkering, easy for (multi)programming ESP12, 08 and 07.