Module losing firmware on reset
Posted: Tue Mar 31, 2015 11:02 amGreetings,
I wanted to flash the NodeMCU firmware on my ESP8266 module. I pulled down the GPIO0 pin, pulled up the GPIO2 pin and connected it to a USB-to-RS232 converter over a MAX3232 level converter. Then, I downloaded the official NodeMCU firmware programmer and successfully flashed it. After flashing, without disconnecting the GPIO pins, I opened a serial terminal at 9600 baud and the Lua interpreter worked flawlessly.
The problem is that if I reset the module, no matter if the GPIO pins are connected or hanging, nothing but some gibberish appears on screen and the module isn't responsive. The same thing happens if I type node.reset(). Am I possibly missing something, or have I bought a faulty module?
Thanks,
Fran
I wanted to flash the NodeMCU firmware on my ESP8266 module. I pulled down the GPIO0 pin, pulled up the GPIO2 pin and connected it to a USB-to-RS232 converter over a MAX3232 level converter. Then, I downloaded the official NodeMCU firmware programmer and successfully flashed it. After flashing, without disconnecting the GPIO pins, I opened a serial terminal at 9600 baud and the Lua interpreter worked flawlessly.
The problem is that if I reset the module, no matter if the GPIO pins are connected or hanging, nothing but some gibberish appears on screen and the module isn't responsive. The same thing happens if I type node.reset(). Am I possibly missing something, or have I bought a faulty module?
Thanks,
Fran