francesco.u wrote:Code: Select allesptool.py --port /dev/ttyUSB0 write_flash -fm dio -fs 32m -ff 4m 0x00000 bin/nodemcu_integer_master_20161203-1334.bin 0x3FC000 ~/esp_init_data_default.bin
That's good - in a way. You learned about the different parameters.
- The dev branch which contained an improvement which would allow the firmware to set the init data upon boot was merged to master on Dec 1st. Hence, you don't need to flash init data manually anymore.
- esptool.py >= v1.2 doesn't require the flash size parameter anymore as comes with auto detection
francesco.u wrote:the blue led doesn't blink anymore and when I open the serial on ESPlorer I get (after 30 seconds!!!)
NodeMCU uses 115'200 baud by default. That's probably the reason you're seeing garbled text. The reason it took 30s most likely is that NodeMCU was formatting the SPIFFS file system. It prints a corresponding message to console (which you couldn't read).
Now play with the 'turbo'/'dumb' mode settings with ESPlorer until you find a stable configuration.