26 lines
1.3 KiB
Markdown
26 lines
1.3 KiB
Markdown
Adafruit provides a really nice [firmware flashing tutorial](https://learn.adafruit.com/building-and-running-micropython-on-the-esp8266/flash-firmware). Below you'll find just the basics for the two popular tools esptool and NodeMCU Flasher.
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!!! note "Note:"
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Keep in mind that the ESP8266 needs to be put into flash mode before you can flash a new firmware!
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## esptool
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> A cute Python utility to communicate with the ROM bootloader in Espressif ESP8266. It is intended to be a simple, platform independent, open source replacement for XTCOM.
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Source: [https://github.com/themadinventor/esptool](https://github.com/themadinventor/esptool)
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Supported platforms: OS X, Linux, Windows, anything that runs Python
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**Running esptool.py**
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Run the following command to flash an *aggregated* binary as is produced for example by the [cloud build service](build.md#cloud-build-service) or the [Docker image](build.md#docker-image).
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`esptool.py --port <USB-port-with-ESP8266> write_flash 0x00000 <nodemcu-firmware>.bin`
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## NodeMCU Flasher
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> A firmware Flash tool for NodeMCU...We are working on next version and will use QT framework. It will be cross platform and open-source.
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Source: [https://github.com/nodemcu/nodemcu-flasher](https://github.com/nodemcu/nodemcu-flasher)
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Supported platforms: Windows |