\FlashESP8266.exeĮspressif Flash Download Tool located in the directory Espressif_flash_download_tool_v3.8.5. Should be called from the same directory as the compiled bin files: C:\Download\ESPEasy\bin>. For example to configure WiFi.Įsptool.exe A command line ESP8266/ESP32 build and upload helper tool, maintained by Ivan GrokhotkovįlashESP8266.exe A very simple flash tool “ESPEasy Flasher” for ESP82xx. This tool can also be used to send a number of commands to prepare the unit while still connected to the PC. Flashing Software ¶Ī number of flashing tools is included in the nightly build ZIP files.ĮSP. A flasher with graphic UI written by Grovkillen. Some flashing tools also support different methods and thus require a parameter indicating the specific method to boot into flash mode.įor ESP boards with an USB to serial adapter on board, the needed boot method is referred to as “NodeMCU” or some abbreviation of this name. Such a circuit consists of 2 transistors and a few resistors to trigger the reset and GPIO-0 pin in the correct sequence.Īll flashing software is able to use this way of bootstrapping. Most boards which already have an USB to serial on board, also have some circuit present to help booting into flash mode via the USB port. In general the steps are the same to enter flashing mode on both types ESP boards:īoot the node with GPIO-0 connected to GND The programming procedures for flashing an ESP82xx and ESP32 via the serial port differ slightly.
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