Based on ESP8266 off-chip SPI-Flash demo

ESP8266 Development Environment

• Use Espressif IDF: ESP8266_RTOS_SDK (version: ESP-IDF v3.2-252-g73bf28b-dirty), download: https://github.com/espressif/ESP8266_RTOS_SDK.git
• Install the cross-compilation tool chain, download:

ESP8266 Development Guide

• For detailed installation and development tutorials, please refer to:

Compile and download

• make all
• Use serial cable to connect 8266 development board to PC
• Enable the serial port, execute the command: sudo chmod 777 /dev/ttyUSB*
• make monitor