ESP8266 PROG

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Setup ESP-12S (downloader) ESP-12FD (arduino)
SPI Speed 40MHz 40MHz
Crystal 26Mhz 26Mhz
SPI Mode QIO DOUT
Flash Size 32Mbit 4MB (FS: non OTA:~ 1019KB)
Flash vendor/devID 20h/4016h/QUAD -
Speed 150K 300K
Build-in LED - 2
Flash Frequency - 40Mhz
Reset - DTR (aka nodemcu)
Debug port - disabled
Debug level - none
IwIP Variant - v2 lower memory
VTables - flash
Exceptions - legacy (new can return nullptr)
Erase Flash - All Flash Contents
Espressif FW - nonos-sdk 2.2.1+100 (190703)
SSL Support - ALL SSL ciphers (most compatible)