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By bvn123
#95774 When implementing some functions on microcontrollers, for example, a pulse generator, I roughly imagine
- maximum pulse frequency for selected Fck (when use assembler OR C in different IDEs (IAR EWB; GCC and XC8 compilers in Microchip Studio), OR Arduino);
- the ratio of the code size that I will get by writing a program in assembler, in C in different IDEs and in Arduino.

Is it possible to compare IDEs for ESP8266\ESP32 in this regard? Arduino, Eclipce with TDM-GCC and MinGW, PlatformIO, something else...
The same pulse generator: which IDE and compiler will provide
- maximum pulse frequency
- minimum code size?

Or, for example, ESP8266 doesn't provide I2C hardware interface, which IDE+compiler provide max speed for software I2C?

Maybe there were articles on such a comparison with the results?
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By bvn123
#95822 I installed Arduino & Eclipse+ESP_NONOS_SDK+MinGW+GCC and checked simple program to set a pin continuously on|off without delays (only cycle command: while(1) for eclipse and loop() for arduino.
arduino: period 10us, pulse 1.8us
eclipse: period 0.7us, pulse 1.2us
Code size is not so different.
Arduino: very friendly IDE, very slow execution (loop() for example)
Eclipse (or any other IDE?)+library (SDK or API)+GCC: it was hard to setup and start to work but it provides efficient code; there is weak support to solve some problems as in Eclipse, so as in makefile organization and errors when compiling in GCC.
The answers in other forum: there is no alternative for ESP8266, ESP32 - only GCC compiler is used in any IDE. Is it so?
May be some other IDE is more friendly then Eclipse as for support and connecting all these libs, compiler,...?