공부하고 차근 차근 보려고 정리해놨어요.

 

ISR not in IRAM 이 도대체 무슨 뜻인가? : forum.arduino.cc/index.php?topic=616264.0

 

Using interrupts with a Node MCU

I was also facing the same issue. But following code example would solve your issue. /* This code is for executing the interrupt in ESP8266. *  The main purpose is to solve the ISR not in RAM isssue. *   * ISR Function : The interrupt pin [GPIO5 ] once c

forum.arduino.cc

The proper way to do an ISR for ESP8266 is by placing it in the IRAM - instead of having it execute from Flash. The second option works most of the time but is not reliable, a few years ago I found that out the hard way as I had an ISR crash now and then. Adding the ICACHE_RAM_ATTR fixed this issue: it places the ISR in IRAM, and no more random crashes.

-> 논리적으로 이해는 가는데, 왜 켤 때마다 ISR not in IRAM이 뜨는지는 설명이 안된다.

그럼 정상 작동할 때도 있고 crash날 때도 있어야지.

 

https://orasman.tistory.com/435

 

NodeMCU 다시 시작

NodeMCU V3 핀맵 설치 사용가능한 GPIO 5핀 https://makernambo.com/49 RCSwitch 라이브러리는 인터럽트 사용 NodeMCU에서 인터럽트 사용하면 에러가 발생 : ISR not in IRAM 해결책 : https://forum.arduino.cc..

orasman.tistory.com

https://community.blynk.cc/t/error-isr-not-in-iram/37426/4

 

Error ISR not in IRAM!

I tried to include all the code but as I am new was rejected WeMo D1 Trying again: /* Comment this out to disable prints and save space */ #define BLYNK_PRINT Serial /* Set this to a bigger number, to enable sending longer messages */ //#define BLYNK_MAX_S

community.blynk.cc

https://forum.arduino.cc/index.php?topic=633520.0

 

WeMos D1 mini - attachInterrupt causing Reset

This is my first time using WeMos D1 mini...  I used interrupts with Arduino uno and worked fine but, sssuming this code (it's just a short example...) #define PinSensorePIR D7void setup() {    Serial.begin(115200);    Serial.println("Setup");    Se

forum.arduino.cc

https://arduino-esp8266.readthedocs.io/en/latest/reference.html?highlight=attachinterrupt#digital-io

 

Reference — ESP8266 Arduino Core 2.7.1-40-g52f4cc8d documentation

Digital IO Pin numbers in Arduino correspond directly to the ESP8266 GPIO pin numbers. pinMode, digitalRead, and digitalWrite functions work as usual, so to read GPIO2, call digitalRead(2). Digital pins 0—15 can be INPUT, OUTPUT, or INPUT_PULLUP. Pin 16

arduino-esp8266.readthedocs.io

https://github.com/esp8266/Arduino/issues/2680

 

Add ICACHE_RAM_ATTR to __pinMode in core_esp8266_wiring_digital.c · Issue #2680 · esp8266/Arduino

Basic Infos It is known that random resets are caused by code in Interrupt service routine access flash program memory and most functions now have ICACHE_RAM_ATTR to prevent this but In file core_e...

github.com

 

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    codingDNA

    Wow!! Thanks!!