ESP8266 Crash during interrupt serve #5337
Description
Basic Infos
- This issue complies with the issue POLICY doc.
- I have read the documentation at readthedocs and the issue is not addressed there.
- I have tested that the issue is present in current master branch (aka latest git).
- I have searched the issue tracker for a similar issue.
- If there is a stack dump, I have decoded it.
- I have filled out all fields below.
Platform
- Hardware: [ESP-12|
- Core Version:
- Development Env: [Arduino IDE]
- Operating System: [Ubuntu]
Settings in IDE
- Module: [Nodemcu 1.0]
- Flash Mode: SPIFFS
- Flash Size: 4 MB
- lwip Variant: [v2 Lower Memory]
- Reset Method: [nodemcu]
- Flash Frequency:
- CPU Frequency: [80Mhz]
- Upload Using: [SERIAL]
- Upload Speed: 115200
Goal
- Whenever there is "Low" signal in pin D1, interrupt will be generated, it will reset ESP8266 and publish some data over network and enter to light sleep mode.
- Interrupt frequency is higher than 10 ms.
Problem Description
- Whenever Interrupt occurred on pin, esp8266 got crashed. Debug message is mentioned below.
- I have seen some issue regarding this, in that they have suggest to use ICACHE_RAM_ATTR, that i have also tried, but outcome is same.
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <ArduinoJson.h>
void ICACHE_RAM_ATTR handleInterrupt()
{
int int_cntr;
int_cntr = 0;
for (int a = 0; a < 50; a++) {
if (digitalRead(ESP_TOUCH_MODE_PIN) != 0) {
int_cntr++;
if (int_cntr >= 10) {
break;
}
}
delay(1);
}
if (int_cntr < 10) {
ESP.restart();
}
timer1_write(TMR1_DLY_CNTS);
}
void setup() {
pinMode(D1, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(D1), handleInterrupt, FALLING);
setup_wifi();
client.setServer(mqtt_server, mqtt_port);
client.setCallback(callback);
Push_Data_To_Gateway(); // Publish Data (MQTT) and enter in to light sleep mode
}
void loop() {
// main loop is blank
}
Debug Messages
Exception (9):
epc1=0x40104bb5 epc2=0x00000000 epc3=0x00000000 excvaddr=0xffffffff depc=0x00000000
ctx: sys
sp: 3fffeb90 end: 3fffffb0 offset: 01a0
stack>>>
3fffed30: 3fffed40 3fff03dc 00000000 3ffef7e1
3fffed40: 4021cc5e 00000030 0000001e ffffffff