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WebThingsIO / webthing-arduino

Simple server for ESP8266, ESP32, Ethernet, or WiFi101-compatible boards compliant with Mozilla's proposed WoT API
Mozilla Public License 2.0
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Exception error crash during update #107

Closed ghost closed 4 years ago

ghost commented 4 years ago

Hi. I have reasonably basic application for a system consisting of a weather sensors (BME680), a soil moisture sensor, and some housekeeping monitoring like supply and battery voltage (this being intended as a solar panel powered device. It has never run, because when adapter->update is called it crashes with Exception error 28. In the end I removed all webthing code from my project, ensured it ran OK as stand-alone, and then inserted the webthing code from the BME280 example in this repository. I made only the minimum changes to use my variable names. That also crashes with the same error. I used "me-no-dev/EspExceptionDecoder" to break down the stack information (with DEBUG set to "Core", and got this:

Exception 28: LoadProhibited: A load referenced a page mapped with an attribute that does not permit loads PC: 0x402030f4: loop() at C:\Users\Derek\Documents\Arduino\libraries\webthing-arduino/ESPWebThingAdapter.h line 182 EXCVADDR: 0x00000070

Decoding stack results 0x4020a7d4: loop_wrapper() at C:\Users\Derek\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.3\cores\esp8266\core_esp8266_main.cpp line 180

I am using Arduino v1.8.12 in Win7. All libraries are up to date. Any help would be great. Thanks, Derek

mrstegeman commented 4 years ago

Can you share your code?

ghost commented 4 years ago

Hi Michael, Thanks for getting back so back. (I am in TZ +8, so I am off for zzzz's.) Code is attached (with a couple of comments on this) and a couple of other odds and ends that might be useful. I have tried a few things like different Flash sizes, but no success. Soil_Sensor_IoTtest.zip

mrstegeman commented 4 years ago

The problem is that you forgot to call setupWebThing() in your setup() function. All seems good with that added in.