ISR not in IRAM

[starfish1107]

have problems with my
older version of weatherstation colour kit with wemos d1 mini 4M.
clean reinstall arduino ide, compiling and flashing (master, Latest commit 2133809 on 24 Feb) according step by step tutorial
the device is looping / restarting , serial monitor shows:

Connecting to WiFi home1/a1b2c3d4e5
.........Connected...Initializing touch screen...
ISR not in IRAM!

any idea how to get it working?

[G6EJD]

I think you may be using ESP8266 core 2.5.0 and in that build ISR’s now have to be located in IRAM, if so try downgrading your IDE to say 2.4.2 either that or add the IRAM prefix / macro to tell the compiler to place the ISR into IRAM.

[marcelstoer]

try downgrading your IDE to say 2.4.2

Not the IDE, but the ESP8266 toolchain i.e. ESP8266 Arduino core as per https://docs.thingpulse.com/guides/wifi-color-display-kit/#install-the-esp8266-toolchain. We will upgrade our code to be compatible with 2.5.x in the following weeks.

[starfish1107]

youre right - now it works again thanks guys.

[manj9501]

There's one more solution, a more correct one.
You can add modify the declaration of Interrupt Service Routine at line 31 in
XPT2046_Touchscreen.cpp after installing the XPT2046_Touchscreen library and change it to
void ICACHE_RAM_ATTR isrPin(void);
from
void isrPin(void);
This works without the need to downgrade your ESP8266 core.

[marcelstoer]

That is an issue with the touch library this app depends upon. Please leave a comment at PaulStoffregen/XPT2046_Touchscreen#24 (comment) asking the maintainer to please release the fix he committed to master back in June.

[MagnusThome]

Manually updated the https://github.com/PaulStoffregen/XPT2046_Touchscreen/ since it isn't updated from the Arduino IDE library manager. Seem to work fine now :-)

[marcelstoer]

See my previous comment. If enough people ask for a new release the maintainer may eventually create one.