Guru Meditation Error: Core 1 panic'ed (Cache disabled but cached memory region accessed)

[Paula Mancilla]

Hi!

I was using a Fipy with the pytrack expansion board, and I got this error and it doesn't allow me to upload files to the microcontroller, I can't even run the programs through the terminal

I also have a new lopy without use, I tried it and it comes out with the same error, but if I can if I can run programs, however it comes out with the same error of Guru Meditation

I tried to upload a program that I made to control a MPU6050, and this happened, then I put a basic program (a print ("hello")) and I never managed to upload it to the Fipy, it didn't even run, I also did the board resets and it came back to the same

Este es el error: :(

How can I solve this problem? Please, thank you in advance

[Paula Mancilla]

very very thanks, it's works I can upload and run programs :D

[Gijs]

Hi,
The Guru meditation error is like the blue-screen of pycom microcontrollers. Somewhere in the code, your program tries to access (probably unintentionally) a memory address that is out of bounds.
You can safeboot the device and clear the flash memory (safebooting: https://docs.pycom.io/gettingstarted/programming/safeboot/) and

os.fsformat("/flash")

To solve the issue. However that will not always stop it from re-occuring the next time you upload code. If the coredump also happens when you cleared the flash, there is probably an error in the CONFIG or NVS partitions. In that case, you can clear those in the pycom firmware updater tool in the advanced section, together with erasing the flash.

If you want to examine the coredump further, have a look here: https://docs.pycom.io/advance/coredump/
But I must say, its quite advanced

Gijs