Do we need to worry about the IRAM_ATTR when using esp_register_freertos_tick_hook()? I am asking because I experience the following error: "Guru Meditation Error: Core 0 panic'ed (Cache disabled but cached memory region accessed)" I attach a tick_hook to increment the time in a library/component. H...

I ran into similar issues using Sparkfun ESP32 Thing boards: the WiFi (UDP and TCP) performance is really bad. Only 10% of what users can expect. I will post the serial output once I am back in my workshop. For now, I ordered Adafruit boards, let's see if this helps. However: Is there more informati...