Search found 2 matches

by Zoot
Sun Nov 14, 2021 9:54 pm
Forum: Raspberry Pi microcontroller boards
Topic: Leveraging second core, code hangs
Replies: 10
Views: 7766

Re: Leveraging second core, code hangs

I believe that Floats are heap-allocated objects unlike (machine sized) ints, so computing new Float values involves doing heap allocations which will not be safe in a multi-threaded context. There's a docs section on writing interrupt handlers which have similar restrictions as an interrupt can occ...
by Zoot
Sat Apr 24, 2021 12:55 am
Forum: ESP32 boards
Topic: Crash at wlan.active(True)
Replies: 9
Views: 35568

Re: Crash at wlan.active(True)

There are a bunch of ESP32 boards out there recently that have inappropriately sized 3.3V regulator chips that can only source 150ma for a device that calls for 500ma worst-case. When transmitting with WIFI the power usage will go up to something like 250ma by default and BOOM, you reset with the br...