Actually it's easier to get them latched-up: enable, then disable the internal pull-up while the pin is configured as input.
But on the other hand, I insist, the latch-up is weak, and you should use some sort of buffer/level-shifter for a proper logic analyzer. Even the cheapest ones have a HC245 buffer: https://lygte-info.dk/review/Equipment% ... %20UK.html
But on the other hand, I insist, the latch-up is weak, and you should use some sort of buffer/level-shifter for a proper logic analyzer. Even the cheapest ones have a HC245 buffer: https://lygte-info.dk/review/Equipment% ... %20UK.html
Statistics: Posted by gmx — Sun Sep 01, 2024 5:28 am