Hi,
I im trying to run simple character lcd, without core module, but keep getting some random chars, or even just blocks, but it keeps blinking.
I followed schematic from uCApps page for STM32F4, but the part to set Luminance i dropped and simply connected it to ground, Could be this a problem ?
Tried to connect from scratch everything a few times, but still getting the same error…
Please, if anyone has a tip what could be the problem, mine is that as i am lame at electronics, somewhere is connection problem maybe, im bit confused about the resistor array.
Here is a video showing the behavior of LCD
https://drive.google.com/open?id=1CPgCp6t-rewshbGq7Yprdonu_htadADo
Thanks,
Martin