[16x2 LCD problem on STM32F4]

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

[CLCD not in modules, cannot Make, HD44780 with I2C chip]

Hi,

First of all big thanks for this amazing project you guys created,

Im having few troubles,when Im trying to make tutorial project 020_lcd, readme says that i should export my LCD path to clcd, but in modules theres no folder
like that. So make fail.

Should it be compiled with universal in LCD path ?

Second question, i have one HD44780 display with pcf8574 I2C (i hope so it is I2C) chip leftalone, is there in MIOS chance to use it ?  cause it could really help if I can run this display because of my clumsy soldering skills and bad knowledge about electronics.

Thank you for answering,

Martin