Hi, I'm new in embedded system,I've stm32f100rb and I want to display a string at an lcd named jhd162a 16x2, but when I test it, the lcd always display a black line,I test it with an empty board and it's the same problem, one black line. anyone have an idea please??? and thank you.
thank you very much, but I ask if you have some simple projects about lcd to more understand it :)
What you have shown is pretty simple as LCD projects go!
That's the point - to be able to understand even a "simple" LCD project, you need to have worked through the basics of handling GPIO, registers, timing, etc.
You need to lay the foundations first before you start trying to put in doors & windows!